feat(brain+ui+app): Triggers — passive Aufweck-Quellen fuer ARIA

ARIA hatte bisher nur ein "User fragt → Brain antwortet"-Modell. Neu:
Trigger laufen passiv im Hintergrund (kein LLM-Call) und wecken ARIA
nur dann auf wenn ein Event tatsaechlich passiert.

Drei Typen, zwei aktuell implementiert:
  timer   — einmalig zu festem ISO-Timestamp ("erinner mich in 10min")
  watcher — Polling alle N Sek einer Condition, feuert bei True mit Throttle
            (z.B. "disk_free_gb < 5", max 1x/h)
  cron    — Platzhalter fuer spaeter

aria-brain/triggers.py
  CRUD auf /data/triggers/<name>.json + /data/triggers/logs/<name>.jsonl.
  create_timer, create_watcher, mark_fired, list_logs, etc.

aria-brain/watcher.py
  Built-in Condition-Variablen: disk_free_gb, disk_free_pct, uptime_sec,
  hour_of_day, day_of_week, rvs_connected, memory_count.
  Sicherer Condition-Parser via ast — Whitelist auf Vergleich + BoolOp +
  Name + Const. Kein eval, kein exec, keine Builtins.

aria-brain/background.py
  Async Loop laeuft alle 30s, sammelt einmalig Variables, geht durch
  Trigger-Liste, _should_fire-Check (Timer: fires_at vergangen / Watcher:
  check_interval + throttle respektiert + condition true). Fire ruft
  agent.chat(prompt, source="trigger") — ARIA bekommt das wie eine
  Push-Nachricht und antwortet via Bridge → RVS → App.

aria-brain/main.py
  /triggers/list, /{name}, /{name}/logs, /timer, /watcher, PATCH, DELETE,
  /triggers/conditions (Variablen + aktuelle Werte). Lifespan-Handler
  startet den Background-Loop beim Container-Start, stoppt beim Shutdown.

aria-brain/agent.py
  Meta-Tools fuer ARIA: trigger_timer, trigger_watcher, trigger_cancel,
  trigger_list. ARIA legt Trigger via Tool-Call selbst an wenn Stefan das
  wuenscht. Side-Channel-Event 'trigger_created' wird in chat-Response
  mitgeschickt damit App + Diagnostic eine Bubble zeigen.

aria-brain/prompts.py
  Neue System-Prompt-Section: Liste aktiver Triggers + verfuegbare
  Condition-Variablen mit aktuellen Werten + Operatoren-Erklaerung.
  ARIA weiss damit immer was es schon gibt und welche Vars sie nutzen kann.

bridge/aria_bridge.py + rvs/server.js
  trigger_created als neuer RVS-Message-Type, Bridge forwarded das aus
  data.events analog zu skill_created.

diagnostic/index.html
  Neuer Top-Tab "Trigger". Liste mit Type-Badges (⏱ TIMER / 👁 WATCHER),
  Status, Fire-Count, last_fired. Aktivieren/Deaktivieren + Löschen pro
  Trigger. "+ Neu"-Modal mit Type-Dropdown, Timer-Minuten oder
  Watcher-Condition + Vars-Anzeige + Throttle. Info-Modal-Eintrag mit
  Erklaerung. Live-Bubble im Chat wenn ARIA selbst einen anlegt.

android/src/screens/ChatScreen.tsx
  trigger_created RVS-Handler → eigene Bubble (gelber Border, "⏰ ARIA
  hat einen Trigger angelegt", Type/Detail/Message/Zeit). ChatMessage
  bekam triggerCreated-Feld. Lokal-only-Schutz beim Server-Sync analog
  zu skill_created.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

diagnostic/index.html

@@ -221,6 +221,7 @@
     <button class="main-nav-btn active" onclick="switchMainTab('main')">Main</button>
     <button class="main-nav-btn" onclick="switchMainTab('brain')">Gehirn</button>
     <button class="main-nav-btn" onclick="switchMainTab('skills')">Skills</button>
+    <button class="main-nav-btn" onclick="switchMainTab('triggers')">Trigger</button>
     <button class="main-nav-btn" onclick="switchMainTab('files')">Dateien</button>
     <button class="main-nav-btn" onclick="switchMainTab('settings')">Einstellungen</button>
   </div>
@@ -899,6 +900,74 @@
     </div>
   </div><!-- /tab-skills -->
 
+  <!-- ══════ TAB: Trigger ══════ -->
+  <div id="tab-triggers" class="main-tab">
+    <div class="settings-section">
+      <div style="display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;">
+        <h2 style="margin:0;">Trigger <button class="info-btn" onclick="showInfo('triggers')" title="Was sind Trigger?">ℹ</button></h2>
+        <div style="display:flex;gap:6px;">
+          <button class="btn secondary" onclick="loadTriggers()" style="padding:4px 10px;font-size:11px;">Aktualisieren</button>
+          <button class="btn" onclick="openTriggerCreate()" style="padding:4px 10px;font-size:11px;">+ Neu</button>
+        </div>
+      </div>
+      <div class="card" style="margin-bottom:8px;">
+        <p style="color:#8888AA;font-size:12px;margin:0;">
+          Trigger sind passive Aufweck-Quellen. Skills sind aktiv (ARIA ruft sie),
+          Trigger sind passiv (System ruft ARIA wenn ein Event passiert). Polling
+          kostet keine Tokens — nur das Feuern verbraucht eine Anfrage.
+        </p>
+      </div>
+      <div class="card">
+        <div id="triggers-list" style="font-size:12px;color:#8888AA;">(Lade...)</div>
+      </div>
+    </div>
+  </div><!-- /tab-triggers -->
+
+  <!-- Trigger-Create Modal -->
+  <div class="modal-overlay" id="trigger-modal">
+    <div class="modal-box" style="max-width:600px;">
+      <div class="modal-header">
+        <h3>Neuer Trigger</h3>
+        <button class="modal-close" onclick="closeTriggerModal()">&times;</button>
+      </div>
+      <div class="modal-body" style="padding:16px;">
+        <label style="display:block;font-size:11px;color:#8888AA;margin-bottom:4px;">Typ</label>
+        <select id="trigger-type" onchange="onTriggerTypeChange()" style="width:100%;background:#0D0D1A;color:#E0E0F0;border:1px solid #1E1E2E;padding:6px;border-radius:4px;font-family:inherit;margin-bottom:10px;">
+          <option value="timer">Timer — einmalig zu festem Zeitpunkt</option>
+          <option value="watcher">Watcher — wenn Bedingung wahr</option>
+        </select>
+        <label style="display:block;font-size:11px;color:#8888AA;margin-bottom:4px;">Name</label>
+        <input type="text" id="trigger-name" placeholder="z.B. pasta, disk-warn" style="width:100%;background:#0D0D1A;color:#E0E0F0;border:1px solid #1E1E2E;padding:6px;border-radius:4px;font-family:inherit;margin-bottom:10px;">
+
+        <!-- Timer-spezifisch -->
+        <div id="trigger-timer-fields">
+          <label style="display:block;font-size:11px;color:#8888AA;margin-bottom:4px;">In wievielen Minuten?</label>
+          <input type="number" id="trigger-timer-minutes" min="1" max="10080" value="10" style="width:100%;background:#0D0D1A;color:#E0E0F0;border:1px solid #1E1E2E;padding:6px;border-radius:4px;font-family:inherit;margin-bottom:10px;">
+        </div>
+
+        <!-- Watcher-spezifisch -->
+        <div id="trigger-watcher-fields" style="display:none;">
+          <label style="display:block;font-size:11px;color:#8888AA;margin-bottom:4px;">Condition (siehe Variablen unten)</label>
+          <input type="text" id="trigger-condition" placeholder="z.B. disk_free_gb < 5" style="width:100%;background:#0D0D1A;color:#E0E0F0;border:1px solid #1E1E2E;padding:6px;border-radius:4px;font-family:monospace;margin-bottom:10px;">
+          <label style="display:block;font-size:11px;color:#8888AA;margin-bottom:4px;">Check-Intervall (Sek, min 30)</label>
+          <input type="number" id="trigger-check-interval" min="30" max="86400" value="300" style="width:100%;background:#0D0D1A;color:#E0E0F0;border:1px solid #1E1E2E;padding:6px;border-radius:4px;font-family:inherit;margin-bottom:10px;">
+          <label style="display:block;font-size:11px;color:#8888AA;margin-bottom:4px;">Throttle zwischen Feuerungen (Sek)</label>
+          <input type="number" id="trigger-throttle" min="0" max="86400" value="3600" style="width:100%;background:#0D0D1A;color:#E0E0F0;border:1px solid #1E1E2E;padding:6px;border-radius:4px;font-family:inherit;margin-bottom:10px;">
+          <div id="trigger-vars-info" style="font-size:10px;color:#555570;line-height:1.6;margin-bottom:10px;"></div>
+        </div>
+
+        <label style="display:block;font-size:11px;color:#8888AA;margin-bottom:4px;">Nachricht</label>
+        <textarea id="trigger-message" rows="3" placeholder="Was soll ARIA sagen wenn der Trigger feuert?" style="width:100%;background:#0D0D1A;color:#E0E0F0;border:1px solid #1E1E2E;padding:6px;border-radius:4px;font-family:inherit;resize:vertical;margin-bottom:10px;"></textarea>
+
+        <div id="trigger-modal-error" style="color:#FF6B6B;font-size:11px;margin-top:4px;display:none;"></div>
+      </div>
+      <div class="modal-footer" style="padding:10px 16px;border-top:1px solid #1E1E2E;display:flex;justify-content:flex-end;gap:8px;">
+        <button class="btn secondary" onclick="closeTriggerModal()">Abbrechen</button>
+        <button class="btn" onclick="saveTrigger()">Anlegen</button>
+      </div>
+    </div>
+  </div>
+
   <!-- Generisches Info-Modal — wird via openInfoModal(title, html) gefuellt -->
   <div class="modal-overlay" id="info-modal">
     <div class="modal-box" style="max-width:640px;">
@@ -1274,6 +1343,14 @@
           }
           return;
         }
+        if (msg.type === 'trigger_created') {
+          addTriggerCreatedBubble(msg.payload || {});
+          // Falls Triggers-Tab offen: refreshen
+          if (document.getElementById('tab-triggers') && document.getElementById('tab-triggers').classList.contains('visible')) {
+            loadTriggers();
+          }
+          return;
+        }
         if (msg.type === 'chat_delta') { return; }
         if (msg.type === 'chat_error') {
           addChat('error', msg.error, 'chat:error');
@@ -1760,6 +1837,37 @@
       }
     }
 
+    /** ARIA hat einen Trigger angelegt — Bubble mit Details. */
+    function addTriggerCreatedBubble(trigger) {
+      const name = trigger.name || '(unbenannt)';
+      const ttype = trigger.type || 'timer';
+      const msg = trigger.message || '';
+      const detail = ttype === 'timer'
+        ? `feuert: <code>${escapeHtml(trigger.fires_at || '?')}</code>`
+        : `wenn: <code>${escapeHtml(trigger.condition || '?')}</code>`;
+      const html = `
+        <div style="font-weight:bold;color:#FFD60A;">⏰ ARIA hat einen Trigger angelegt</div>
+        <div style="margin-top:4px;color:#E0E0F0;">
+          <strong>${escapeHtml(name)}</strong>
+          <span style="color:#8888AA;font-size:11px;margin-left:6px;">(${escapeHtml(ttype)})</span>
+        </div>
+        <div style="color:#8888AA;font-size:11px;margin-top:2px;">${detail}</div>
+        <div style="color:#8888AA;font-size:12px;margin-top:2px;">"${escapeHtml(msg)}"</div>
+        <div class="meta">
+          ARIA-Trigger — ${new Date().toLocaleTimeString('de-DE')} ·
+          <a href="#" onclick="event.preventDefault();switchMainTab('triggers');" style="color:#FFD60A;">im Trigger-Tab ansehen</a>
+        </div>`;
+      for (const box of [chatBox, document.getElementById('chat-box-fs')]) {
+        if (!box) continue;
+        const el = document.createElement('div');
+        el.className = 'chat-msg received';
+        el.style.borderLeft = '3px solid #FFD60A';
+        el.innerHTML = html;
+        box.appendChild(el);
+        box.scrollTop = box.scrollHeight;
+      }
+    }
+
     /** ARIA hat einen Skill erstellt — als auffaellige Bubble anzeigen. */
     function addSkillCreatedBubble(skill) {
       const name = skill.name || '(unbenannt)';
@@ -2674,6 +2782,167 @@
         loadFiles();
       } else if (tab === 'skills') {
         loadSkills();
+      } else if (tab === 'triggers') {
+        loadTriggers();
+      }
+    }
+
+    // ── Triggers-Verwaltung ────────────────────────────────
+    let triggersCache = [];
+
+    async function loadTriggers() {
+      const el = document.getElementById('triggers-list');
+      if (!el) return;
+      try {
+        const r = await fetch('/api/brain/triggers/list');
+        if (!r.ok) throw new Error('HTTP ' + r.status);
+        const d = await r.json();
+        triggersCache = d.triggers || [];
+        renderTriggersList();
+      } catch (e) {
+        el.innerHTML = `🔴 Brain nicht erreichbar (${e.message})`;
+      }
+    }
+
+    function renderTriggersList() {
+      const el = document.getElementById('triggers-list');
+      if (!el) return;
+      if (!triggersCache.length) {
+        el.innerHTML = '<div style="padding:8px;color:#555570;">Keine Trigger vorhanden. Sag ARIA "erinner mich in 5 Minuten" oder leg manuell einen an.</div>';
+        return;
+      }
+      const fmtDate = (iso) => iso ? new Date(iso).toLocaleString('de-DE') : '–';
+      el.innerHTML = triggersCache.map(t => {
+        const active = t.active !== false;
+        const statusBadge = active
+          ? '<span style="background:#34C75922;color:#34C759;padding:1px 6px;border-radius:3px;font-size:10px;">aktiv</span>'
+          : '<span style="background:#55557022;color:#888;padding:1px 6px;border-radius:3px;font-size:10px;">INAKTIV</span>';
+        const typeBadge = t.type === 'timer'
+          ? '<span style="background:#FFD60A22;color:#FFD60A;padding:1px 6px;border-radius:3px;font-size:10px;">⏱ TIMER</span>'
+          : '<span style="background:#0096FF22;color:#0096FF;padding:1px 6px;border-radius:3px;font-size:10px;">👁 WATCHER</span>';
+        const authorBadge = t.author === 'aria'
+          ? '<span style="background:#FFD60A22;color:#FFD60A;padding:1px 6px;border-radius:3px;font-size:10px;">von ARIA</span>'
+          : '';
+        let detailLine = '';
+        if (t.type === 'timer') {
+          detailLine = `feuert: <code>${escapeHtml(t.fires_at || '?')}</code>`;
+        } else if (t.type === 'watcher') {
+          detailLine = `wenn: <code>${escapeHtml(t.condition || '?')}</code> · check alle ${t.check_interval_sec}s · throttle ${t.throttle_sec}s`;
+        }
+        return `
+          <div style="border-bottom:1px solid #1E1E2E;padding:8px 0;">
+            <div style="display:flex;align-items:center;gap:8px;">
+              <span style="flex:1;color:#E0E0F0;font-weight:bold;">${escapeHtml(t.name)}</span>
+              ${statusBadge} ${typeBadge} ${authorBadge}
+              <span style="color:#555570;font-size:10px;">${t.fire_count || 0}× · zuletzt ${fmtDate(t.last_fired_at)}</span>
+            </div>
+            <div style="color:#8888AA;font-size:11px;margin-top:4px;">${detailLine}</div>
+            <div style="color:#888;font-size:12px;margin-top:2px;">"${escapeHtml(t.message || '')}"</div>
+            <div style="margin-top:6px;display:flex;gap:6px;">
+              <button class="btn secondary" onclick="toggleTriggerActive('${escapeHtml(t.name)}', ${!active})" style="padding:2px 10px;font-size:10px;color:#FF9500;border-color:#FF9500;">${active ? '⏸ Deaktivieren' : '▶ Aktivieren'}</button>
+              <button class="btn secondary" onclick="deleteTrigger('${escapeHtml(t.name)}')" style="padding:2px 10px;font-size:10px;color:#FF6B6B;border-color:#FF6B6B;">🗑 Löschen</button>
+            </div>
+          </div>
+        `;
+      }).join('');
+    }
+
+    async function toggleTriggerActive(name, newActive) {
+      try {
+        await fetch('/api/brain/triggers/' + encodeURIComponent(name), {
+          method: 'PATCH',
+          headers: { 'Content-Type': 'application/json' },
+          body: JSON.stringify({ active: newActive }),
+        });
+        loadTriggers();
+      } catch (e) {
+        alert('Toggle fehlgeschlagen: ' + e.message);
+      }
+    }
+
+    async function deleteTrigger(name) {
+      if (!confirm(`Trigger "${name}" wirklich löschen?`)) return;
+      try {
+        await fetch('/api/brain/triggers/' + encodeURIComponent(name), { method: 'DELETE' });
+        loadTriggers();
+      } catch (e) {
+        alert('Löschen fehlgeschlagen: ' + e.message);
+      }
+    }
+
+    function onTriggerTypeChange() {
+      const t = document.getElementById('trigger-type').value;
+      document.getElementById('trigger-timer-fields').style.display = t === 'timer' ? '' : 'none';
+      document.getElementById('trigger-watcher-fields').style.display = t === 'watcher' ? '' : 'none';
+    }
+
+    async function openTriggerCreate() {
+      document.getElementById('trigger-type').value = 'timer';
+      document.getElementById('trigger-name').value = '';
+      document.getElementById('trigger-timer-minutes').value = '10';
+      document.getElementById('trigger-condition').value = '';
+      document.getElementById('trigger-check-interval').value = '300';
+      document.getElementById('trigger-throttle').value = '3600';
+      document.getElementById('trigger-message').value = '';
+      document.getElementById('trigger-modal-error').style.display = 'none';
+      onTriggerTypeChange();
+      // Variablen-Hinweis laden
+      try {
+        const r = await fetch('/api/brain/triggers/conditions');
+        const d = await r.json();
+        const info = document.getElementById('trigger-vars-info');
+        if (info) {
+          info.innerHTML = '<strong>Variablen:</strong> ' + (d.variables || []).map(v =>
+            `<code>${escapeHtml(v.name)}</code> = ${escapeHtml(String(d.current[v.name]))} <span style="color:#444;">(${escapeHtml(v.desc)})</span>`
+          ).join(' · ');
+        }
+      } catch {}
+      document.getElementById('trigger-modal').classList.add('open');
+    }
+
+    function closeTriggerModal() {
+      document.getElementById('trigger-modal').classList.remove('open');
+    }
+
+    async function saveTrigger() {
+      const errEl = document.getElementById('trigger-modal-error');
+      errEl.style.display = 'none';
+      const ttype = document.getElementById('trigger-type').value;
+      const name = document.getElementById('trigger-name').value.trim();
+      const message = document.getElementById('trigger-message').value.trim();
+      if (!name) { errEl.textContent = 'Name fehlt.'; errEl.style.display = 'block'; return; }
+      if (!message) { errEl.textContent = 'Nachricht fehlt.'; errEl.style.display = 'block'; return; }
+      try {
+        let url, body;
+        if (ttype === 'timer') {
+          const mins = parseInt(document.getElementById('trigger-timer-minutes').value, 10) || 10;
+          const firesAt = new Date(Date.now() + mins * 60 * 1000).toISOString();
+          url = '/api/brain/triggers/timer';
+          body = { name, fires_at: firesAt, message, author: 'stefan' };
+        } else {
+          const condition = document.getElementById('trigger-condition').value.trim();
+          if (!condition) { errEl.textContent = 'Condition fehlt.'; errEl.style.display = 'block'; return; }
+          url = '/api/brain/triggers/watcher';
+          body = {
+            name, condition, message, author: 'stefan',
+            check_interval_sec: parseInt(document.getElementById('trigger-check-interval').value, 10) || 300,
+            throttle_sec: parseInt(document.getElementById('trigger-throttle').value, 10) || 3600,
+          };
+        }
+        const r = await fetch(url, {
+          method: 'POST',
+          headers: { 'Content-Type': 'application/json' },
+          body: JSON.stringify(body),
+        });
+        if (!r.ok) {
+          const t = await r.text();
+          throw new Error('HTTP ' + r.status + ': ' + t.slice(0, 200));
+        }
+        closeTriggerModal();
+        loadTriggers();
+      } catch (e) {
+        errEl.textContent = e.message;
+        errEl.style.display = 'block';
       }
     }
 
@@ -3535,6 +3804,20 @@
           <p><strong>Warn-Schwellen:</strong> 5h-Counter wird gelb bei 80%, rot bei 90% des Plan-Limits.</p>
         `,
       },
+      'triggers': {
+        title: 'Trigger — passive Aufweck-Quellen',
+        html: `
+          <p><strong>Skills</strong> sind aktiv (ARIA ruft sie auf).
+          <strong>Trigger</strong> sind passiv: das System ruft ARIA wenn ein Event passiert.</p>
+          <p><strong>Timer:</strong> einmalig zu festem Zeitpunkt. "Erinner mich in 10min" → ARIA legt einen Timer an.</p>
+          <p><strong>Watcher:</strong> pruefen alle paar Minuten eine Bedingung (z.B. <code>disk_free_gb &lt; 5</code>),
+          feuern wenn wahr. Throttle verhindert Spam (Default: max 1× pro Stunde).</p>
+          <p><strong>Token-Effizienz:</strong> das Polling laeuft lokal im Brain-Container ohne Claude-Calls.
+          Erst wenn ein Trigger tatsaechlich feuert, wird ARIA aufgeweckt und antwortet.</p>
+          <p><strong>Wer legt sie an:</strong> entweder du (Diagnostic-Tab + Neu) oder ARIA selbst auf deinen Wunsch
+          im Chat ("sag bescheid wenn Disk unter 5GB").</p>
+        `,
+      },
       'bootstrap': {
         title: 'Bootstrap & Migration — die drei Wege',
         html: `