diff --git a/backend/docker-entrypoint.sh b/backend/docker-entrypoint.sh
index a3882fd3..471113bf 100755
--- a/backend/docker-entrypoint.sh
+++ b/backend/docker-entrypoint.sh
@@ -1,6 +1,10 @@
 #!/bin/sh
-# Beim Container-Start: Schema in DB pushen (idempotent) + (optional) seed.
-# RUN_SEED=true beim ersten Start setzen, danach wieder auf false.
+# Container-Start:
+#   1) Auf DB warten
+#   2) Auto-Baseline für bestehende DBs (db-push-Ära ohne _prisma_migrations)
+#   3) `prisma migrate deploy` (idempotent, datenerhaltend)
+#   4) Auto-Seed bei leerer User-Tabelle (oder RUN_SEED=true)
+# Neue Schema-Änderung anlegen (lokal, im Dev): npm run schema:sync
 set -e
 
 # DATABASE_URL aus DB_*-Komponenten bauen, falls nicht explizit gesetzt.
@@ -21,10 +25,16 @@ if [ -z "$DATABASE_URL" ] && [ -n "$DB_USER" ] && [ -n "$DB_PASSWORD" ] && [ -n
 fi
 
 echo "[entrypoint] Warte auf Datenbank…"
-# Prisma versucht selbst Connect; einfacher Retry-Loop um Race-Bedingungen
-# beim parallelen Container-Start abzufangen.
+# Erst auf DB-Verfügbarkeit warten via einfachem Connect-Check.
+# Wir nutzen Prisma's interne Engine, kein extra mysql-client nötig.
 TRIES=30
-until npx prisma db push --skip-generate --accept-data-loss 2>/dev/null; do
+until node -e "
+  const { PrismaClient } = require('@prisma/client');
+  const p = new PrismaClient();
+  p.\$queryRaw\`SELECT 1\`
+    .then(() => p.\$disconnect().then(() => process.exit(0)))
+    .catch(() => process.exit(1));
+" 2>/dev/null; do
   TRIES=$((TRIES - 1))
   if [ "$TRIES" -le 0 ]; then
     echo "[entrypoint] DB nicht erreichbar – Abbruch"
@@ -33,7 +43,51 @@ until npx prisma db push --skip-generate --accept-data-loss 2>/dev/null; do
   echo "[entrypoint] DB noch nicht bereit – retry in 2s ($TRIES Versuche übrig)"
   sleep 2
 done
-echo "[entrypoint] DB-Schema synced"
+echo "[entrypoint] DB erreichbar"
+
+# Auto-Baseline: Wenn die DB Anwendungs-Tabellen enthält (z.B. User), aber noch
+# keine _prisma_migrations-Tabelle, dann ist es eine "alte" DB, die früher mit
+# `prisma db push` synced wurde. Wir markieren 0_init als bereits angewendet,
+# damit `migrate deploy` nicht versucht, alle Tabellen nochmal anzulegen.
+NEEDS_BASELINE=$(node -e "
+  const { PrismaClient } = require('@prisma/client');
+  const p = new PrismaClient();
+  (async () => {
+    try {
+      const dbName = process.env.DB_NAME;
+      const tables = await p.\$queryRawUnsafe(
+        \`SELECT TABLE_NAME FROM information_schema.TABLES WHERE TABLE_SCHEMA = ?\`,
+        dbName
+      );
+      const names = tables.map(t => t.TABLE_NAME);
+      const hasMigrations = names.includes('_prisma_migrations');
+      const hasUserTable  = names.includes('User');
+      // Existing DB (User da) ohne Migrations-Tracking => Baseline nötig
+      if (hasUserTable && !hasMigrations) process.stdout.write('yes');
+      else process.stdout.write('no');
+    } catch (e) {
+      process.stdout.write('no');
+    } finally {
+      await p.\$disconnect();
+    }
+  })();
+" 2>/dev/null)
+
+if [ "$NEEDS_BASELINE" = "yes" ]; then
+  echo "[entrypoint] Bestehende DB ohne Migrations-Tracking erkannt – markiere 0_init als angewendet (Baseline)"
+  npx prisma migrate resolve --applied 0_init || echo "[entrypoint] Baseline fehlgeschlagen – fahre trotzdem fort"
+fi
+
+# Migrations anwenden (idempotent: bereits angewendete werden übersprungen).
+# Im Gegensatz zu `db push` löscht `migrate deploy` keine Daten — Schema-
+# Änderungen werden über versionierte Migrations-Files unter prisma/migrations/
+# eingespielt. Neue Migration anlegen mit: npm run schema:sync (lokal, dev).
+echo "[entrypoint] Wende Migrations an…"
+if ! npx prisma migrate deploy; then
+  echo "[entrypoint] migrate deploy fehlgeschlagen – Abbruch"
+  exit 1
+fi
+echo "[entrypoint] DB-Schema aktuell"
 
 # Auto-Seed: wenn die User-Tabelle leer ist (= Erstinstallation), automatisch seeden.
 # RUN_SEED=true erzwingt Seed auch bei nicht-leerer DB (z.B. nach Reset).
diff --git a/backend/package.json b/backend/package.json
index db1b01e0..4bbc021a 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -12,6 +12,7 @@
     "start": "node dist/index.js",
     "db:migrate": "prisma migrate dev",
     "db:push": "prisma db push",
+    "schema:sync": "prisma migrate dev --name auto_$(date +%Y%m%d_%H%M%S)",
     "db:seed": "tsx prisma/seed.ts",
     "db:studio": "prisma studio",
     "db:backup": "tsx prisma/backup-data.ts",
diff --git a/backend/prisma/migrations/0_init/migration.sql b/backend/prisma/migrations/0_init/migration.sql
new file mode 100644
index 00000000..d83ad00c
--- /dev/null
+++ b/backend/prisma/migrations/0_init/migration.sql
@@ -0,0 +1,989 @@
+-- CreateTable
+CREATE TABLE `PdfTemplate` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `name` VARCHAR(191) NOT NULL,
+    `description` VARCHAR(191) NULL,
+    `providerName` VARCHAR(191) NULL,
+    `templatePath` VARCHAR(191) NOT NULL,
+    `originalName` VARCHAR(191) NOT NULL,
+    `fieldMapping` LONGTEXT NOT NULL,
+    `phoneFieldPrefix` VARCHAR(191) NULL,
+    `maxPhoneFields` INTEGER NULL DEFAULT 8,
+    `isActive` BOOLEAN NOT NULL DEFAULT true,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    UNIQUE INDEX `PdfTemplate_name_key`(`name`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `EmailLog` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `fromAddress` VARCHAR(191) NOT NULL,
+    `toAddress` VARCHAR(191) NOT NULL,
+    `subject` VARCHAR(191) NOT NULL,
+    `context` VARCHAR(191) NOT NULL,
+    `customerId` INTEGER NULL,
+    `triggeredBy` VARCHAR(191) NULL,
+    `smtpServer` VARCHAR(191) NOT NULL,
+    `smtpPort` INTEGER NOT NULL,
+    `smtpEncryption` VARCHAR(191) NOT NULL,
+    `smtpUser` VARCHAR(191) NOT NULL,
+    `success` BOOLEAN NOT NULL,
+    `messageId` VARCHAR(191) NULL,
+    `errorMessage` TEXT NULL,
+    `smtpResponse` TEXT NULL,
+    `sentAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+
+    INDEX `EmailLog_sentAt_idx`(`sentAt`),
+    INDEX `EmailLog_customerId_idx`(`customerId`),
+    INDEX `EmailLog_success_idx`(`success`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `AppSetting` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `key` VARCHAR(191) NOT NULL,
+    `value` TEXT NOT NULL,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    UNIQUE INDEX `AppSetting_key_key`(`key`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `User` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `email` VARCHAR(191) NOT NULL,
+    `password` VARCHAR(191) NOT NULL,
+    `firstName` VARCHAR(191) NOT NULL,
+    `lastName` VARCHAR(191) NOT NULL,
+    `isActive` BOOLEAN NOT NULL DEFAULT true,
+    `tokenInvalidatedAt` DATETIME(3) NULL,
+    `passwordResetToken` VARCHAR(191) NULL,
+    `passwordResetExpiresAt` DATETIME(3) NULL,
+    `whatsappNumber` VARCHAR(191) NULL,
+    `telegramUsername` VARCHAR(191) NULL,
+    `signalNumber` VARCHAR(191) NULL,
+    `customerId` INTEGER NULL,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    UNIQUE INDEX `User_email_key`(`email`),
+    UNIQUE INDEX `User_passwordResetToken_key`(`passwordResetToken`),
+    UNIQUE INDEX `User_customerId_key`(`customerId`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `Role` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `name` VARCHAR(191) NOT NULL,
+    `description` VARCHAR(191) NULL,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    UNIQUE INDEX `Role_name_key`(`name`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `Permission` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `resource` VARCHAR(191) NOT NULL,
+    `action` VARCHAR(191) NOT NULL,
+
+    UNIQUE INDEX `Permission_resource_action_key`(`resource`, `action`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `RolePermission` (
+    `roleId` INTEGER NOT NULL,
+    `permissionId` INTEGER NOT NULL,
+
+    PRIMARY KEY (`roleId`, `permissionId`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `UserRole` (
+    `userId` INTEGER NOT NULL,
+    `roleId` INTEGER NOT NULL,
+
+    PRIMARY KEY (`userId`, `roleId`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `Customer` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `customerNumber` VARCHAR(191) NOT NULL,
+    `type` ENUM('PRIVATE', 'BUSINESS') NOT NULL DEFAULT 'PRIVATE',
+    `salutation` VARCHAR(191) NULL,
+    `firstName` VARCHAR(191) NOT NULL,
+    `lastName` VARCHAR(191) NOT NULL,
+    `companyName` VARCHAR(191) NULL,
+    `foundingDate` DATETIME(3) NULL,
+    `birthDate` DATETIME(3) NULL,
+    `birthPlace` VARCHAR(191) NULL,
+    `email` VARCHAR(191) NULL,
+    `phone` VARCHAR(191) NULL,
+    `mobile` VARCHAR(191) NULL,
+    `taxNumber` VARCHAR(191) NULL,
+    `businessRegistrationPath` VARCHAR(191) NULL,
+    `commercialRegisterPath` VARCHAR(191) NULL,
+    `commercialRegisterNumber` VARCHAR(191) NULL,
+    `privacyPolicyPath` VARCHAR(191) NULL,
+    `consentHash` VARCHAR(191) NULL,
+    `notes` TEXT NULL,
+    `portalEnabled` BOOLEAN NOT NULL DEFAULT false,
+    `portalEmail` VARCHAR(191) NULL,
+    `portalPasswordHash` VARCHAR(191) NULL,
+    `portalPasswordEncrypted` VARCHAR(191) NULL,
+    `portalLastLogin` DATETIME(3) NULL,
+    `portalPasswordResetToken` VARCHAR(191) NULL,
+    `portalPasswordResetExpiresAt` DATETIME(3) NULL,
+    `portalTokenInvalidatedAt` DATETIME(3) NULL,
+    `lastBirthdayGreetingYear` INTEGER NULL,
+    `useInformalAddress` BOOLEAN NOT NULL DEFAULT false,
+    `autoBirthdayGreeting` BOOLEAN NOT NULL DEFAULT false,
+    `autoBirthdayChannel` VARCHAR(191) NULL,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    UNIQUE INDEX `Customer_customerNumber_key`(`customerNumber`),
+    UNIQUE INDEX `Customer_consentHash_key`(`consentHash`),
+    UNIQUE INDEX `Customer_portalEmail_key`(`portalEmail`),
+    UNIQUE INDEX `Customer_portalPasswordResetToken_key`(`portalPasswordResetToken`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `CustomerRepresentative` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `customerId` INTEGER NOT NULL,
+    `representativeId` INTEGER NOT NULL,
+    `notes` VARCHAR(191) NULL,
+    `isActive` BOOLEAN NOT NULL DEFAULT true,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    UNIQUE INDEX `CustomerRepresentative_customerId_representativeId_key`(`customerId`, `representativeId`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `RepresentativeAuthorization` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `customerId` INTEGER NOT NULL,
+    `representativeId` INTEGER NOT NULL,
+    `isGranted` BOOLEAN NOT NULL DEFAULT false,
+    `grantedAt` DATETIME(3) NULL,
+    `withdrawnAt` DATETIME(3) NULL,
+    `source` VARCHAR(191) NULL,
+    `documentPath` VARCHAR(191) NULL,
+    `notes` TEXT NULL,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    UNIQUE INDEX `RepresentativeAuthorization_customerId_representativeId_key`(`customerId`, `representativeId`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `Address` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `customerId` INTEGER NOT NULL,
+    `type` ENUM('DELIVERY_RESIDENCE', 'BILLING') NOT NULL DEFAULT 'DELIVERY_RESIDENCE',
+    `street` VARCHAR(191) NOT NULL,
+    `houseNumber` VARCHAR(191) NOT NULL,
+    `postalCode` VARCHAR(191) NOT NULL,
+    `city` VARCHAR(191) NOT NULL,
+    `country` VARCHAR(191) NOT NULL DEFAULT 'Deutschland',
+    `isDefault` BOOLEAN NOT NULL DEFAULT false,
+    `ownerCompany` VARCHAR(191) NULL,
+    `ownerFirstName` VARCHAR(191) NULL,
+    `ownerLastName` VARCHAR(191) NULL,
+    `ownerStreet` VARCHAR(191) NULL,
+    `ownerHouseNumber` VARCHAR(191) NULL,
+    `ownerPostalCode` VARCHAR(191) NULL,
+    `ownerCity` VARCHAR(191) NULL,
+    `ownerPhone` VARCHAR(191) NULL,
+    `ownerMobile` VARCHAR(191) NULL,
+    `ownerEmail` VARCHAR(191) NULL,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `BankCard` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `customerId` INTEGER NOT NULL,
+    `accountHolder` VARCHAR(191) NOT NULL,
+    `iban` VARCHAR(191) NOT NULL,
+    `bic` VARCHAR(191) NULL,
+    `bankName` VARCHAR(191) NULL,
+    `expiryDate` DATETIME(3) NULL,
+    `documentPath` VARCHAR(191) NULL,
+    `isActive` BOOLEAN NOT NULL DEFAULT true,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `IdentityDocument` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `customerId` INTEGER NOT NULL,
+    `type` ENUM('ID_CARD', 'PASSPORT', 'DRIVERS_LICENSE', 'OTHER') NOT NULL DEFAULT 'ID_CARD',
+    `documentNumber` VARCHAR(191) NOT NULL,
+    `issuingAuthority` VARCHAR(191) NULL,
+    `issueDate` DATETIME(3) NULL,
+    `expiryDate` DATETIME(3) NULL,
+    `documentPath` VARCHAR(191) NULL,
+    `isActive` BOOLEAN NOT NULL DEFAULT true,
+    `licenseClasses` VARCHAR(191) NULL,
+    `licenseIssueDate` DATETIME(3) NULL,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `EmailProviderConfig` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `name` VARCHAR(191) NOT NULL,
+    `type` ENUM('PLESK', 'CPANEL', 'DIRECTADMIN') NOT NULL,
+    `apiUrl` VARCHAR(191) NOT NULL,
+    `apiKey` VARCHAR(191) NULL,
+    `username` VARCHAR(191) NULL,
+    `passwordEncrypted` VARCHAR(191) NULL,
+    `domain` VARCHAR(191) NOT NULL,
+    `defaultForwardEmail` VARCHAR(191) NULL,
+    `imapServer` VARCHAR(191) NULL,
+    `imapPort` INTEGER NULL DEFAULT 993,
+    `smtpServer` VARCHAR(191) NULL,
+    `smtpPort` INTEGER NULL DEFAULT 465,
+    `imapEncryption` ENUM('SSL', 'STARTTLS', 'NONE') NOT NULL DEFAULT 'SSL',
+    `smtpEncryption` ENUM('SSL', 'STARTTLS', 'NONE') NOT NULL DEFAULT 'SSL',
+    `allowSelfSignedCerts` BOOLEAN NOT NULL DEFAULT false,
+    `systemEmailAddress` VARCHAR(191) NULL,
+    `systemEmailPasswordEncrypted` VARCHAR(191) NULL,
+    `customerEmailLabel` VARCHAR(191) NULL,
+    `isActive` BOOLEAN NOT NULL DEFAULT true,
+    `isDefault` BOOLEAN NOT NULL DEFAULT false,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    UNIQUE INDEX `EmailProviderConfig_name_key`(`name`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `StressfreiEmail` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `customerId` INTEGER NOT NULL,
+    `email` VARCHAR(191) NOT NULL,
+    `platform` VARCHAR(191) NULL,
+    `notes` TEXT NULL,
+    `isActive` BOOLEAN NOT NULL DEFAULT true,
+    `isProvisioned` BOOLEAN NOT NULL DEFAULT false,
+    `provisionedAt` DATETIME(3) NULL,
+    `provisionError` TEXT NULL,
+    `hasMailbox` BOOLEAN NOT NULL DEFAULT false,
+    `emailPasswordEncrypted` VARCHAR(191) NULL,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `CachedEmail` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `stressfreiEmailId` INTEGER NOT NULL,
+    `folder` ENUM('INBOX', 'SENT') NOT NULL DEFAULT 'INBOX',
+    `messageId` VARCHAR(191) NOT NULL,
+    `uid` INTEGER NOT NULL,
+    `subject` VARCHAR(191) NULL,
+    `fromAddress` VARCHAR(191) NOT NULL,
+    `fromName` VARCHAR(191) NULL,
+    `toAddresses` TEXT NOT NULL,
+    `ccAddresses` TEXT NULL,
+    `receivedAt` DATETIME(3) NOT NULL,
+    `textBody` LONGTEXT NULL,
+    `htmlBody` LONGTEXT NULL,
+    `hasAttachments` BOOLEAN NOT NULL DEFAULT false,
+    `attachmentNames` TEXT NULL,
+    `contractId` INTEGER NULL,
+    `assignedAt` DATETIME(3) NULL,
+    `assignedBy` INTEGER NULL,
+    `isAutoAssigned` BOOLEAN NOT NULL DEFAULT false,
+    `isRead` BOOLEAN NOT NULL DEFAULT false,
+    `isStarred` BOOLEAN NOT NULL DEFAULT false,
+    `isDeleted` BOOLEAN NOT NULL DEFAULT false,
+    `deletedAt` DATETIME(3) NULL,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    INDEX `CachedEmail_contractId_idx`(`contractId`),
+    INDEX `CachedEmail_stressfreiEmailId_folder_receivedAt_idx`(`stressfreiEmailId`, `folder`, `receivedAt`),
+    INDEX `CachedEmail_stressfreiEmailId_isDeleted_idx`(`stressfreiEmailId`, `isDeleted`),
+    UNIQUE INDEX `CachedEmail_stressfreiEmailId_messageId_folder_key`(`stressfreiEmailId`, `messageId`, `folder`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `Meter` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `customerId` INTEGER NOT NULL,
+    `meterNumber` VARCHAR(191) NOT NULL,
+    `type` ENUM('ELECTRICITY', 'GAS') NOT NULL,
+    `tariffModel` ENUM('SINGLE', 'DUAL') NOT NULL DEFAULT 'SINGLE',
+    `location` VARCHAR(191) NULL,
+    `isActive` BOOLEAN NOT NULL DEFAULT true,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `MeterReading` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `meterId` INTEGER NOT NULL,
+    `readingDate` DATETIME(3) NOT NULL,
+    `value` DOUBLE NOT NULL,
+    `valueNt` DOUBLE NULL,
+    `unit` VARCHAR(191) NOT NULL DEFAULT 'kWh',
+    `notes` VARCHAR(191) NULL,
+    `reportedBy` VARCHAR(191) NULL,
+    `status` ENUM('RECORDED', 'REPORTED', 'TRANSFERRED') NOT NULL DEFAULT 'RECORDED',
+    `transferredAt` DATETIME(3) NULL,
+    `transferredBy` VARCHAR(191) NULL,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `SalesPlatform` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `name` VARCHAR(191) NOT NULL,
+    `contactInfo` TEXT NULL,
+    `isActive` BOOLEAN NOT NULL DEFAULT true,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    UNIQUE INDEX `SalesPlatform_name_key`(`name`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `CancellationPeriod` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `code` VARCHAR(191) NOT NULL,
+    `description` VARCHAR(191) NOT NULL,
+    `isActive` BOOLEAN NOT NULL DEFAULT true,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    UNIQUE INDEX `CancellationPeriod_code_key`(`code`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `ContractDuration` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `code` VARCHAR(191) NOT NULL,
+    `description` VARCHAR(191) NOT NULL,
+    `isActive` BOOLEAN NOT NULL DEFAULT true,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    UNIQUE INDEX `ContractDuration_code_key`(`code`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `Provider` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `name` VARCHAR(191) NOT NULL,
+    `portalUrl` VARCHAR(191) NULL,
+    `usernameFieldName` VARCHAR(191) NULL,
+    `passwordFieldName` VARCHAR(191) NULL,
+    `isActive` BOOLEAN NOT NULL DEFAULT true,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    UNIQUE INDEX `Provider_name_key`(`name`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `Tariff` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `providerId` INTEGER NOT NULL,
+    `name` VARCHAR(191) NOT NULL,
+    `isActive` BOOLEAN NOT NULL DEFAULT true,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    UNIQUE INDEX `Tariff_providerId_name_key`(`providerId`, `name`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `ContractCategory` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `code` VARCHAR(191) NOT NULL,
+    `name` VARCHAR(191) NOT NULL,
+    `icon` VARCHAR(191) NULL,
+    `color` VARCHAR(191) NULL,
+    `sortOrder` INTEGER NOT NULL DEFAULT 0,
+    `isActive` BOOLEAN NOT NULL DEFAULT true,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    UNIQUE INDEX `ContractCategory_code_key`(`code`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `Contract` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `contractNumber` VARCHAR(191) NOT NULL,
+    `customerId` INTEGER NOT NULL,
+    `type` ENUM('ELECTRICITY', 'GAS', 'DSL', 'CABLE', 'FIBER', 'MOBILE', 'TV', 'CAR_INSURANCE') NOT NULL,
+    `status` ENUM('DRAFT', 'PENDING', 'ACTIVE', 'CANCELLED', 'EXPIRED', 'DEACTIVATED') NOT NULL DEFAULT 'DRAFT',
+    `contractCategoryId` INTEGER NULL,
+    `addressId` INTEGER NULL,
+    `billingAddressId` INTEGER NULL,
+    `bankCardId` INTEGER NULL,
+    `identityDocumentId` INTEGER NULL,
+    `salesPlatformId` INTEGER NULL,
+    `cancellationPeriodId` INTEGER NULL,
+    `contractDurationId` INTEGER NULL,
+    `previousContractId` INTEGER NULL,
+    `previousProviderId` INTEGER NULL,
+    `previousCustomerNumber` VARCHAR(191) NULL,
+    `previousContractNumber` VARCHAR(191) NULL,
+    `providerId` INTEGER NULL,
+    `tariffId` INTEGER NULL,
+    `providerName` VARCHAR(191) NULL,
+    `tariffName` VARCHAR(191) NULL,
+    `customerNumberAtProvider` VARCHAR(191) NULL,
+    `contractNumberAtProvider` VARCHAR(191) NULL,
+    `priceFirst12Months` VARCHAR(191) NULL,
+    `priceFrom13Months` VARCHAR(191) NULL,
+    `priceAfter24Months` VARCHAR(191) NULL,
+    `startDate` DATETIME(3) NULL,
+    `endDate` DATETIME(3) NULL,
+    `commission` DOUBLE NULL,
+    `cancellationLetterPath` VARCHAR(191) NULL,
+    `cancellationConfirmationPath` VARCHAR(191) NULL,
+    `cancellationLetterOptionsPath` VARCHAR(191) NULL,
+    `cancellationConfirmationOptionsPath` VARCHAR(191) NULL,
+    `cancellationConfirmationDate` DATETIME(3) NULL,
+    `cancellationConfirmationOptionsDate` DATETIME(3) NULL,
+    `wasSpecialCancellation` BOOLEAN NOT NULL DEFAULT false,
+    `portalUsername` VARCHAR(191) NULL,
+    `portalPasswordEncrypted` VARCHAR(191) NULL,
+    `stressfreiEmailId` INTEGER NULL,
+    `nextReviewDate` DATETIME(3) NULL,
+    `notes` TEXT NULL,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    UNIQUE INDEX `Contract_contractNumber_key`(`contractNumber`),
+    UNIQUE INDEX `Contract_previousContractId_key`(`previousContractId`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `ContractDocument` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `contractId` INTEGER NOT NULL,
+    `documentType` VARCHAR(191) NOT NULL,
+    `documentPath` VARCHAR(191) NOT NULL,
+    `originalName` VARCHAR(191) NOT NULL,
+    `notes` TEXT NULL,
+    `uploadedBy` VARCHAR(191) NULL,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+
+    INDEX `ContractDocument_contractId_idx`(`contractId`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `ContractHistoryEntry` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `contractId` INTEGER NOT NULL,
+    `title` VARCHAR(191) NOT NULL,
+    `description` TEXT NULL,
+    `isAutomatic` BOOLEAN NOT NULL DEFAULT false,
+    `createdBy` VARCHAR(191) NOT NULL,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `ContractTask` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `contractId` INTEGER NOT NULL,
+    `title` VARCHAR(191) NOT NULL,
+    `description` TEXT NULL,
+    `status` ENUM('OPEN', 'COMPLETED') NOT NULL DEFAULT 'OPEN',
+    `visibleInPortal` BOOLEAN NOT NULL DEFAULT false,
+    `createdBy` VARCHAR(191) NULL,
+    `completedAt` DATETIME(3) NULL,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `ContractTaskSubtask` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `taskId` INTEGER NOT NULL,
+    `title` VARCHAR(191) NOT NULL,
+    `status` ENUM('OPEN', 'COMPLETED') NOT NULL DEFAULT 'OPEN',
+    `createdBy` VARCHAR(191) NULL,
+    `completedAt` DATETIME(3) NULL,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `EnergyContractDetails` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `contractId` INTEGER NOT NULL,
+    `meterId` INTEGER NULL,
+    `maloId` VARCHAR(191) NULL,
+    `annualConsumption` DOUBLE NULL,
+    `annualConsumptionKwh` DOUBLE NULL,
+    `basePrice` DOUBLE NULL,
+    `unitPrice` DOUBLE NULL,
+    `unitPriceNt` DOUBLE NULL,
+    `bonus` DOUBLE NULL,
+    `previousProviderName` VARCHAR(191) NULL,
+    `previousCustomerNumber` VARCHAR(191) NULL,
+
+    UNIQUE INDEX `EnergyContractDetails_contractId_key`(`contractId`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `ContractMeter` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `energyContractDetailsId` INTEGER NOT NULL,
+    `meterId` INTEGER NOT NULL,
+    `position` INTEGER NOT NULL DEFAULT 0,
+    `installedAt` DATETIME(3) NULL,
+    `removedAt` DATETIME(3) NULL,
+    `finalReading` DOUBLE NULL,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+
+    INDEX `ContractMeter_energyContractDetailsId_idx`(`energyContractDetailsId`),
+    UNIQUE INDEX `ContractMeter_energyContractDetailsId_meterId_key`(`energyContractDetailsId`, `meterId`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `Invoice` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `energyContractDetailsId` INTEGER NULL,
+    `contractId` INTEGER NULL,
+    `invoiceDate` DATETIME(3) NOT NULL,
+    `invoiceType` ENUM('INTERIM', 'FINAL', 'NOT_AVAILABLE') NOT NULL,
+    `documentPath` VARCHAR(191) NULL,
+    `notes` VARCHAR(191) NULL,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    INDEX `Invoice_energyContractDetailsId_idx`(`energyContractDetailsId`),
+    INDEX `Invoice_contractId_idx`(`contractId`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `InternetContractDetails` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `contractId` INTEGER NOT NULL,
+    `downloadSpeed` INTEGER NULL,
+    `uploadSpeed` INTEGER NULL,
+    `routerModel` VARCHAR(191) NULL,
+    `routerSerialNumber` VARCHAR(191) NULL,
+    `installationDate` DATETIME(3) NULL,
+    `internetUsername` VARCHAR(191) NULL,
+    `internetPasswordEncrypted` VARCHAR(191) NULL,
+    `propertyType` VARCHAR(191) NULL,
+    `propertyLocation` VARCHAR(191) NULL,
+    `connectionLocation` VARCHAR(191) NULL,
+    `homeId` VARCHAR(191) NULL,
+    `activationCode` VARCHAR(191) NULL,
+
+    UNIQUE INDEX `InternetContractDetails_contractId_key`(`contractId`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `PhoneNumber` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `internetContractDetailsId` INTEGER NOT NULL,
+    `phoneNumber` VARCHAR(191) NOT NULL,
+    `isMain` BOOLEAN NOT NULL DEFAULT false,
+    `sipUsername` VARCHAR(191) NULL,
+    `sipPasswordEncrypted` VARCHAR(191) NULL,
+    `sipServer` VARCHAR(191) NULL,
+
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `MobileContractDetails` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `contractId` INTEGER NOT NULL,
+    `requiresMultisim` BOOLEAN NOT NULL DEFAULT false,
+    `dataVolume` DOUBLE NULL,
+    `includedMinutes` INTEGER NULL,
+    `includedSMS` INTEGER NULL,
+    `deviceModel` VARCHAR(191) NULL,
+    `deviceImei` VARCHAR(191) NULL,
+    `phoneNumber` VARCHAR(191) NULL,
+    `simCardNumber` VARCHAR(191) NULL,
+
+    UNIQUE INDEX `MobileContractDetails_contractId_key`(`contractId`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `SimCard` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `mobileDetailsId` INTEGER NOT NULL,
+    `phoneNumber` VARCHAR(191) NULL,
+    `simCardNumber` VARCHAR(191) NULL,
+    `pin` VARCHAR(191) NULL,
+    `puk` VARCHAR(191) NULL,
+    `isMultisim` BOOLEAN NOT NULL DEFAULT false,
+    `isMain` BOOLEAN NOT NULL DEFAULT false,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `TvContractDetails` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `contractId` INTEGER NOT NULL,
+    `receiverModel` VARCHAR(191) NULL,
+    `smartcardNumber` VARCHAR(191) NULL,
+    `package` VARCHAR(191) NULL,
+
+    UNIQUE INDEX `TvContractDetails_contractId_key`(`contractId`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `CarInsuranceDetails` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `contractId` INTEGER NOT NULL,
+    `licensePlate` VARCHAR(191) NULL,
+    `hsn` VARCHAR(191) NULL,
+    `tsn` VARCHAR(191) NULL,
+    `vin` VARCHAR(191) NULL,
+    `vehicleType` VARCHAR(191) NULL,
+    `firstRegistration` DATETIME(3) NULL,
+    `noClaimsClass` VARCHAR(191) NULL,
+    `insuranceType` ENUM('LIABILITY', 'PARTIAL', 'FULL') NOT NULL DEFAULT 'LIABILITY',
+    `deductiblePartial` DOUBLE NULL,
+    `deductibleFull` DOUBLE NULL,
+    `policyNumber` VARCHAR(191) NULL,
+    `previousInsurer` VARCHAR(191) NULL,
+
+    UNIQUE INDEX `CarInsuranceDetails_contractId_key`(`contractId`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `AuditLog` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `userId` INTEGER NULL,
+    `userEmail` VARCHAR(191) NOT NULL,
+    `userRole` TEXT NULL,
+    `customerId` INTEGER NULL,
+    `isCustomerPortal` BOOLEAN NOT NULL DEFAULT false,
+    `action` ENUM('CREATE', 'READ', 'UPDATE', 'DELETE', 'EXPORT', 'ANONYMIZE', 'LOGIN', 'LOGOUT', 'LOGIN_FAILED') NOT NULL,
+    `sensitivity` ENUM('LOW', 'MEDIUM', 'HIGH', 'CRITICAL') NOT NULL DEFAULT 'MEDIUM',
+    `resourceType` VARCHAR(191) NOT NULL,
+    `resourceId` VARCHAR(191) NULL,
+    `resourceLabel` VARCHAR(191) NULL,
+    `endpoint` VARCHAR(191) NOT NULL,
+    `httpMethod` VARCHAR(191) NOT NULL,
+    `ipAddress` VARCHAR(191) NOT NULL,
+    `userAgent` TEXT NULL,
+    `changesBefore` LONGTEXT NULL,
+    `changesAfter` LONGTEXT NULL,
+    `changesEncrypted` BOOLEAN NOT NULL DEFAULT false,
+    `dataSubjectId` INTEGER NULL,
+    `legalBasis` VARCHAR(191) NULL,
+    `success` BOOLEAN NOT NULL DEFAULT true,
+    `errorMessage` TEXT NULL,
+    `durationMs` INTEGER NULL,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `hash` VARCHAR(191) NULL,
+    `previousHash` VARCHAR(191) NULL,
+
+    INDEX `AuditLog_userId_idx`(`userId`),
+    INDEX `AuditLog_customerId_idx`(`customerId`),
+    INDEX `AuditLog_resourceType_resourceId_idx`(`resourceType`, `resourceId`),
+    INDEX `AuditLog_dataSubjectId_idx`(`dataSubjectId`),
+    INDEX `AuditLog_action_idx`(`action`),
+    INDEX `AuditLog_createdAt_idx`(`createdAt`),
+    INDEX `AuditLog_sensitivity_idx`(`sensitivity`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `CustomerConsent` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `customerId` INTEGER NOT NULL,
+    `consentType` ENUM('DATA_PROCESSING', 'MARKETING_EMAIL', 'MARKETING_PHONE', 'DATA_SHARING_PARTNER') NOT NULL,
+    `status` ENUM('GRANTED', 'WITHDRAWN', 'PENDING') NOT NULL DEFAULT 'PENDING',
+    `grantedAt` DATETIME(3) NULL,
+    `withdrawnAt` DATETIME(3) NULL,
+    `source` VARCHAR(191) NULL,
+    `documentPath` VARCHAR(191) NULL,
+    `version` VARCHAR(191) NULL,
+    `ipAddress` VARCHAR(191) NULL,
+    `createdBy` VARCHAR(191) NOT NULL,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    INDEX `CustomerConsent_customerId_idx`(`customerId`),
+    INDEX `CustomerConsent_consentType_idx`(`consentType`),
+    INDEX `CustomerConsent_status_idx`(`status`),
+    UNIQUE INDEX `CustomerConsent_customerId_consentType_key`(`customerId`, `consentType`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `DataDeletionRequest` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `customerId` INTEGER NOT NULL,
+    `status` ENUM('PENDING', 'IN_PROGRESS', 'COMPLETED', 'PARTIALLY_COMPLETED', 'REJECTED') NOT NULL DEFAULT 'PENDING',
+    `requestedAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `requestSource` VARCHAR(191) NOT NULL,
+    `requestedBy` VARCHAR(191) NOT NULL,
+    `processedAt` DATETIME(3) NULL,
+    `processedBy` VARCHAR(191) NULL,
+    `deletedData` LONGTEXT NULL,
+    `retainedData` LONGTEXT NULL,
+    `retentionReason` TEXT NULL,
+    `proofDocument` VARCHAR(191) NULL,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    INDEX `DataDeletionRequest_customerId_idx`(`customerId`),
+    INDEX `DataDeletionRequest_status_idx`(`status`),
+    INDEX `DataDeletionRequest_requestedAt_idx`(`requestedAt`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `AuditRetentionPolicy` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `resourceType` VARCHAR(191) NOT NULL,
+    `sensitivity` ENUM('LOW', 'MEDIUM', 'HIGH', 'CRITICAL') NULL,
+    `retentionDays` INTEGER NOT NULL,
+    `description` VARCHAR(191) NULL,
+    `legalBasis` VARCHAR(191) NULL,
+    `isActive` BOOLEAN NOT NULL DEFAULT true,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updatedAt` DATETIME(3) NOT NULL,
+
+    UNIQUE INDEX `AuditRetentionPolicy_resourceType_sensitivity_key`(`resourceType`, `sensitivity`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `SecurityEvent` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `type` ENUM('LOGIN_FAILED', 'LOGIN_SUCCESS', 'RATE_LIMIT_HIT', 'ACCESS_DENIED', 'SSRF_BLOCKED', 'PASSWORD_RESET_REQUEST', 'PASSWORD_RESET_CONFIRM', 'LOGOUT', 'TOKEN_REJECTED', 'PERMISSION_CHANGED', 'SUSPICIOUS') NOT NULL,
+    `severity` ENUM('INFO', 'LOW', 'MEDIUM', 'HIGH', 'CRITICAL') NOT NULL,
+    `message` TEXT NOT NULL,
+    `ipAddress` VARCHAR(191) NULL,
+    `userId` INTEGER NULL,
+    `customerId` INTEGER NULL,
+    `userEmail` VARCHAR(191) NULL,
+    `endpoint` VARCHAR(191) NULL,
+    `details` JSON NULL,
+    `alerted` BOOLEAN NOT NULL DEFAULT false,
+    `alertedAt` DATETIME(3) NULL,
+    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+
+    INDEX `SecurityEvent_type_createdAt_idx`(`type`, `createdAt`),
+    INDEX `SecurityEvent_severity_createdAt_idx`(`severity`, `createdAt`),
+    INDEX `SecurityEvent_ipAddress_createdAt_idx`(`ipAddress`, `createdAt`),
+    INDEX `SecurityEvent_alerted_severity_idx`(`alerted`, `severity`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- AddForeignKey
+ALTER TABLE `User` ADD CONSTRAINT `User_customerId_fkey` FOREIGN KEY (`customerId`) REFERENCES `Customer`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `RolePermission` ADD CONSTRAINT `RolePermission_roleId_fkey` FOREIGN KEY (`roleId`) REFERENCES `Role`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `RolePermission` ADD CONSTRAINT `RolePermission_permissionId_fkey` FOREIGN KEY (`permissionId`) REFERENCES `Permission`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `UserRole` ADD CONSTRAINT `UserRole_userId_fkey` FOREIGN KEY (`userId`) REFERENCES `User`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `UserRole` ADD CONSTRAINT `UserRole_roleId_fkey` FOREIGN KEY (`roleId`) REFERENCES `Role`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `CustomerRepresentative` ADD CONSTRAINT `CustomerRepresentative_customerId_fkey` FOREIGN KEY (`customerId`) REFERENCES `Customer`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `CustomerRepresentative` ADD CONSTRAINT `CustomerRepresentative_representativeId_fkey` FOREIGN KEY (`representativeId`) REFERENCES `Customer`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `RepresentativeAuthorization` ADD CONSTRAINT `RepresentativeAuthorization_customerId_fkey` FOREIGN KEY (`customerId`) REFERENCES `Customer`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `RepresentativeAuthorization` ADD CONSTRAINT `RepresentativeAuthorization_representativeId_fkey` FOREIGN KEY (`representativeId`) REFERENCES `Customer`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `Address` ADD CONSTRAINT `Address_customerId_fkey` FOREIGN KEY (`customerId`) REFERENCES `Customer`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `BankCard` ADD CONSTRAINT `BankCard_customerId_fkey` FOREIGN KEY (`customerId`) REFERENCES `Customer`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `IdentityDocument` ADD CONSTRAINT `IdentityDocument_customerId_fkey` FOREIGN KEY (`customerId`) REFERENCES `Customer`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `StressfreiEmail` ADD CONSTRAINT `StressfreiEmail_customerId_fkey` FOREIGN KEY (`customerId`) REFERENCES `Customer`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `CachedEmail` ADD CONSTRAINT `CachedEmail_stressfreiEmailId_fkey` FOREIGN KEY (`stressfreiEmailId`) REFERENCES `StressfreiEmail`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `CachedEmail` ADD CONSTRAINT `CachedEmail_contractId_fkey` FOREIGN KEY (`contractId`) REFERENCES `Contract`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `Meter` ADD CONSTRAINT `Meter_customerId_fkey` FOREIGN KEY (`customerId`) REFERENCES `Customer`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `MeterReading` ADD CONSTRAINT `MeterReading_meterId_fkey` FOREIGN KEY (`meterId`) REFERENCES `Meter`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `Tariff` ADD CONSTRAINT `Tariff_providerId_fkey` FOREIGN KEY (`providerId`) REFERENCES `Provider`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `Contract` ADD CONSTRAINT `Contract_customerId_fkey` FOREIGN KEY (`customerId`) REFERENCES `Customer`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `Contract` ADD CONSTRAINT `Contract_contractCategoryId_fkey` FOREIGN KEY (`contractCategoryId`) REFERENCES `ContractCategory`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `Contract` ADD CONSTRAINT `Contract_addressId_fkey` FOREIGN KEY (`addressId`) REFERENCES `Address`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `Contract` ADD CONSTRAINT `Contract_billingAddressId_fkey` FOREIGN KEY (`billingAddressId`) REFERENCES `Address`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `Contract` ADD CONSTRAINT `Contract_bankCardId_fkey` FOREIGN KEY (`bankCardId`) REFERENCES `BankCard`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `Contract` ADD CONSTRAINT `Contract_identityDocumentId_fkey` FOREIGN KEY (`identityDocumentId`) REFERENCES `IdentityDocument`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `Contract` ADD CONSTRAINT `Contract_salesPlatformId_fkey` FOREIGN KEY (`salesPlatformId`) REFERENCES `SalesPlatform`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `Contract` ADD CONSTRAINT `Contract_cancellationPeriodId_fkey` FOREIGN KEY (`cancellationPeriodId`) REFERENCES `CancellationPeriod`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `Contract` ADD CONSTRAINT `Contract_contractDurationId_fkey` FOREIGN KEY (`contractDurationId`) REFERENCES `ContractDuration`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `Contract` ADD CONSTRAINT `Contract_previousContractId_fkey` FOREIGN KEY (`previousContractId`) REFERENCES `Contract`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `Contract` ADD CONSTRAINT `Contract_previousProviderId_fkey` FOREIGN KEY (`previousProviderId`) REFERENCES `Provider`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `Contract` ADD CONSTRAINT `Contract_providerId_fkey` FOREIGN KEY (`providerId`) REFERENCES `Provider`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `Contract` ADD CONSTRAINT `Contract_tariffId_fkey` FOREIGN KEY (`tariffId`) REFERENCES `Tariff`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `Contract` ADD CONSTRAINT `Contract_stressfreiEmailId_fkey` FOREIGN KEY (`stressfreiEmailId`) REFERENCES `StressfreiEmail`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `ContractDocument` ADD CONSTRAINT `ContractDocument_contractId_fkey` FOREIGN KEY (`contractId`) REFERENCES `Contract`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `ContractHistoryEntry` ADD CONSTRAINT `ContractHistoryEntry_contractId_fkey` FOREIGN KEY (`contractId`) REFERENCES `Contract`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `ContractTask` ADD CONSTRAINT `ContractTask_contractId_fkey` FOREIGN KEY (`contractId`) REFERENCES `Contract`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `ContractTaskSubtask` ADD CONSTRAINT `ContractTaskSubtask_taskId_fkey` FOREIGN KEY (`taskId`) REFERENCES `ContractTask`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `EnergyContractDetails` ADD CONSTRAINT `EnergyContractDetails_contractId_fkey` FOREIGN KEY (`contractId`) REFERENCES `Contract`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `EnergyContractDetails` ADD CONSTRAINT `EnergyContractDetails_meterId_fkey` FOREIGN KEY (`meterId`) REFERENCES `Meter`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `ContractMeter` ADD CONSTRAINT `ContractMeter_energyContractDetailsId_fkey` FOREIGN KEY (`energyContractDetailsId`) REFERENCES `EnergyContractDetails`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `ContractMeter` ADD CONSTRAINT `ContractMeter_meterId_fkey` FOREIGN KEY (`meterId`) REFERENCES `Meter`(`id`) ON DELETE RESTRICT ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `Invoice` ADD CONSTRAINT `Invoice_energyContractDetailsId_fkey` FOREIGN KEY (`energyContractDetailsId`) REFERENCES `EnergyContractDetails`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `Invoice` ADD CONSTRAINT `Invoice_contractId_fkey` FOREIGN KEY (`contractId`) REFERENCES `Contract`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `InternetContractDetails` ADD CONSTRAINT `InternetContractDetails_contractId_fkey` FOREIGN KEY (`contractId`) REFERENCES `Contract`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `PhoneNumber` ADD CONSTRAINT `PhoneNumber_internetContractDetailsId_fkey` FOREIGN KEY (`internetContractDetailsId`) REFERENCES `InternetContractDetails`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `MobileContractDetails` ADD CONSTRAINT `MobileContractDetails_contractId_fkey` FOREIGN KEY (`contractId`) REFERENCES `Contract`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `SimCard` ADD CONSTRAINT `SimCard_mobileDetailsId_fkey` FOREIGN KEY (`mobileDetailsId`) REFERENCES `MobileContractDetails`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `TvContractDetails` ADD CONSTRAINT `TvContractDetails_contractId_fkey` FOREIGN KEY (`contractId`) REFERENCES `Contract`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `CarInsuranceDetails` ADD CONSTRAINT `CarInsuranceDetails_contractId_fkey` FOREIGN KEY (`contractId`) REFERENCES `Contract`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `CustomerConsent` ADD CONSTRAINT `CustomerConsent_customerId_fkey` FOREIGN KEY (`customerId`) REFERENCES `Customer`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
diff --git a/backend/prisma/migrations/20260120162147_init/migration.sql b/backend/prisma/migrations/20260120162147_init/migration.sql
deleted file mode 100644
index 44396e16..00000000
--- a/backend/prisma/migrations/20260120162147_init/migration.sql
+++ /dev/null
@@ -1,354 +0,0 @@
--- CreateTable
-CREATE TABLE `User` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `email` VARCHAR(191) NOT NULL,
-    `password` VARCHAR(191) NOT NULL,
-    `firstName` VARCHAR(191) NOT NULL,
-    `lastName` VARCHAR(191) NOT NULL,
-    `isActive` BOOLEAN NOT NULL DEFAULT true,
-    `customerId` INTEGER NULL,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `updatedAt` DATETIME(3) NOT NULL,
-
-    UNIQUE INDEX `User_email_key`(`email`),
-    UNIQUE INDEX `User_customerId_key`(`customerId`),
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `Role` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `name` VARCHAR(191) NOT NULL,
-    `description` VARCHAR(191) NULL,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `updatedAt` DATETIME(3) NOT NULL,
-
-    UNIQUE INDEX `Role_name_key`(`name`),
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `Permission` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `resource` VARCHAR(191) NOT NULL,
-    `action` VARCHAR(191) NOT NULL,
-
-    UNIQUE INDEX `Permission_resource_action_key`(`resource`, `action`),
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `RolePermission` (
-    `roleId` INTEGER NOT NULL,
-    `permissionId` INTEGER NOT NULL,
-
-    PRIMARY KEY (`roleId`, `permissionId`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `UserRole` (
-    `userId` INTEGER NOT NULL,
-    `roleId` INTEGER NOT NULL,
-
-    PRIMARY KEY (`userId`, `roleId`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `Customer` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `customerNumber` VARCHAR(191) NOT NULL,
-    `type` ENUM('PRIVATE', 'BUSINESS') NOT NULL DEFAULT 'PRIVATE',
-    `salutation` VARCHAR(191) NULL,
-    `firstName` VARCHAR(191) NOT NULL,
-    `lastName` VARCHAR(191) NOT NULL,
-    `companyName` VARCHAR(191) NULL,
-    `email` VARCHAR(191) NULL,
-    `phone` VARCHAR(191) NULL,
-    `mobile` VARCHAR(191) NULL,
-    `taxNumber` VARCHAR(191) NULL,
-    `businessRegistration` TEXT NULL,
-    `commercialRegister` VARCHAR(191) NULL,
-    `notes` TEXT NULL,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `updatedAt` DATETIME(3) NOT NULL,
-
-    UNIQUE INDEX `Customer_customerNumber_key`(`customerNumber`),
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `Address` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `customerId` INTEGER NOT NULL,
-    `type` ENUM('DELIVERY_RESIDENCE', 'BILLING') NOT NULL DEFAULT 'DELIVERY_RESIDENCE',
-    `street` VARCHAR(191) NOT NULL,
-    `houseNumber` VARCHAR(191) NOT NULL,
-    `postalCode` VARCHAR(191) NOT NULL,
-    `city` VARCHAR(191) NOT NULL,
-    `country` VARCHAR(191) NOT NULL DEFAULT 'Deutschland',
-    `isDefault` BOOLEAN NOT NULL DEFAULT false,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `updatedAt` DATETIME(3) NOT NULL,
-
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `BankCard` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `customerId` INTEGER NOT NULL,
-    `accountHolder` VARCHAR(191) NOT NULL,
-    `iban` VARCHAR(191) NOT NULL,
-    `bic` VARCHAR(191) NULL,
-    `bankName` VARCHAR(191) NULL,
-    `expiryDate` DATETIME(3) NULL,
-    `isActive` BOOLEAN NOT NULL DEFAULT true,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `updatedAt` DATETIME(3) NOT NULL,
-
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `IdentityDocument` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `customerId` INTEGER NOT NULL,
-    `type` ENUM('ID_CARD', 'PASSPORT', 'DRIVERS_LICENSE', 'OTHER') NOT NULL DEFAULT 'ID_CARD',
-    `documentNumber` VARCHAR(191) NOT NULL,
-    `issuingAuthority` VARCHAR(191) NULL,
-    `issueDate` DATETIME(3) NULL,
-    `expiryDate` DATETIME(3) NULL,
-    `isActive` BOOLEAN NOT NULL DEFAULT true,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `updatedAt` DATETIME(3) NOT NULL,
-
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `Meter` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `customerId` INTEGER NOT NULL,
-    `meterNumber` VARCHAR(191) NOT NULL,
-    `type` ENUM('ELECTRICITY', 'GAS') NOT NULL,
-    `location` VARCHAR(191) NULL,
-    `isActive` BOOLEAN NOT NULL DEFAULT true,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `updatedAt` DATETIME(3) NOT NULL,
-
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `MeterReading` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `meterId` INTEGER NOT NULL,
-    `readingDate` DATETIME(3) NOT NULL,
-    `value` DOUBLE NOT NULL,
-    `unit` VARCHAR(191) NOT NULL DEFAULT 'kWh',
-    `notes` VARCHAR(191) NULL,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `SalesPlatform` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `name` VARCHAR(191) NOT NULL,
-    `contactInfo` TEXT NULL,
-    `isActive` BOOLEAN NOT NULL DEFAULT true,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `updatedAt` DATETIME(3) NOT NULL,
-
-    UNIQUE INDEX `SalesPlatform_name_key`(`name`),
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `Contract` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `contractNumber` VARCHAR(191) NOT NULL,
-    `customerId` INTEGER NOT NULL,
-    `type` ENUM('ELECTRICITY', 'GAS', 'DSL', 'FIBER', 'MOBILE', 'TV', 'CAR_INSURANCE') NOT NULL,
-    `status` ENUM('DRAFT', 'PENDING', 'ACTIVE', 'CANCELLED', 'EXPIRED') NOT NULL DEFAULT 'DRAFT',
-    `addressId` INTEGER NULL,
-    `bankCardId` INTEGER NULL,
-    `identityDocumentId` INTEGER NULL,
-    `salesPlatformId` INTEGER NULL,
-    `previousContractId` INTEGER NULL,
-    `providerName` VARCHAR(191) NULL,
-    `tariffName` VARCHAR(191) NULL,
-    `customerNumberAtProvider` VARCHAR(191) NULL,
-    `startDate` DATETIME(3) NULL,
-    `endDate` DATETIME(3) NULL,
-    `cancellationPeriod` INTEGER NULL,
-    `commission` DOUBLE NULL,
-    `portalUsername` VARCHAR(191) NULL,
-    `portalPasswordEncrypted` VARCHAR(191) NULL,
-    `notes` TEXT NULL,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `updatedAt` DATETIME(3) NOT NULL,
-
-    UNIQUE INDEX `Contract_contractNumber_key`(`contractNumber`),
-    UNIQUE INDEX `Contract_previousContractId_key`(`previousContractId`),
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `EnergyContractDetails` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `contractId` INTEGER NOT NULL,
-    `meterId` INTEGER NULL,
-    `annualConsumption` DOUBLE NULL,
-    `basePrice` DOUBLE NULL,
-    `unitPrice` DOUBLE NULL,
-    `bonus` DOUBLE NULL,
-    `previousProviderName` VARCHAR(191) NULL,
-    `previousCustomerNumber` VARCHAR(191) NULL,
-
-    UNIQUE INDEX `EnergyContractDetails_contractId_key`(`contractId`),
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `InternetContractDetails` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `contractId` INTEGER NOT NULL,
-    `downloadSpeed` INTEGER NULL,
-    `uploadSpeed` INTEGER NULL,
-    `routerModel` VARCHAR(191) NULL,
-    `routerSerialNumber` VARCHAR(191) NULL,
-    `installationDate` DATETIME(3) NULL,
-
-    UNIQUE INDEX `InternetContractDetails_contractId_key`(`contractId`),
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `PhoneNumber` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `internetContractDetailsId` INTEGER NOT NULL,
-    `phoneNumber` VARCHAR(191) NOT NULL,
-    `isMain` BOOLEAN NOT NULL DEFAULT false,
-
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `MobileContractDetails` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `contractId` INTEGER NOT NULL,
-    `phoneNumber` VARCHAR(191) NULL,
-    `simCardNumber` VARCHAR(191) NULL,
-    `dataVolume` DOUBLE NULL,
-    `includedMinutes` INTEGER NULL,
-    `includedSMS` INTEGER NULL,
-    `deviceModel` VARCHAR(191) NULL,
-    `deviceImei` VARCHAR(191) NULL,
-
-    UNIQUE INDEX `MobileContractDetails_contractId_key`(`contractId`),
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `TvContractDetails` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `contractId` INTEGER NOT NULL,
-    `receiverModel` VARCHAR(191) NULL,
-    `smartcardNumber` VARCHAR(191) NULL,
-    `package` VARCHAR(191) NULL,
-
-    UNIQUE INDEX `TvContractDetails_contractId_key`(`contractId`),
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `CarInsuranceDetails` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `contractId` INTEGER NOT NULL,
-    `licensePlate` VARCHAR(191) NULL,
-    `hsn` VARCHAR(191) NULL,
-    `tsn` VARCHAR(191) NULL,
-    `vin` VARCHAR(191) NULL,
-    `vehicleType` VARCHAR(191) NULL,
-    `firstRegistration` DATETIME(3) NULL,
-    `noClaimsClass` VARCHAR(191) NULL,
-    `insuranceType` ENUM('LIABILITY', 'PARTIAL', 'FULL') NOT NULL DEFAULT 'LIABILITY',
-    `deductiblePartial` DOUBLE NULL,
-    `deductibleFull` DOUBLE NULL,
-    `policyNumber` VARCHAR(191) NULL,
-    `previousInsurer` VARCHAR(191) NULL,
-
-    UNIQUE INDEX `CarInsuranceDetails_contractId_key`(`contractId`),
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- AddForeignKey
-ALTER TABLE `User` ADD CONSTRAINT `User_customerId_fkey` FOREIGN KEY (`customerId`) REFERENCES `Customer`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `RolePermission` ADD CONSTRAINT `RolePermission_roleId_fkey` FOREIGN KEY (`roleId`) REFERENCES `Role`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `RolePermission` ADD CONSTRAINT `RolePermission_permissionId_fkey` FOREIGN KEY (`permissionId`) REFERENCES `Permission`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `UserRole` ADD CONSTRAINT `UserRole_userId_fkey` FOREIGN KEY (`userId`) REFERENCES `User`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `UserRole` ADD CONSTRAINT `UserRole_roleId_fkey` FOREIGN KEY (`roleId`) REFERENCES `Role`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `Address` ADD CONSTRAINT `Address_customerId_fkey` FOREIGN KEY (`customerId`) REFERENCES `Customer`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `BankCard` ADD CONSTRAINT `BankCard_customerId_fkey` FOREIGN KEY (`customerId`) REFERENCES `Customer`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `IdentityDocument` ADD CONSTRAINT `IdentityDocument_customerId_fkey` FOREIGN KEY (`customerId`) REFERENCES `Customer`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `Meter` ADD CONSTRAINT `Meter_customerId_fkey` FOREIGN KEY (`customerId`) REFERENCES `Customer`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `MeterReading` ADD CONSTRAINT `MeterReading_meterId_fkey` FOREIGN KEY (`meterId`) REFERENCES `Meter`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `Contract` ADD CONSTRAINT `Contract_customerId_fkey` FOREIGN KEY (`customerId`) REFERENCES `Customer`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `Contract` ADD CONSTRAINT `Contract_addressId_fkey` FOREIGN KEY (`addressId`) REFERENCES `Address`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `Contract` ADD CONSTRAINT `Contract_bankCardId_fkey` FOREIGN KEY (`bankCardId`) REFERENCES `BankCard`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `Contract` ADD CONSTRAINT `Contract_identityDocumentId_fkey` FOREIGN KEY (`identityDocumentId`) REFERENCES `IdentityDocument`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `Contract` ADD CONSTRAINT `Contract_salesPlatformId_fkey` FOREIGN KEY (`salesPlatformId`) REFERENCES `SalesPlatform`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `Contract` ADD CONSTRAINT `Contract_previousContractId_fkey` FOREIGN KEY (`previousContractId`) REFERENCES `Contract`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `EnergyContractDetails` ADD CONSTRAINT `EnergyContractDetails_contractId_fkey` FOREIGN KEY (`contractId`) REFERENCES `Contract`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `EnergyContractDetails` ADD CONSTRAINT `EnergyContractDetails_meterId_fkey` FOREIGN KEY (`meterId`) REFERENCES `Meter`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `InternetContractDetails` ADD CONSTRAINT `InternetContractDetails_contractId_fkey` FOREIGN KEY (`contractId`) REFERENCES `Contract`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `PhoneNumber` ADD CONSTRAINT `PhoneNumber_internetContractDetailsId_fkey` FOREIGN KEY (`internetContractDetailsId`) REFERENCES `InternetContractDetails`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `MobileContractDetails` ADD CONSTRAINT `MobileContractDetails_contractId_fkey` FOREIGN KEY (`contractId`) REFERENCES `Contract`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `TvContractDetails` ADD CONSTRAINT `TvContractDetails_contractId_fkey` FOREIGN KEY (`contractId`) REFERENCES `Contract`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `CarInsuranceDetails` ADD CONSTRAINT `CarInsuranceDetails_contractId_fkey` FOREIGN KEY (`contractId`) REFERENCES `Contract`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
diff --git a/backend/prisma/migrations/20260120165550_add_document_path/migration.sql b/backend/prisma/migrations/20260120165550_add_document_path/migration.sql
deleted file mode 100644
index bc39744d..00000000
--- a/backend/prisma/migrations/20260120165550_add_document_path/migration.sql
+++ /dev/null
@@ -1,5 +0,0 @@
--- AlterTable
-ALTER TABLE `BankCard` ADD COLUMN `documentPath` VARCHAR(191) NULL;
-
--- AlterTable
-ALTER TABLE `IdentityDocument` ADD COLUMN `documentPath` VARCHAR(191) NULL;
diff --git a/backend/prisma/migrations/20260120174530_add_customer_birthdate/migration.sql b/backend/prisma/migrations/20260120174530_add_customer_birthdate/migration.sql
deleted file mode 100644
index ff14bd58..00000000
--- a/backend/prisma/migrations/20260120174530_add_customer_birthdate/migration.sql
+++ /dev/null
@@ -1,3 +0,0 @@
--- AlterTable
-ALTER TABLE `Customer` ADD COLUMN `birthDate` DATETIME(3) NULL,
-    ADD COLUMN `birthPlace` VARCHAR(191) NULL;
diff --git a/backend/prisma/migrations/20260120182703_add_license_fields/migration.sql b/backend/prisma/migrations/20260120182703_add_license_fields/migration.sql
deleted file mode 100644
index 24fdad8c..00000000
--- a/backend/prisma/migrations/20260120182703_add_license_fields/migration.sql
+++ /dev/null
@@ -1,3 +0,0 @@
--- AlterTable
-ALTER TABLE `IdentityDocument` ADD COLUMN `licenseClasses` VARCHAR(191) NULL,
-    ADD COLUMN `licenseIssueDate` DATETIME(3) NULL;
diff --git a/backend/prisma/migrations/20260120223350_add_company_document/migration.sql b/backend/prisma/migrations/20260120223350_add_company_document/migration.sql
deleted file mode 100644
index d46422e8..00000000
--- a/backend/prisma/migrations/20260120223350_add_company_document/migration.sql
+++ /dev/null
@@ -1,14 +0,0 @@
-/*
-  Warnings:
-
-  - You are about to drop the column `businessRegistration` on the `Customer` table. All the data in the column will be lost.
-  - You are about to drop the column `commercialRegister` on the `Customer` table. All the data in the column will be lost.
-
-*/
--- AlterTable
-ALTER TABLE `Customer` DROP COLUMN `businessRegistration`,
-    DROP COLUMN `commercialRegister`,
-    ADD COLUMN `businessRegistrationPath` VARCHAR(191) NULL,
-    ADD COLUMN `commercialRegisterNumber` VARCHAR(191) NULL,
-    ADD COLUMN `commercialRegisterPath` VARCHAR(191) NULL,
-    ADD COLUMN `foundingDate` DATETIME(3) NULL;
diff --git a/backend/prisma/migrations/20260120230109_add_privacy_policy_price_fields_cancellation_periods/migration.sql b/backend/prisma/migrations/20260120230109_add_privacy_policy_price_fields_cancellation_periods/migration.sql
deleted file mode 100644
index 4743e480..00000000
--- a/backend/prisma/migrations/20260120230109_add_privacy_policy_price_fields_cancellation_periods/migration.sql
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
-  Warnings:
-
-  - You are about to drop the column `cancellationPeriod` on the `Contract` table. All the data in the column will be lost.
-
-*/
--- AlterTable
-ALTER TABLE `Contract` DROP COLUMN `cancellationPeriod`,
-    ADD COLUMN `cancellationPeriodId` INTEGER NULL,
-    ADD COLUMN `priceAfter24Months` VARCHAR(191) NULL,
-    ADD COLUMN `priceFirst12Months` VARCHAR(191) NULL,
-    ADD COLUMN `priceFrom13Months` VARCHAR(191) NULL;
-
--- AlterTable
-ALTER TABLE `Customer` ADD COLUMN `privacyPolicyPath` VARCHAR(191) NULL;
-
--- CreateTable
-CREATE TABLE `CancellationPeriod` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `code` VARCHAR(191) NOT NULL,
-    `description` VARCHAR(191) NOT NULL,
-    `isActive` BOOLEAN NOT NULL DEFAULT true,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `updatedAt` DATETIME(3) NOT NULL,
-
-    UNIQUE INDEX `CancellationPeriod_code_key`(`code`),
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- AddForeignKey
-ALTER TABLE `Contract` ADD CONSTRAINT `Contract_cancellationPeriodId_fkey` FOREIGN KEY (`cancellationPeriodId`) REFERENCES `CancellationPeriod`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
diff --git a/backend/prisma/migrations/20260120231330_add_contract_duration/migration.sql b/backend/prisma/migrations/20260120231330_add_contract_duration/migration.sql
deleted file mode 100644
index e82cc615..00000000
--- a/backend/prisma/migrations/20260120231330_add_contract_duration/migration.sql
+++ /dev/null
@@ -1,18 +0,0 @@
--- AlterTable
-ALTER TABLE `Contract` ADD COLUMN `contractDurationId` INTEGER NULL;
-
--- CreateTable
-CREATE TABLE `ContractDuration` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `code` VARCHAR(191) NOT NULL,
-    `description` VARCHAR(191) NOT NULL,
-    `isActive` BOOLEAN NOT NULL DEFAULT true,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `updatedAt` DATETIME(3) NOT NULL,
-
-    UNIQUE INDEX `ContractDuration_code_key`(`code`),
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- AddForeignKey
-ALTER TABLE `Contract` ADD CONSTRAINT `Contract_contractDurationId_fkey` FOREIGN KEY (`contractDurationId`) REFERENCES `ContractDuration`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
diff --git a/backend/prisma/migrations/20260121000502_add_cancellation_documents_and_fields/migration.sql b/backend/prisma/migrations/20260121000502_add_cancellation_documents_and_fields/migration.sql
deleted file mode 100644
index cab597c3..00000000
--- a/backend/prisma/migrations/20260121000502_add_cancellation_documents_and_fields/migration.sql
+++ /dev/null
@@ -1,8 +0,0 @@
--- AlterTable
-ALTER TABLE `Contract` ADD COLUMN `cancellationConfirmationDate` DATETIME(3) NULL,
-    ADD COLUMN `cancellationConfirmationOptionsDate` DATETIME(3) NULL,
-    ADD COLUMN `cancellationConfirmationOptionsPath` VARCHAR(191) NULL,
-    ADD COLUMN `cancellationConfirmationPath` VARCHAR(191) NULL,
-    ADD COLUMN `cancellationLetterOptionsPath` VARCHAR(191) NULL,
-    ADD COLUMN `cancellationLetterPath` VARCHAR(191) NULL,
-    ADD COLUMN `wasSpecialCancellation` BOOLEAN NOT NULL DEFAULT false;
diff --git a/backend/prisma/migrations/20260121082734_add_provider_tariff/migration.sql b/backend/prisma/migrations/20260121082734_add_provider_tariff/migration.sql
deleted file mode 100644
index 70ae530c..00000000
--- a/backend/prisma/migrations/20260121082734_add_provider_tariff/migration.sql
+++ /dev/null
@@ -1,40 +0,0 @@
--- AlterTable
-ALTER TABLE `Contract` ADD COLUMN `providerId` INTEGER NULL,
-    ADD COLUMN `tariffId` INTEGER NULL;
-
--- CreateTable
-CREATE TABLE `Provider` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `name` VARCHAR(191) NOT NULL,
-    `portalUrl` VARCHAR(191) NULL,
-    `usernameFieldName` VARCHAR(191) NULL,
-    `passwordFieldName` VARCHAR(191) NULL,
-    `isActive` BOOLEAN NOT NULL DEFAULT true,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `updatedAt` DATETIME(3) NOT NULL,
-
-    UNIQUE INDEX `Provider_name_key`(`name`),
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `Tariff` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `providerId` INTEGER NOT NULL,
-    `name` VARCHAR(191) NOT NULL,
-    `isActive` BOOLEAN NOT NULL DEFAULT true,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `updatedAt` DATETIME(3) NOT NULL,
-
-    UNIQUE INDEX `Tariff_providerId_name_key`(`providerId`, `name`),
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- AddForeignKey
-ALTER TABLE `Tariff` ADD CONSTRAINT `Tariff_providerId_fkey` FOREIGN KEY (`providerId`) REFERENCES `Provider`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `Contract` ADD CONSTRAINT `Contract_providerId_fkey` FOREIGN KEY (`providerId`) REFERENCES `Provider`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `Contract` ADD CONSTRAINT `Contract_tariffId_fkey` FOREIGN KEY (`tariffId`) REFERENCES `Tariff`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
diff --git a/backend/prisma/migrations/20260123080428_add_simcards/migration.sql b/backend/prisma/migrations/20260123080428_add_simcards/migration.sql
deleted file mode 100644
index 023c07c4..00000000
--- a/backend/prisma/migrations/20260123080428_add_simcards/migration.sql
+++ /dev/null
@@ -1,21 +0,0 @@
--- AlterTable
-ALTER TABLE `MobileContractDetails` ADD COLUMN `requiresMultisim` BOOLEAN NOT NULL DEFAULT false;
-
--- CreateTable
-CREATE TABLE `SimCard` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `mobileDetailsId` INTEGER NOT NULL,
-    `phoneNumber` VARCHAR(191) NULL,
-    `simCardNumber` VARCHAR(191) NULL,
-    `pin` VARCHAR(191) NULL,
-    `puk` VARCHAR(191) NULL,
-    `isMultisim` BOOLEAN NOT NULL DEFAULT false,
-    `isMain` BOOLEAN NOT NULL DEFAULT false,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `updatedAt` DATETIME(3) NOT NULL,
-
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- AddForeignKey
-ALTER TABLE `SimCard` ADD CONSTRAINT `SimCard_mobileDetailsId_fkey` FOREIGN KEY (`mobileDetailsId`) REFERENCES `MobileContractDetails`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
diff --git a/backend/prisma/migrations/20260123104730_add_contract_categories/migration.sql b/backend/prisma/migrations/20260123104730_add_contract_categories/migration.sql
deleted file mode 100644
index c7fcd7ab..00000000
--- a/backend/prisma/migrations/20260123104730_add_contract_categories/migration.sql
+++ /dev/null
@@ -1,21 +0,0 @@
--- AlterTable
-ALTER TABLE `Contract` ADD COLUMN `contractCategoryId` INTEGER NULL;
-
--- CreateTable
-CREATE TABLE `ContractCategory` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `code` VARCHAR(191) NOT NULL,
-    `name` VARCHAR(191) NOT NULL,
-    `icon` VARCHAR(191) NULL,
-    `color` VARCHAR(191) NULL,
-    `sortOrder` INTEGER NOT NULL DEFAULT 0,
-    `isActive` BOOLEAN NOT NULL DEFAULT true,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `updatedAt` DATETIME(3) NOT NULL,
-
-    UNIQUE INDEX `ContractCategory_code_key`(`code`),
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- AddForeignKey
-ALTER TABLE `Contract` ADD CONSTRAINT `Contract_contractCategoryId_fkey` FOREIGN KEY (`contractCategoryId`) REFERENCES `ContractCategory`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
diff --git a/backend/prisma/migrations/20260123110457_extend_internet_details/migration.sql b/backend/prisma/migrations/20260123110457_extend_internet_details/migration.sql
deleted file mode 100644
index bec4b654..00000000
--- a/backend/prisma/migrations/20260123110457_extend_internet_details/migration.sql
+++ /dev/null
@@ -1,13 +0,0 @@
--- AlterTable
-ALTER TABLE `Contract` MODIFY `type` ENUM('ELECTRICITY', 'GAS', 'DSL', 'CABLE', 'FIBER', 'MOBILE', 'TV', 'CAR_INSURANCE') NOT NULL;
-
--- AlterTable
-ALTER TABLE `InternetContractDetails` ADD COLUMN `activationCode` VARCHAR(191) NULL,
-    ADD COLUMN `homeId` VARCHAR(191) NULL,
-    ADD COLUMN `internetPasswordEncrypted` VARCHAR(191) NULL,
-    ADD COLUMN `internetUsername` VARCHAR(191) NULL;
-
--- AlterTable
-ALTER TABLE `PhoneNumber` ADD COLUMN `sipPasswordEncrypted` VARCHAR(191) NULL,
-    ADD COLUMN `sipServer` VARCHAR(191) NULL,
-    ADD COLUMN `sipUsername` VARCHAR(191) NULL;
diff --git a/backend/prisma/migrations/20260130231219_add_email_trash_fields/migration.sql b/backend/prisma/migrations/20260130231219_add_email_trash_fields/migration.sql
deleted file mode 100644
index 0ee61b34..00000000
--- a/backend/prisma/migrations/20260130231219_add_email_trash_fields/migration.sql
+++ /dev/null
@@ -1,180 +0,0 @@
-/*
-  Warnings:
-
-  - A unique constraint covering the columns `[portalEmail]` on the table `Customer` will be added. If there are existing duplicate values, this will fail.
-
-*/
--- AlterTable
-ALTER TABLE `Contract` ADD COLUMN `stressfreiEmailId` INTEGER NULL,
-    MODIFY `status` ENUM('DRAFT', 'PENDING', 'ACTIVE', 'CANCELLED', 'EXPIRED', 'DEACTIVATED') NOT NULL DEFAULT 'DRAFT';
-
--- AlterTable
-ALTER TABLE `Customer` ADD COLUMN `portalEmail` VARCHAR(191) NULL,
-    ADD COLUMN `portalEnabled` BOOLEAN NOT NULL DEFAULT false,
-    ADD COLUMN `portalLastLogin` DATETIME(3) NULL,
-    ADD COLUMN `portalPasswordEncrypted` VARCHAR(191) NULL,
-    ADD COLUMN `portalPasswordHash` VARCHAR(191) NULL;
-
--- CreateTable
-CREATE TABLE `AppSetting` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `key` VARCHAR(191) NOT NULL,
-    `value` TEXT NOT NULL,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `updatedAt` DATETIME(3) NOT NULL,
-
-    UNIQUE INDEX `AppSetting_key_key`(`key`),
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `CustomerRepresentative` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `customerId` INTEGER NOT NULL,
-    `representativeId` INTEGER NOT NULL,
-    `notes` VARCHAR(191) NULL,
-    `isActive` BOOLEAN NOT NULL DEFAULT true,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `updatedAt` DATETIME(3) NOT NULL,
-
-    UNIQUE INDEX `CustomerRepresentative_customerId_representativeId_key`(`customerId`, `representativeId`),
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `EmailProviderConfig` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `name` VARCHAR(191) NOT NULL,
-    `type` ENUM('PLESK', 'CPANEL', 'DIRECTADMIN') NOT NULL,
-    `apiUrl` VARCHAR(191) NOT NULL,
-    `apiKey` VARCHAR(191) NULL,
-    `username` VARCHAR(191) NULL,
-    `passwordEncrypted` VARCHAR(191) NULL,
-    `domain` VARCHAR(191) NOT NULL,
-    `defaultForwardEmail` VARCHAR(191) NULL,
-    `imapServer` VARCHAR(191) NULL,
-    `imapPort` INTEGER NULL DEFAULT 993,
-    `smtpServer` VARCHAR(191) NULL,
-    `smtpPort` INTEGER NULL DEFAULT 465,
-    `imapEncryption` ENUM('SSL', 'STARTTLS', 'NONE') NOT NULL DEFAULT 'SSL',
-    `smtpEncryption` ENUM('SSL', 'STARTTLS', 'NONE') NOT NULL DEFAULT 'SSL',
-    `allowSelfSignedCerts` BOOLEAN NOT NULL DEFAULT false,
-    `isActive` BOOLEAN NOT NULL DEFAULT true,
-    `isDefault` BOOLEAN NOT NULL DEFAULT false,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `updatedAt` DATETIME(3) NOT NULL,
-
-    UNIQUE INDEX `EmailProviderConfig_name_key`(`name`),
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `StressfreiEmail` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `customerId` INTEGER NOT NULL,
-    `email` VARCHAR(191) NOT NULL,
-    `platform` VARCHAR(191) NULL,
-    `notes` TEXT NULL,
-    `isActive` BOOLEAN NOT NULL DEFAULT true,
-    `isProvisioned` BOOLEAN NOT NULL DEFAULT false,
-    `provisionedAt` DATETIME(3) NULL,
-    `provisionError` TEXT NULL,
-    `hasMailbox` BOOLEAN NOT NULL DEFAULT false,
-    `emailPasswordEncrypted` VARCHAR(191) NULL,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `updatedAt` DATETIME(3) NOT NULL,
-
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `CachedEmail` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `stressfreiEmailId` INTEGER NOT NULL,
-    `folder` ENUM('INBOX', 'SENT') NOT NULL DEFAULT 'INBOX',
-    `messageId` VARCHAR(191) NOT NULL,
-    `uid` INTEGER NOT NULL,
-    `subject` VARCHAR(191) NULL,
-    `fromAddress` VARCHAR(191) NOT NULL,
-    `fromName` VARCHAR(191) NULL,
-    `toAddresses` TEXT NOT NULL,
-    `ccAddresses` TEXT NULL,
-    `receivedAt` DATETIME(3) NOT NULL,
-    `textBody` LONGTEXT NULL,
-    `htmlBody` LONGTEXT NULL,
-    `hasAttachments` BOOLEAN NOT NULL DEFAULT false,
-    `attachmentNames` TEXT NULL,
-    `contractId` INTEGER NULL,
-    `assignedAt` DATETIME(3) NULL,
-    `assignedBy` INTEGER NULL,
-    `isAutoAssigned` BOOLEAN NOT NULL DEFAULT false,
-    `isRead` BOOLEAN NOT NULL DEFAULT false,
-    `isStarred` BOOLEAN NOT NULL DEFAULT false,
-    `isDeleted` BOOLEAN NOT NULL DEFAULT false,
-    `deletedAt` DATETIME(3) NULL,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `updatedAt` DATETIME(3) NOT NULL,
-
-    INDEX `CachedEmail_contractId_idx`(`contractId`),
-    INDEX `CachedEmail_stressfreiEmailId_folder_receivedAt_idx`(`stressfreiEmailId`, `folder`, `receivedAt`),
-    INDEX `CachedEmail_stressfreiEmailId_isDeleted_idx`(`stressfreiEmailId`, `isDeleted`),
-    UNIQUE INDEX `CachedEmail_stressfreiEmailId_messageId_folder_key`(`stressfreiEmailId`, `messageId`, `folder`),
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `ContractTask` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `contractId` INTEGER NOT NULL,
-    `title` VARCHAR(191) NOT NULL,
-    `description` TEXT NULL,
-    `status` ENUM('OPEN', 'COMPLETED') NOT NULL DEFAULT 'OPEN',
-    `visibleInPortal` BOOLEAN NOT NULL DEFAULT false,
-    `createdBy` VARCHAR(191) NULL,
-    `completedAt` DATETIME(3) NULL,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `updatedAt` DATETIME(3) NOT NULL,
-
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `ContractTaskSubtask` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `taskId` INTEGER NOT NULL,
-    `title` VARCHAR(191) NOT NULL,
-    `status` ENUM('OPEN', 'COMPLETED') NOT NULL DEFAULT 'OPEN',
-    `createdBy` VARCHAR(191) NULL,
-    `completedAt` DATETIME(3) NULL,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `updatedAt` DATETIME(3) NOT NULL,
-
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateIndex
-CREATE UNIQUE INDEX `Customer_portalEmail_key` ON `Customer`(`portalEmail`);
-
--- AddForeignKey
-ALTER TABLE `CustomerRepresentative` ADD CONSTRAINT `CustomerRepresentative_customerId_fkey` FOREIGN KEY (`customerId`) REFERENCES `Customer`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `CustomerRepresentative` ADD CONSTRAINT `CustomerRepresentative_representativeId_fkey` FOREIGN KEY (`representativeId`) REFERENCES `Customer`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `StressfreiEmail` ADD CONSTRAINT `StressfreiEmail_customerId_fkey` FOREIGN KEY (`customerId`) REFERENCES `Customer`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `CachedEmail` ADD CONSTRAINT `CachedEmail_stressfreiEmailId_fkey` FOREIGN KEY (`stressfreiEmailId`) REFERENCES `StressfreiEmail`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `CachedEmail` ADD CONSTRAINT `CachedEmail_contractId_fkey` FOREIGN KEY (`contractId`) REFERENCES `Contract`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `Contract` ADD CONSTRAINT `Contract_stressfreiEmailId_fkey` FOREIGN KEY (`stressfreiEmailId`) REFERENCES `StressfreiEmail`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `ContractTask` ADD CONSTRAINT `ContractTask_contractId_fkey` FOREIGN KEY (`contractId`) REFERENCES `Contract`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
-
--- AddForeignKey
-ALTER TABLE `ContractTaskSubtask` ADD CONSTRAINT `ContractTaskSubtask_taskId_fkey` FOREIGN KEY (`taskId`) REFERENCES `ContractTask`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
diff --git a/backend/prisma/migrations/20260130233909_add_token_invalidation/migration.sql b/backend/prisma/migrations/20260130233909_add_token_invalidation/migration.sql
deleted file mode 100644
index 064972fb..00000000
--- a/backend/prisma/migrations/20260130233909_add_token_invalidation/migration.sql
+++ /dev/null
@@ -1,2 +0,0 @@
--- AlterTable
-ALTER TABLE `User` ADD COLUMN `tokenInvalidatedAt` DATETIME(3) NULL;
diff --git a/backend/prisma/migrations/20260204074019_add_billing_address/migration.sql b/backend/prisma/migrations/20260204074019_add_billing_address/migration.sql
deleted file mode 100644
index 7cfdd714..00000000
--- a/backend/prisma/migrations/20260204074019_add_billing_address/migration.sql
+++ /dev/null
@@ -1,5 +0,0 @@
--- AlterTable
-ALTER TABLE `Contract` ADD COLUMN `billingAddressId` INTEGER NULL;
-
--- AddForeignKey
-ALTER TABLE `Contract` ADD CONSTRAINT `Contract_billingAddressId_fkey` FOREIGN KEY (`billingAddressId`) REFERENCES `Address`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
diff --git a/backend/prisma/migrations/20260205190935_add_annual_consumption_kwh/migration.sql b/backend/prisma/migrations/20260205190935_add_annual_consumption_kwh/migration.sql
deleted file mode 100644
index 0f9d03b9..00000000
--- a/backend/prisma/migrations/20260205190935_add_annual_consumption_kwh/migration.sql
+++ /dev/null
@@ -1,2 +0,0 @@
--- AlterTable
-ALTER TABLE `EnergyContractDetails` ADD COLUMN `annualConsumptionKwh` DOUBLE NULL;
diff --git a/backend/prisma/migrations/20260205192000_add_malo_id/migration.sql b/backend/prisma/migrations/20260205192000_add_malo_id/migration.sql
deleted file mode 100644
index ba8533c9..00000000
--- a/backend/prisma/migrations/20260205192000_add_malo_id/migration.sql
+++ /dev/null
@@ -1,2 +0,0 @@
--- AlterTable
-ALTER TABLE `EnergyContractDetails` ADD COLUMN `maloId` VARCHAR(191) NULL;
diff --git a/backend/prisma/migrations/20260207220248_add_invoice_model/migration.sql b/backend/prisma/migrations/20260207220248_add_invoice_model/migration.sql
deleted file mode 100644
index fe25d0f0..00000000
--- a/backend/prisma/migrations/20260207220248_add_invoice_model/migration.sql
+++ /dev/null
@@ -1,17 +0,0 @@
--- CreateTable
-CREATE TABLE `Invoice` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `energyContractDetailsId` INTEGER NOT NULL,
-    `invoiceDate` DATETIME(3) NOT NULL,
-    `invoiceType` ENUM('INTERIM', 'FINAL', 'NOT_AVAILABLE') NOT NULL,
-    `documentPath` VARCHAR(191) NULL,
-    `notes` VARCHAR(191) NULL,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `updatedAt` DATETIME(3) NOT NULL,
-
-    INDEX `Invoice_energyContractDetailsId_idx`(`energyContractDetailsId`),
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- AddForeignKey
-ALTER TABLE `Invoice` ADD CONSTRAINT `Invoice_energyContractDetailsId_fkey` FOREIGN KEY (`energyContractDetailsId`) REFERENCES `EnergyContractDetails`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
diff --git a/backend/prisma/migrations/20260208081918_add_next_review_date/migration.sql b/backend/prisma/migrations/20260208081918_add_next_review_date/migration.sql
deleted file mode 100644
index cf6798c0..00000000
--- a/backend/prisma/migrations/20260208081918_add_next_review_date/migration.sql
+++ /dev/null
@@ -1,2 +0,0 @@
--- AlterTable
-ALTER TABLE `Contract` ADD COLUMN `nextReviewDate` DATETIME(3) NULL;
diff --git a/backend/prisma/migrations/20260208130924_add_contract_number_at_provider/migration.sql b/backend/prisma/migrations/20260208130924_add_contract_number_at_provider/migration.sql
deleted file mode 100644
index 6f059cd8..00000000
--- a/backend/prisma/migrations/20260208130924_add_contract_number_at_provider/migration.sql
+++ /dev/null
@@ -1,2 +0,0 @@
--- AlterTable
-ALTER TABLE `Contract` ADD COLUMN `contractNumberAtProvider` VARCHAR(191) NULL;
diff --git a/backend/prisma/migrations/20260208132553_add_previous_provider_fields/migration.sql b/backend/prisma/migrations/20260208132553_add_previous_provider_fields/migration.sql
deleted file mode 100644
index e23255bf..00000000
--- a/backend/prisma/migrations/20260208132553_add_previous_provider_fields/migration.sql
+++ /dev/null
@@ -1,7 +0,0 @@
--- AlterTable
-ALTER TABLE `Contract` ADD COLUMN `previousContractNumber` VARCHAR(191) NULL,
-    ADD COLUMN `previousCustomerNumber` VARCHAR(191) NULL,
-    ADD COLUMN `previousProviderId` INTEGER NULL;
-
--- AddForeignKey
-ALTER TABLE `Contract` ADD CONSTRAINT `Contract_previousProviderId_fkey` FOREIGN KEY (`previousProviderId`) REFERENCES `Provider`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;
diff --git a/backend/prisma/migrations/20260208174811_add_contract_history/migration.sql b/backend/prisma/migrations/20260208174811_add_contract_history/migration.sql
deleted file mode 100644
index 6b6c3a94..00000000
--- a/backend/prisma/migrations/20260208174811_add_contract_history/migration.sql
+++ /dev/null
@@ -1,15 +0,0 @@
--- CreateTable
-CREATE TABLE `ContractHistoryEntry` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `contractId` INTEGER NOT NULL,
-    `title` VARCHAR(191) NOT NULL,
-    `description` TEXT NULL,
-    `isAutomatic` BOOLEAN NOT NULL DEFAULT false,
-    `createdBy` VARCHAR(191) NOT NULL,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- AddForeignKey
-ALTER TABLE `ContractHistoryEntry` ADD CONSTRAINT `ContractHistoryEntry_contractId_fkey` FOREIGN KEY (`contractId`) REFERENCES `Contract`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
diff --git a/backend/prisma/migrations/20260208232823_add_gdpr_audit_logging/migration.sql b/backend/prisma/migrations/20260208232823_add_gdpr_audit_logging/migration.sql
deleted file mode 100644
index 7ab3daec..00000000
--- a/backend/prisma/migrations/20260208232823_add_gdpr_audit_logging/migration.sql
+++ /dev/null
@@ -1,103 +0,0 @@
--- CreateTable
-CREATE TABLE `AuditLog` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `userId` INTEGER NULL,
-    `userEmail` VARCHAR(191) NOT NULL,
-    `userRole` VARCHAR(191) NULL,
-    `customerId` INTEGER NULL,
-    `isCustomerPortal` BOOLEAN NOT NULL DEFAULT false,
-    `action` ENUM('CREATE', 'READ', 'UPDATE', 'DELETE', 'EXPORT', 'ANONYMIZE', 'LOGIN', 'LOGOUT', 'LOGIN_FAILED') NOT NULL,
-    `sensitivity` ENUM('LOW', 'MEDIUM', 'HIGH', 'CRITICAL') NOT NULL DEFAULT 'MEDIUM',
-    `resourceType` VARCHAR(191) NOT NULL,
-    `resourceId` VARCHAR(191) NULL,
-    `resourceLabel` VARCHAR(191) NULL,
-    `endpoint` VARCHAR(191) NOT NULL,
-    `httpMethod` VARCHAR(191) NOT NULL,
-    `ipAddress` VARCHAR(191) NOT NULL,
-    `userAgent` TEXT NULL,
-    `changesBefore` LONGTEXT NULL,
-    `changesAfter` LONGTEXT NULL,
-    `changesEncrypted` BOOLEAN NOT NULL DEFAULT false,
-    `dataSubjectId` INTEGER NULL,
-    `legalBasis` VARCHAR(191) NULL,
-    `success` BOOLEAN NOT NULL DEFAULT true,
-    `errorMessage` TEXT NULL,
-    `durationMs` INTEGER NULL,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `hash` VARCHAR(191) NULL,
-    `previousHash` VARCHAR(191) NULL,
-
-    INDEX `AuditLog_userId_idx`(`userId`),
-    INDEX `AuditLog_customerId_idx`(`customerId`),
-    INDEX `AuditLog_resourceType_resourceId_idx`(`resourceType`, `resourceId`),
-    INDEX `AuditLog_dataSubjectId_idx`(`dataSubjectId`),
-    INDEX `AuditLog_action_idx`(`action`),
-    INDEX `AuditLog_createdAt_idx`(`createdAt`),
-    INDEX `AuditLog_sensitivity_idx`(`sensitivity`),
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `CustomerConsent` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `customerId` INTEGER NOT NULL,
-    `consentType` ENUM('DATA_PROCESSING', 'MARKETING_EMAIL', 'MARKETING_PHONE', 'DATA_SHARING_PARTNER') NOT NULL,
-    `status` ENUM('GRANTED', 'WITHDRAWN', 'PENDING') NOT NULL DEFAULT 'PENDING',
-    `grantedAt` DATETIME(3) NULL,
-    `withdrawnAt` DATETIME(3) NULL,
-    `source` VARCHAR(191) NULL,
-    `documentPath` VARCHAR(191) NULL,
-    `version` VARCHAR(191) NULL,
-    `ipAddress` VARCHAR(191) NULL,
-    `createdBy` VARCHAR(191) NOT NULL,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `updatedAt` DATETIME(3) NOT NULL,
-
-    INDEX `CustomerConsent_customerId_idx`(`customerId`),
-    INDEX `CustomerConsent_consentType_idx`(`consentType`),
-    INDEX `CustomerConsent_status_idx`(`status`),
-    UNIQUE INDEX `CustomerConsent_customerId_consentType_key`(`customerId`, `consentType`),
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `DataDeletionRequest` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `customerId` INTEGER NOT NULL,
-    `status` ENUM('PENDING', 'IN_PROGRESS', 'COMPLETED', 'PARTIALLY_COMPLETED', 'REJECTED') NOT NULL DEFAULT 'PENDING',
-    `requestedAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `requestSource` VARCHAR(191) NOT NULL,
-    `requestedBy` VARCHAR(191) NOT NULL,
-    `processedAt` DATETIME(3) NULL,
-    `processedBy` VARCHAR(191) NULL,
-    `deletedData` LONGTEXT NULL,
-    `retainedData` LONGTEXT NULL,
-    `retentionReason` TEXT NULL,
-    `proofDocument` VARCHAR(191) NULL,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `updatedAt` DATETIME(3) NOT NULL,
-
-    INDEX `DataDeletionRequest_customerId_idx`(`customerId`),
-    INDEX `DataDeletionRequest_status_idx`(`status`),
-    INDEX `DataDeletionRequest_requestedAt_idx`(`requestedAt`),
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- CreateTable
-CREATE TABLE `AuditRetentionPolicy` (
-    `id` INTEGER NOT NULL AUTO_INCREMENT,
-    `resourceType` VARCHAR(191) NOT NULL,
-    `sensitivity` ENUM('LOW', 'MEDIUM', 'HIGH', 'CRITICAL') NULL,
-    `retentionDays` INTEGER NOT NULL,
-    `description` VARCHAR(191) NULL,
-    `legalBasis` VARCHAR(191) NULL,
-    `isActive` BOOLEAN NOT NULL DEFAULT true,
-    `createdAt` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
-    `updatedAt` DATETIME(3) NOT NULL,
-
-    UNIQUE INDEX `AuditRetentionPolicy_resourceType_sensitivity_key`(`resourceType`, `sensitivity`),
-    PRIMARY KEY (`id`)
-) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
-
--- AddForeignKey
-ALTER TABLE `CustomerConsent` ADD CONSTRAINT `CustomerConsent_customerId_fkey` FOREIGN KEY (`customerId`) REFERENCES `Customer`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
diff --git a/backend/prisma/migrations/20260216_add_consent_hash_and_user_messaging/migration.sql b/backend/prisma/migrations/20260216_add_consent_hash_and_user_messaging/migration.sql
deleted file mode 100644
index 22ce299b..00000000
--- a/backend/prisma/migrations/20260216_add_consent_hash_and_user_messaging/migration.sql
+++ /dev/null
@@ -1,10 +0,0 @@
--- AlterTable
-ALTER TABLE `Customer` ADD COLUMN `consentHash` VARCHAR(191) NULL;
-
--- AlterTable
-ALTER TABLE `User` ADD COLUMN `whatsappNumber` VARCHAR(191) NULL,
-    ADD COLUMN `telegramUsername` VARCHAR(191) NULL,
-    ADD COLUMN `signalNumber` VARCHAR(191) NULL;
-
--- CreateIndex
-CREATE UNIQUE INDEX `Customer_consentHash_key` ON `Customer`(`consentHash`);
diff --git a/backend/prisma/migrations/migration_lock.toml b/backend/prisma/migrations/migration_lock.toml
index e5a788a7..9bee74de 100644
--- a/backend/prisma/migrations/migration_lock.toml
+++ b/backend/prisma/migrations/migration_lock.toml
@@ -1,3 +1,3 @@
 # Please do not edit this file manually
 # It should be added in your version-control system (i.e. Git)
-provider = "mysql"
\ No newline at end of file
+provider = "mysql"
diff --git a/docs/todo.md b/docs/todo.md
index b9626fe5..d221d076 100644
--- a/docs/todo.md
+++ b/docs/todo.md
@@ -97,6 +97,22 @@ isolierte Instanz (keine Multi-Tenancy im Code), Provisioning + Abrechnung
 
 ## ✅ Erledigt
 
+- [x] **🗃️ Prisma-Migrations-System (statt `db push`)**
+  - Initial-Migration `0_init` aus aktuellem Schema generiert
+    (`prisma migrate diff --from-empty --to-schema-datamodel`).
+  - 24 alte gedriftete Migrations gelöscht – frischer Start.
+  - `migration_lock.toml` für MySQL hinzugefügt.
+  - Container-Entrypoint umgebaut:
+    - Auto-Baseline-Detection: bestehende DB ohne `_prisma_migrations` →
+      `migrate resolve --applied 0_init` läuft automatisch.
+    - Statt `db push --accept-data-loss` jetzt `migrate deploy` (idempotent,
+      datenerhaltend, keine stillen DROPs mehr).
+  - Neuer npm-Script `schema:sync` (lokal/Dev): legt automatisch eine
+    versionierte Migration mit Zeitstempel-Namen an
+    (`prisma migrate dev --name auto_$(date +%Y%m%d_%H%M%S)`).
+  - Workflow ab jetzt: schema.prisma ändern → `npm run schema:sync` →
+    Migration committen → Push → Container-Restart wendet sie automatisch an.
+
 - [x] **🔄 Automatische Vertrags-Status-Übergänge**
   - Nightly-Cron (02:00 + Catch-up 60s nach Start): alle Verträge mit
     `status=ACTIVE` und `endDate < heute` → `EXPIRED` (mit Audit-Log).