fix: boucle infinie Maximum update depth dans useAutoTagging + toolbar

- use-auto-tagging: onQuotaExceeded via ref stable → n'invalide plus
  useCallback analyzeContent à chaque render parent
- note-editor-context: filteredSuggestions et existingLabelsLower
  stabilisés avec useMemo (était recalculé sans memo → nouvelle ref
  à chaque render → état useMemo state se réexécutait → boucle)
- deepseek.ts: generateTags via generateText (pas generateObject)
  pour éviter response_format:json_schema non supporté

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

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

@@ -211,11 +211,15 @@ export function NoteEditorProvider({ note, readOnly = false, fullPage = false, o
   const [comparisonNotes, setComparisonNotes] = useState<Array<Partial<Note>>>([])
   const [fusionNotes, setFusionNotes] = useState<Array<Partial<Note>>>([])
 
-  const existingLabelsLower = (note.labels || []).map((l) => l.toLowerCase())
-  const filteredSuggestions = suggestions.filter(s => {
+  const existingLabelsLower = useMemo(
+    () => (note.labels || []).map((l) => l.toLowerCase()),
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+    [JSON.stringify(note.labels)]
+  )
+  const filteredSuggestions = useMemo(() => suggestions.filter(s => {
     if (!s || !s.tag) return false
     return !dismissedTags.includes(s.tag) && !existingLabelsLower.includes(s.tag.toLowerCase())
-  })
+  }), [suggestions, dismissedTags, existingLabelsLower])
 
   const colorClasses = NOTE_COLORS[color as NoteColor] || NOTE_COLORS.default