fix: comprehensive security, consistency, and dead code cleanup

Security:
- Add auth + file type/size validation to upload API
- Add admin auth to /api/admin/ endpoints
- Add SSRF protection to scrape action
- Whitelist fields in PUT /api/notes/[id] to prevent mass assignment
- Protect /lab, /agents, /chat, /canvas, /notebooks routes in middleware

AI provider fixes:
- Add deepseek/openrouter to factory ProviderType (was silently falling back to ollama)
- Fix title-suggestion.service.ts to use factory instead of hardcoded OpenAI
- Fix getAIProvider→getChatProvider in memory-echo, notebook-summary, agent-executor
- Fix getAIProvider→getTagsProvider in notebook-suggestion, title-suggestions, transform-markdown

Functional bugs:
- Fix ALLOW_REGISTRATION AND→OR logic
- Fix note-editor.tsx passing stale props to useAutoTagging instead of local state
- Fix stale Note.embedding type (migrated to NoteEmbedding table)
- Remove hardcoded SQLite path from prisma.ts

Frontend:
- Add AbortController to useAutoTagging and useTitleSuggestions hooks
- Add error rollback to optimistic UI in note-inline-editor
- Remove stale closure over notebookId/language in useAutoTagging

Cleanup:
- Rename docker-compose from keepnotes→memento
- Remove unused unstable_cache import from config.ts
- Remove dead useUndoRedo hook
- Fix TagSuggestion type (add isNewLabel, reasoning)
- Remove dead AIConfig/AIProviderType types
- Fix ghost-tags unused isEmpty var and as any cast
- Fix note-editor titleSuggestions typed as any[]

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

memento-note/components/note-inline-editor.tsx

@@ -290,26 +290,41 @@ export function NoteInlineEditor({
 
   // ── Quick actions (pin, archive, color, delete) ───────────────────────────
   const handleTogglePin = () => {
+    const prev = note.isPinned
     startTransition(async () => {
-      // Optimitistic update
-      onChange?.(note.id, { isPinned: !note.isPinned })
-      // Call with skipRevalidation to avoid server layout refresh interfering with optimistic state
-      await updateNote(note.id, { isPinned: !note.isPinned }, { skipRevalidation: true })
-      toast.success(note.isPinned ? t('notes.unpinned') || 'Désépinglée' : t('notes.pinned') || 'Épinglée')
+      onChange?.(note.id, { isPinned: !prev })
+      try {
+        await updateNote(note.id, { isPinned: !prev }, { skipRevalidation: true })
+        toast.success(prev ? t('notes.unpinned') || 'Désépinglée' : t('notes.pinned') || 'Épinglée')
+      } catch {
+        onChange?.(note.id, { isPinned: prev })
+        toast.error(t('general.error'))
+      }
     })
   }
 
   const handleToggleArchive = () => {
     startTransition(async () => {
       onArchive?.(note.id)
-      await updateNote(note.id, { isArchived: !note.isArchived }, { skipRevalidation: true })
+      try {
+        await updateNote(note.id, { isArchived: !note.isArchived }, { skipRevalidation: true })
+      } catch {
+        // Cannot easily revert since onArchive removes from list
+        toast.error(t('general.error'))
+      }
     })
   }
 
   const handleColorChange = (color: string) => {
+    const prev = color
     startTransition(async () => {
       onChange?.(note.id, { color })
-      await updateNote(note.id, { color }, { skipRevalidation: true })
+      try {
+        await updateNote(note.id, { color }, { skipRevalidation: true })
+      } catch {
+        onChange?.(note.id, { color: prev })
+        toast.error(t('general.error'))
+      }
     })
   }