feat(memory): Tap auf Memory-Bubble oeffnet Detail+Edit-Modal in der App (Etappen 2+3)

Stefans naechste Wunsch-Etappe — komplettes Edit eines Memory-Eintrags
aus der App heraus, inkl. Anhang-Upload, ohne Diagnostic-Browser
auszuklappen.

Backend-Fundament (Phase A):
- Brain bekommt GET /memory/get/{id} fuer Einzel-Lookup mit allen Feldern
- RVS ALLOWED_TYPES um brain_request + brain_response erweitert
- Bridge implementiert generischen RVS-Brain-Proxy:
  payload {requestId, method, path, body|bodyBase64, contentType}
  → ruft Brain-HTTP-API → broadcastet brain_response {requestId,
  status, json|text|base64+contentType}. Damit kann die App
  beliebige Brain-Endpoints ueber RVS adressieren — nicht nur Memory.

App-Service (Phase B):
- services/brainApi.ts: Promise-basierter Client. _send() schickt
  brain_request mit requestId, _ensureListener() filtert die passende
  brain_response. Methoden: getMemory, listMemories, searchText,
  searchSemantic, saveMemory, updateMemory, deleteMemory,
  uploadAttachment (Base64), deleteAttachment, getAttachmentBytes.

App-UI (Phasen C+D):
- components/MemoryDetailModal.tsx: Modal mit zwei Modi.
  - Read: Titel, Type, Category, Tags, voller Content, Anhang-Liste
    (Tap = Bild im Vollbild oder Datei-Info), Stift-Icon → Edit.
  - Edit: Titel/Content/Category/Tags/Pinned editierbar, Save via
    brainApi.updateMemory.
  - DocumentPicker + RNFS.readFile(base64) → uploadAttachment(...).
  - Anhang loeschen, kompletter Memory loeschen (mit Alert-confirm).
- ChatScreen: TouchableOpacity-Wrapper um die memorySaved-Bubble,
  Tap setzt memoryDetailId → Modal oeffnet. Hint im Footer
  "tippen für Details" wenn die Bubble eine ID hat.

Etappen 4 (Notizen-Inbox neben Lupe) + 5 (Memory-Editor in App-
Settings) folgen — diese nutzen die gleiche MemoryDetailModal-
Komponente, sind also schnell aufgesetzt sobald 2+3 verifiziert.

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

android/src/components/MemoryDetailModal.tsx

@@ -0,0 +1,364 @@
+/**
+ * Memory-Detail-Modal — Anzeige + Edit eines einzelnen Memory-Eintrags.
+ *
+ * Zwei Modi:
+ * - read-only: zeigt alle Felder + Anhang-Vorschau (Klick auf Bild = Vollbild)
+ * - edit: Form mit Save/Delete/Anhang-hochladen
+ *
+ * Memory-Daten werden beim Oeffnen aus dem Brain (via brainApi → RVS) frisch
+ * gezogen. Optimistic Updates sind explizit nicht da — der DB-Stand ist die
+ * Truth.
+ */
+
+import React, { useEffect, useState } from 'react';
+import {
+  ActivityIndicator,
+  Alert,
+  Image,
+  Modal,
+  ScrollView,
+  StyleSheet,
+  Switch,
+  Text,
+  TextInput,
+  TouchableOpacity,
+  View,
+} from 'react-native';
+import DocumentPicker, { DocumentPickerResponse } from 'react-native-document-picker';
+import RNFS from 'react-native-fs';
+
+import brainApi, { Memory, MemoryAttachment } from '../services/brainApi';
+
+interface Props {
+  memoryId: string | null;
+  visible: boolean;
+  onClose: () => void;
+  onDeleted?: (id: string) => void;
+}
+
+const TYPE_OPTIONS = [
+  { value: 'identity',     label: 'identity (FEST)' },
+  { value: 'rule',         label: 'rule (FEST)' },
+  { value: 'preference',   label: 'preference (FEST)' },
+  { value: 'tool',         label: 'tool (FEST)' },
+  { value: 'skill',        label: 'skill (FEST)' },
+  { value: 'fact',         label: 'fact (Cold)' },
+  { value: 'conversation', label: 'conversation (Cold)' },
+  { value: 'reminder',     label: 'reminder (Cold)' },
+];
+
+export const MemoryDetailModal: React.FC<Props> = ({ memoryId, visible, onClose, onDeleted }) => {
+  const [memory, setMemory] = useState<Memory | null>(null);
+  const [loading, setLoading] = useState(false);
+  const [editing, setEditing] = useState(false);
+  const [saving, setSaving] = useState(false);
+  const [err, setErr] = useState<string | null>(null);
+  const [busy, setBusy] = useState<string | null>(null);
+
+  // Edit-Felder
+  const [eTitle, setETitle] = useState('');
+  const [eContent, setEContent] = useState('');
+  const [eCategory, setECategory] = useState('');
+  const [eTags, setETags] = useState('');
+  const [ePinned, setEPinned] = useState(false);
+
+  // Bild-Vollbild
+  const [fullscreen, setFullscreen] = useState<string | null>(null);
+
+  // Memory laden beim Oeffnen
+  useEffect(() => {
+    if (!visible || !memoryId) {
+      setMemory(null); setEditing(false); setErr(null); return;
+    }
+    setLoading(true); setErr(null);
+    brainApi.getMemory(memoryId)
+      .then(m => {
+        setMemory(m);
+        setETitle(m.title || '');
+        setEContent(m.content || '');
+        setECategory(m.category || '');
+        setETags((m.tags || []).join(', '));
+        setEPinned(!!m.pinned);
+      })
+      .catch(e => setErr(String(e?.message || e)))
+      .finally(() => setLoading(false));
+  }, [visible, memoryId]);
+
+  const reload = () => {
+    if (!memoryId) return;
+    setLoading(true);
+    brainApi.getMemory(memoryId)
+      .then(m => setMemory(m))
+      .catch(e => setErr(String(e?.message || e)))
+      .finally(() => setLoading(false));
+  };
+
+  const onSave = async () => {
+    if (!memoryId) return;
+    setSaving(true); setErr(null);
+    try {
+      const tags = eTags.split(',').map(t => t.trim()).filter(Boolean);
+      const m = await brainApi.updateMemory(memoryId, {
+        title: eTitle.trim(),
+        content: eContent.trim(),
+        category: eCategory.trim(),
+        tags,
+        pinned: ePinned,
+      });
+      setMemory(m);
+      setEditing(false);
+    } catch (e: any) {
+      setErr(String(e?.message || e));
+    } finally {
+      setSaving(false);
+    }
+  };
+
+  const onDelete = () => {
+    if (!memoryId || !memory) return;
+    Alert.alert(
+      'Memory loeschen?',
+      `"${memory.title}"\n\nWird permanent aus der DB entfernt, inkl. aller Anhaenge.`,
+      [
+        { text: 'Abbrechen', style: 'cancel' },
+        {
+          text: 'Loeschen',
+          style: 'destructive',
+          onPress: async () => {
+            try {
+              await brainApi.deleteMemory(memoryId);
+              if (onDeleted) onDeleted(memoryId);
+              onClose();
+            } catch (e: any) {
+              Alert.alert('Fehler', String(e?.message || e));
+            }
+          },
+        },
+      ],
+    );
+  };
+
+  const onPickAndUpload = async () => {
+    if (!memoryId) return;
+    try {
+      const picked: DocumentPickerResponse[] = await DocumentPicker.pick({
+        type: [DocumentPicker.types.images, DocumentPicker.types.pdf, DocumentPicker.types.allFiles],
+        copyTo: 'cachesDirectory',
+      });
+      for (const f of picked) {
+        setBusy(`Lade ${f.name}…`);
+        // RNFS lesen → base64 → API
+        const localPath = (f.fileCopyUri || f.uri).replace(/^file:\/\//, '');
+        const b64 = await RNFS.readFile(localPath, 'base64');
+        await brainApi.uploadAttachment(memoryId, f.name || 'datei', b64);
+      }
+      setBusy(null);
+      reload();
+    } catch (e: any) {
+      setBusy(null);
+      if (DocumentPicker.isCancel(e)) return;
+      Alert.alert('Upload-Fehler', String(e?.message || e));
+    }
+  };
+
+  const onDeleteAttachment = (att: MemoryAttachment) => {
+    if (!memoryId) return;
+    Alert.alert(
+      'Anhang loeschen?',
+      `"${att.name}"`,
+      [
+        { text: 'Abbrechen', style: 'cancel' },
+        {
+          text: 'Loeschen',
+          style: 'destructive',
+          onPress: async () => {
+            try {
+              const m = await brainApi.deleteAttachment(memoryId, att.name);
+              setMemory(m);
+            } catch (e: any) {
+              Alert.alert('Fehler', String(e?.message || e));
+            }
+          },
+        },
+      ],
+    );
+  };
+
+  const onTapAttachment = async (att: MemoryAttachment) => {
+    if (!memoryId) return;
+    if ((att.mime || '').startsWith('image/')) {
+      try {
+        setBusy('Lade Bild…');
+        const data = await brainApi.getAttachmentBytes(memoryId, att.name);
+        // Temp-File schreiben damit <Image source={uri: file://...}> es zeigen kann
+        const safe = att.name.replace(/[^A-Za-z0-9._-]/g, '_');
+        const localPath = `${RNFS.CachesDirectoryPath}/memory_${memoryId}_${safe}`;
+        await RNFS.writeFile(localPath, data.base64, 'base64');
+        setBusy(null);
+        setFullscreen('file://' + localPath);
+      } catch (e: any) {
+        setBusy(null);
+        Alert.alert('Fehler', String(e?.message || e));
+      }
+    } else {
+      Alert.alert('Anhang', `${att.name}\n${att.mime}\n${att.size} Byte\n\nPfad: ${att.path}`);
+    }
+  };
+
+  return (
+    <Modal visible={visible} animationType="slide" transparent onRequestClose={onClose}>
+      <View style={s.backdrop}>
+        <View style={s.box}>
+          <View style={s.header}>
+            <Text style={s.title}>{editing ? 'Memory bearbeiten' : 'Memory-Detail'}</Text>
+            <TouchableOpacity onPress={onClose} hitSlop={{top:8,bottom:8,left:8,right:8}}>
+              <Text style={s.closeX}>×</Text>
+            </TouchableOpacity>
+          </View>
+
+          <ScrollView style={s.body} contentContainerStyle={{paddingBottom:20}}>
+            {loading ? (
+              <ActivityIndicator color="#0096FF" style={{marginTop:30}} />
+            ) : err && !memory ? (
+              <Text style={s.err}>{err}</Text>
+            ) : memory ? (
+              editing ? (
+                <View>
+                  <Text style={s.label}>Typ</Text>
+                  <Text style={{color:'#888',fontSize:12,marginBottom:8}}>{memory.type} (kann hier nicht geaendert werden)</Text>
+
+                  <Text style={s.label}>Titel</Text>
+                  <TextInput style={s.input} value={eTitle} onChangeText={setETitle} />
+
+                  <Text style={s.label}>Inhalt</Text>
+                  <TextInput
+                    style={[s.input, {minHeight:120, textAlignVertical:'top'}]}
+                    value={eContent}
+                    onChangeText={setEContent}
+                    multiline
+                  />
+
+                  <Text style={s.label}>Kategorie</Text>
+                  <TextInput style={s.input} value={eCategory} onChangeText={setECategory} />
+
+                  <Text style={s.label}>Tags (komma-getrennt)</Text>
+                  <TextInput style={s.input} value={eTags} onChangeText={setETags} />
+
+                  <View style={{flexDirection:'row',alignItems:'center',marginTop:10,gap:8}}>
+                    <Switch value={ePinned} onValueChange={setEPinned} />
+                    <Text style={{color:'#E0E0F0'}}>📌 Pinned (immer im System-Prompt)</Text>
+                  </View>
+
+                  {err ? <Text style={s.err}>{err}</Text> : null}
+
+                  <View style={{flexDirection:'row',gap:8,marginTop:14}}>
+                    <TouchableOpacity style={[s.btn,s.btnSecondary]} onPress={() => setEditing(false)} disabled={saving}>
+                      <Text style={s.btnText}>Abbrechen</Text>
+                    </TouchableOpacity>
+                    <TouchableOpacity style={[s.btn,s.btnPrimary,{flex:1}]} onPress={onSave} disabled={saving}>
+                      <Text style={s.btnText}>{saving ? 'Speichere…' : 'Speichern'}</Text>
+                    </TouchableOpacity>
+                  </View>
+                </View>
+              ) : (
+                <View>
+                  <View style={{flexDirection:'row',alignItems:'flex-start',justifyContent:'space-between'}}>
+                    <Text style={s.bigTitle}>{memory.pinned ? '📌 ' : ''}{memory.title}</Text>
+                    <TouchableOpacity onPress={() => setEditing(true)} style={s.iconBtn}>
+                      <Text style={s.iconBtnText}>✎</Text>
+                    </TouchableOpacity>
+                  </View>
+                  <Text style={s.meta}>
+                    {memory.type}{memory.category ? `  ·  [${memory.category}]` : ''}
+                  </Text>
+                  {(memory.tags || []).length > 0 ? (
+                    <View style={s.tagsRow}>
+                      {memory.tags.map(t => <Text key={t} style={s.tag}>{t}</Text>)}
+                    </View>
+                  ) : null}
+
+                  <Text style={s.contentBlock}>{memory.content}</Text>
+
+                  <Text style={s.sectionHead}>📎 Anhaenge</Text>
+                  {(memory.attachments || []).length === 0 ? (
+                    <Text style={{color:'#555570',fontStyle:'italic',fontSize:12}}>(keine)</Text>
+                  ) : (
+                    (memory.attachments || []).map((a) => {
+                      const isImage = (a.mime || '').startsWith('image/');
+                      return (
+                        <View key={a.name} style={s.attRow}>
+                          <TouchableOpacity style={{flexDirection:'row',alignItems:'center',gap:8,flex:1}} onPress={() => onTapAttachment(a)}>
+                            <Text style={{fontSize:18}}>{isImage ? '🖼️' : '📄'}</Text>
+                            <View style={{flex:1}}>
+                              <Text style={{color:'#E0E0F0',fontSize:12}} numberOfLines={1}>{a.name}</Text>
+                              <Text style={{color:'#555570',fontSize:10}}>{a.mime} · {Math.round(a.size/1024)} KB</Text>
+                            </View>
+                          </TouchableOpacity>
+                          <TouchableOpacity onPress={() => onDeleteAttachment(a)} style={s.attDelete}>
+                            <Text style={{color:'#FF6B6B',fontSize:12}}>🗑</Text>
+                          </TouchableOpacity>
+                        </View>
+                      );
+                    })
+                  )}
+                  <TouchableOpacity style={[s.btn,s.btnSecondary,{marginTop:8}]} onPress={onPickAndUpload}>
+                    <Text style={s.btnText}>⬆ Datei anhaengen</Text>
+                  </TouchableOpacity>
+                  {busy ? <Text style={{color:'#8888AA',fontSize:11,marginTop:4}}>{busy}</Text> : null}
+
+                  <Text style={s.timestamps}>
+                    angelegt: {(memory.created_at || '').slice(0,16).replace('T',' ')}{'\n'}
+                    geaendert: {(memory.updated_at || '').slice(0,16).replace('T',' ')}{'\n'}
+                    id: {memory.id}
+                  </Text>
+
+                  <TouchableOpacity style={[s.btn,s.btnDanger,{marginTop:14}]} onPress={onDelete}>
+                    <Text style={s.btnText}>🗑 Memory komplett loeschen</Text>
+                  </TouchableOpacity>
+                </View>
+              )
+            ) : null}
+          </ScrollView>
+        </View>
+      </View>
+
+      <Modal visible={!!fullscreen} transparent onRequestClose={() => setFullscreen(null)}>
+        <TouchableOpacity style={s.fsBack} onPress={() => setFullscreen(null)}>
+          {fullscreen ? <Image source={{uri:fullscreen}} style={s.fsImg} resizeMode="contain" /> : null}
+        </TouchableOpacity>
+      </Modal>
+    </Modal>
+  );
+};
+
+const s = StyleSheet.create({
+  backdrop: { flex:1, backgroundColor:'rgba(0,0,0,0.75)', justifyContent:'flex-end' },
+  box: { backgroundColor:'#0D0D1A', borderTopLeftRadius:12, borderTopRightRadius:12, maxHeight:'92%' },
+  header: { flexDirection:'row', justifyContent:'space-between', alignItems:'center', padding:14, borderBottomColor:'#1E1E2E', borderBottomWidth:1 },
+  title: { color:'#FFD60A', fontWeight:'bold', fontSize:15 },
+  closeX: { color:'#8888AA', fontSize:24, paddingHorizontal:6 },
+  body: { padding:14 },
+  err: { color:'#FF6B6B', fontSize:12, marginTop:8 },
+  label: { color:'#8888AA', fontSize:11, marginBottom:3, marginTop:8 },
+  input: { backgroundColor:'#080810', borderColor:'#1E1E2E', borderWidth:1, borderRadius:4, padding:8, color:'#E0E0F0', fontSize:13 },
+  bigTitle: { color:'#E0E0F0', fontWeight:'bold', fontSize:16, flex:1, marginRight:6 },
+  iconBtn: { padding:6, backgroundColor:'#1E1E2E', borderRadius:6 },
+  iconBtnText: { color:'#0096FF', fontSize:14 },
+  meta: { color:'#8888AA', fontSize:11, marginTop:4 },
+  tagsRow: { flexDirection:'row', flexWrap:'wrap', gap:4, marginTop:6 },
+  tag: { backgroundColor:'#1E1E2E', color:'#8888AA', fontSize:10, paddingHorizontal:6, paddingVertical:2, borderRadius:8 },
+  contentBlock: { color:'#E0E0F0', fontSize:13, marginTop:12, lineHeight:18 },
+  sectionHead: { color:'#0096FF', fontSize:11, marginTop:14, marginBottom:6, textTransform:'uppercase', letterSpacing:0.5 },
+  attRow: { flexDirection:'row', alignItems:'center', backgroundColor:'#080810', padding:8, borderRadius:6, marginBottom:4, gap:6 },
+  attDelete: { padding:4 },
+  timestamps: { color:'#555570', fontSize:10, marginTop:12, fontFamily:'monospace' },
+  btn: { paddingVertical:10, paddingHorizontal:14, borderRadius:6, alignItems:'center' },
+  btnPrimary: { backgroundColor:'#0096FF' },
+  btnSecondary: { backgroundColor:'#1E1E2E' },
+  btnDanger: { backgroundColor:'#3B1010', borderWidth:1, borderColor:'#FF6B6B' },
+  btnText: { color:'#fff', fontSize:13, fontWeight:'600' },
+  fsBack: { flex:1, backgroundColor:'rgba(0,0,0,0.95)', justifyContent:'center', alignItems:'center' },
+  fsImg: { width:'95%', height:'85%' },
+});
+
+export default MemoryDetailModal;