feat: Editor laedt vorhandene Dateien + manueller Code-Toggle (App + Diagnostic)

Editor zeigte "keine Datei", obwohl ARIA schon Dateien geschrieben hatte — er las
NUR den Live-code_file-Stream, nie den Bestand. Jetzt:
- Brain: GET /projects/<id>/files + /file (liest /shared/projects/<id>/, pfad-sicher,
  512KB-Cap). kind in ProjectUpdateBody (PATCH akzeptiert 'code'|'chat').
- App: brainApi.listProjectFiles/readProjectFile/setProjectKind. CodeEditorTile
  holt beim Oeffnen die vorhandene Dateiliste + laedt Inhalt (Live-Version hat
  Vorrang). ProjectsBrowser-Edit: Code-Projekt-Toggle (spiegelt sofort in
  projectFocus → Cockpit-Panels).
- Diagnostic: </> Code-Toggle je Projektzeile + Code-Badge.

py/node/tsc clean.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

android/src/components/ProjectsBrowser.tsx

@@ -28,6 +28,7 @@ import {
 
 import brainApi, { Project } from '../services/brainApi';
 import rvs from '../services/rvs';
+import projectFocus from '../services/projectFocus';
 
 interface Props {
   /** Optional — wenn als Modal genutzt, sonst inline */
@@ -75,6 +76,7 @@ export const ProjectsBrowser: React.FC<Props> = ({ visible = true, onClose, onAc
   const [editing, setEditing] = useState<Project | null>(null);
   const [editName, setEditName] = useState('');
   const [editDesc, setEditDesc] = useState('');
+  const [editKind, setEditKind] = useState<'code' | 'chat'>('chat');
   // Versteckte Projekte standardmaessig ausblenden; Toggle blendet sie
   // temporaer (gedimmt) ein — zum Ansehen/Auswaehlen oder Wieder-Sichtbarmachen.
   const [showHidden, setShowHidden] = useState(false);
@@ -148,18 +150,25 @@ export const ProjectsBrowser: React.FC<Props> = ({ visible = true, onClose, onAc
     setEditing(p);
     setEditName(p.name);
     setEditDesc(p.description || '');
+    setEditKind(p.kind === 'code' ? 'code' : 'chat');
   }, []);
 
   const saveEdit = useCallback(() => {
     if (!editing) return;
-    const patch: Partial<Pick<Project, 'name' | 'description'>> = {};
+    const patch: Partial<Pick<Project, 'name' | 'description' | 'kind'>> = {};
     if (editName.trim() && editName.trim() !== editing.name) patch.name = editName.trim();
     if (editDesc.trim() !== (editing.description || '')) patch.description = editDesc.trim();
+    const curKind = editing.kind === 'code' ? 'code' : 'chat';
+    if (editKind !== curKind) patch.kind = editKind;
     if (Object.keys(patch).length === 0) { setEditing(null); return; }
     brainApi.updateProject(editing.id, patch)
-      .then(() => { setEditing(null); load(); })
+      .then(() => {
+        // Kind sofort in den Workspace spiegeln (Editor/Desktop-Panels).
+        if (patch.kind) projectFocus.setKind(editing.id, patch.kind);
+        setEditing(null); load();
+      })
       .catch(e => Alert.alert('Fehler', String(e?.message || e)));
-  }, [editing, editName, editDesc, load]);
+  }, [editing, editName, editDesc, editKind, load]);
 
   const endProject = useCallback((p: Project) => {
     Alert.alert(`"${p.name}" beenden?`,
@@ -375,6 +384,21 @@ export const ProjectsBrowser: React.FC<Props> = ({ visible = true, onClose, onAc
               style={[s.input, { height: 70 }]}
               multiline
             />
+            <TouchableOpacity
+              onPress={() => setEditKind(k => (k === 'code' ? 'chat' : 'code'))}
+              style={{ flexDirection: 'row', alignItems: 'center', justifyContent: 'space-between', paddingVertical: 8 }}
+            >
+              <Text style={{ color: '#E0E0F0', fontSize: 14 }}>💻 Code-Projekt{'\n'}
+                <Text style={{ color: '#8888AA', fontSize: 11 }}>zeigt Editor + Desktop im Cockpit</Text>
+              </Text>
+              <View style={{
+                width: 46, height: 26, borderRadius: 13, padding: 3,
+                backgroundColor: editKind === 'code' ? '#0096FF' : '#2A2A3E',
+                alignItems: editKind === 'code' ? 'flex-end' : 'flex-start',
+              }}>
+                <View style={{ width: 20, height: 20, borderRadius: 10, backgroundColor: '#FFFFFF' }} />
+              </View>
+            </TouchableOpacity>
             <View style={{ flexDirection: 'row', gap: 8, marginTop: 12 }}>
               <TouchableOpacity onPress={() => setEditing(null)} style={[s.modalBtn, { backgroundColor: '#2A2A3E' }]}>
                 <Text style={s.modalBtnText}>Abbrechen</Text>

android/src/services/brainApi.ts

@@ -600,14 +600,32 @@ export const brainApi = {
     });
   },
 
-  /** Projekt-Metadaten patchen (name / description / hidden). */
-  updateProject(projectId: string, patch: Partial<Pick<Project, 'name' | 'description' | 'hidden'>>): Promise<Project> {
+  /** Projekt-Metadaten patchen (name / description / hidden / kind). */
+  updateProject(projectId: string, patch: Partial<Pick<Project, 'name' | 'description' | 'hidden' | 'kind'>>): Promise<Project> {
     return _send(`/projects/${encodeURIComponent(projectId)}`, {
       method: 'PATCH',
       body: patch,
     });
   },
 
+  /** Projekt manuell als Code-Projekt / normalen Chat markieren. */
+  setProjectKind(projectId: string, kind: 'code' | 'chat'): Promise<Project> {
+    return _send(`/projects/${encodeURIComponent(projectId)}`, {
+      method: 'PATCH',
+      body: { kind },
+    });
+  },
+
+  /** Vorhandene Code-Dateien eines Projekts auflisten (/shared/projects/<id>/). */
+  listProjectFiles(projectId: string): Promise<{ projectId: string; files: { path: string; size: number }[] }> {
+    return _send(`/projects/${encodeURIComponent(projectId)}/files`);
+  },
+
+  /** Inhalt einer Projekt-Datei laden. */
+  readProjectFile(projectId: string, path: string): Promise<{ projectId: string; path: string; content: string }> {
+    return _send(`/projects/${encodeURIComponent(projectId)}/file?path=${encodeURIComponent(path)}`);
+  },
+
   /** Projekt verstecken / wieder sichtbar machen (bleibt voll nutzbar). */
   setProjectHidden(projectId: string, hidden: boolean): Promise<Project> {
     return _send(`/projects/${encodeURIComponent(projectId)}`, {

android/src/workspace/tiles/CodeEditorTile.tsx

@@ -1,57 +1,97 @@
 /**
  * CodeEditorTile — Live-Code-Editor (WebView, editorHtml.ts).
  *
- * Zeigt live, was ARIA in diesem Projekt schreibt (aus dem codeFile-Spiegel)
- * und laesst Stefan selbst editieren — Aenderungen gehen als code_file_edit
- * zurueck an die Bridge. Datei-Tabs oben zum Umschalten.
+ * Zeigt die Dateien eines Code-Projekts aus /shared/projects/<id>/:
+ *  - beim Oeffnen werden die BEREITS vorhandenen Dateien vom Brain geladen
+ *    (listProjectFiles/readProjectFile) — sonst waere der Editor leer, obwohl
+ *    ARIA schon Dateien geschrieben hat.
+ *  - live schreibt ARIA weiter → code_file-Stream aktualisiert die offene Datei.
+ * Stefan kann selbst editieren → code_file_edit zurueck an die Bridge.
  */
 
-import React, { useCallback, useEffect, useRef, useState } from 'react';
+import React, { useCallback, useEffect, useMemo, useRef, useState } from 'react';
 import { ScrollView, StyleSheet, Text, TouchableOpacity, View } from 'react-native';
 import { WebView, WebViewMessageEvent } from 'react-native-webview';
-import codeFile, { CodeFileState } from '../../services/codeFile';
+import codeFile from '../../services/codeFile';
+import brainApi from '../../services/brainApi';
 import { EDITOR_HTML } from '../assets/editorHtml';
 
 interface Props {
   projectId: string;
 }
 
+function guessLang(path: string): string {
+  const ext = (path.split('.').pop() || '').toLowerCase();
+  const map: Record<string, string> = {
+    js: 'javascript', ts: 'typescript', tsx: 'typescript', py: 'python',
+    c: 'c', h: 'c', cpp: 'cpp', asm: 'asm', s: 'asm', sh: 'shell', bash: 'shell',
+    html: 'html', css: 'css', json: 'json', yaml: 'yaml', yml: 'yaml', md: 'markdown',
+    go: 'go', rs: 'rust', java: 'java', kt: 'kotlin', txt: 'text',
+  };
+  return map[ext] || 'text';
+}
+
 const CodeEditorTile: React.FC<Props> = ({ projectId }) => {
   const webRef = useRef<WebView>(null);
-  const [files, setFiles] = useState<CodeFileState[]>(() => codeFile.getFiles(projectId));
-  const [currentPath, setCurrentPath] = useState<string | null>(files[0]?.path ?? null);
+  // Pfade aus dem Brain (vorhandene Dateien) — mit Live-Dateien gemergt.
+  const [serverPaths, setServerPaths] = useState<string[]>([]);
+  const [currentPath, setCurrentPath] = useState<string | null>(null);
+  const [loadErr, setLoadErr] = useState<string>('');
 
   const readyRef = useRef(false);
   const currentPathRef = useRef<string | null>(currentPath);
   currentPathRef.current = currentPath;
 
+  // Vereinigte, sortierte Dateiliste (Live-Spiegel + Server-Dateien).
+  const files = useMemo(() => {
+    const set = new Set<string>(serverPaths);
+    for (const f of codeFile.getFiles(projectId)) set.add(f.path);
+    return Array.from(set).sort((a, b) => a.localeCompare(b));
+  }, [serverPaths, projectId]);
+
   const sendToWeb = useCallback((payload: Record<string, unknown>) => {
     const js = `window.ariaBridge && window.ariaBridge.onMessage(${JSON.stringify(JSON.stringify(payload))}); true;`;
     webRef.current?.injectJavaScript(js);
   }, []);
 
-  const loadFileIntoEditor = useCallback((path: string | null) => {
+  const loadFileIntoEditor = useCallback(async (path: string | null) => {
     if (!path) { sendToWeb({ cmd: 'setContent', content: '', language: 'text', version: 0 }); return; }
-    const f = codeFile.getFile(projectId, path);
-    sendToWeb({ cmd: 'setContent', content: f?.content ?? '', language: f?.language ?? 'text', version: f?.version ?? 0 });
+    // Live-Version bevorzugen (falls ARIA gerade schreibt), sonst vom Brain holen.
+    const live = codeFile.getFile(projectId, path);
+    if (live) {
+      sendToWeb({ cmd: 'setContent', content: live.content, language: live.language, version: live.version });
+      return;
+    }
+    try {
+      const res = await brainApi.readProjectFile(projectId, path);
+      sendToWeb({ cmd: 'setContent', content: res.content ?? '', language: guessLang(path), version: 0 });
+    } catch (e: any) {
+      sendToWeb({ cmd: 'setContent', content: `// Konnte ${path} nicht laden: ${e?.message || e}`, language: 'text', version: 0 });
+    }
   }, [projectId, sendToWeb]);
 
-  // Projektwechsel: Dateiliste + Auswahl neu.
+  // Projektwechsel: vorhandene Dateien vom Brain laden.
   useEffect(() => {
-    const list = codeFile.getFiles(projectId);
-    setFiles(list);
-    setCurrentPath((prev) => (prev && list.some((f) => f.path === prev) ? prev : list[0]?.path ?? null));
+    let cancelled = false;
+    setLoadErr('');
+    brainApi.listProjectFiles(projectId)
+      .then(res => {
+        if (cancelled) return;
+        const paths = (res.files || []).map(f => f.path);
+        setServerPaths(paths);
+        setCurrentPath(prev => (prev && paths.includes(prev)) ? prev : (paths[0] ?? codeFile.getFiles(projectId)[0]?.path ?? null));
+      })
+      .catch(e => { if (!cancelled) setLoadErr(String(e?.message || e)); });
+    return () => { cancelled = true; };
   }, [projectId]);
 
-  // Eingehende Updates aus dem Spiegel.
+  // Live-Updates aus dem Spiegel.
   useEffect(() => {
     return codeFile.subscribe((u) => {
       if ((u.projectId || '') !== (projectId || '')) return;
-      setFiles(codeFile.getFiles(projectId));
-      // Noch keine Datei gewaehlt → diese oeffnen.
+      setServerPaths(prev => prev.includes(u.path) ? prev : [...prev, u.path]);
       if (!currentPathRef.current) { setCurrentPath(u.path); return; }
-      if (u.path !== currentPathRef.current) return;
-      if (!readyRef.current) return;
+      if (u.path !== currentPathRef.current || !readyRef.current) return;
       if (u.patch) {
         sendToWeb({ cmd: 'applyPatch', from: u.patch.from, to: u.patch.to, insert: u.patch.insert, version: u.version });
       } else {
@@ -60,7 +100,7 @@ const CodeEditorTile: React.FC<Props> = ({ projectId }) => {
     });
   }, [projectId, sendToWeb]);
 
-  // Datei-Auswahl gewechselt → in den Editor laden (falls WebView bereit).
+  // Datei-Auswahl gewechselt → laden (falls WebView bereit).
   useEffect(() => {
     if (readyRef.current) loadFileIntoEditor(currentPath);
   }, [currentPath, loadFileIntoEditor]);
@@ -82,14 +122,14 @@ const CodeEditorTile: React.FC<Props> = ({ projectId }) => {
     <View style={styles.container}>
       <View style={styles.tabsRow}>
         {files.length === 0 ? (
-          <Text style={styles.noFiles}>Noch keine Datei</Text>
+          <Text style={styles.noFiles}>{loadErr ? `Fehler: ${loadErr}` : 'Noch keine Datei in diesem Projekt'}</Text>
         ) : (
           <ScrollView horizontal showsHorizontalScrollIndicator={false} contentContainerStyle={styles.tabs}>
-            {files.map((f) => {
-              const active = f.path === currentPath;
-              const name = f.path.split('/').pop() || f.path;
+            {files.map((path) => {
+              const active = path === currentPath;
+              const name = path.split('/').pop() || path;
               return (
-                <TouchableOpacity key={f.path} onPress={() => setCurrentPath(f.path)} style={[styles.tab, active && styles.tabActive]}>
+                <TouchableOpacity key={path} onPress={() => setCurrentPath(path)} style={[styles.tab, active && styles.tabActive]}>
                   <Text style={[styles.tabText, active && styles.tabTextActive]} numberOfLines={1}>{name}</Text>
                 </TouchableOpacity>
               );