docs: add complete guide, env files, fix docker-compose

- Add GUIDE.md: complete user documentation covering installation,
  Docker deployment, AI providers, MCP server, N8N integration,
  email config, admin panel, env var reference, troubleshooting
- Add mcp-server/.env.example with all MCP-specific variables
- Update .env.docker.example with all 42 environment variables
- Fix docker-compose.yml: parameterize PostgreSQL credentials,
  add missing env vars (CUSTOM_OPENAI, AI_PROVIDER_CHAT,
  ALLOW_REGISTRATION, RESEND_API_KEY)
- Track memento-note/.env.example

memento-note/components/note-editor.tsx

@@ -113,25 +113,25 @@ export function NoteEditor({ note, readOnly = false, onClose }: NoteEditorProps)
   const [comparisonNotes, setComparisonNotes] = useState<Array<Partial<Note>>>([])
   const [fusionNotes, setFusionNotes] = useState<Array<Partial<Note>>>([])
 
-  // Tags rejetés par l'utilisateur pour cette session
+  // Tags dismissed by the user for this session
   const [dismissedTags, setDismissedTags] = useState<string[]>([])
 
   const colorClasses = NOTE_COLORS[color as NoteColor] || NOTE_COLORS.default
 
   const handleSelectGhostTag = async (tag: string) => {
-    // Vérification insensible à la casse
+    // Case-insensitive check
     const tagExists = labels.some(l => l.toLowerCase() === tag.toLowerCase())
     
     if (!tagExists) {
       setLabels(prev => [...prev, tag])
       
-      // Créer le label globalement s'il n'existe pas
+      // Create the label globally if it doesn't exist
       const globalExists = globalLabels.some(l => l.name.toLowerCase() === tag.toLowerCase())
       if (!globalExists) {
         try {
           await addLabel(tag)
         } catch (err) {
-          console.error('Erreur création label auto:', err)
+          console.error('Error creating auto-label:', err)
         }
       }
       toast.success(t('ai.tagAdded', { tag }))
@@ -142,8 +142,8 @@ export function NoteEditor({ note, readOnly = false, onClose }: NoteEditorProps)
     setDismissedTags(prev => [...prev, tag])
   }
 
-  // Filtrer les suggestions pour ne pas afficher celles rejetées par l'utilisateur
-  // ni celles déjà présentes sur la note
+  // Filter suggestions to exclude dismissed ones
+  // and those already present on the note
   const existingLabelsLower = (note.labels || []).map((l) => l.toLowerCase())
   const filteredSuggestions = suggestions.filter(s => {
     if (!s || !s.tag) return false
@@ -241,7 +241,7 @@ export function NoteEditor({ note, readOnly = false, onClose }: NoteEditorProps)
       setTitleSuggestions(data.suggestions || [])
       toast.success(t('ai.titlesGenerated', { count: data.suggestions.length }))
     } catch (error: any) {
-      console.error('Erreur génération titres:', error)
+      console.error('Error generating titles:', error)
       toast.error(error.message || t('ai.titleGenerationFailed'))
     } finally {
       setIsGeneratingTitles(false)
@@ -311,7 +311,7 @@ export function NoteEditor({ note, readOnly = false, onClose }: NoteEditorProps)
         option: data.option
       })
     } catch (error: any) {
-      console.error('Erreur reformulation:', error)
+      console.error('Error reformulating:', error)
       toast.error(error.message || t('ai.reformulationFailed'))
     } finally {
       setIsReformulating(false)
@@ -494,10 +494,10 @@ export function NoteEditor({ note, readOnly = false, onClose }: NoteEditorProps)
         cleanupOrphanedImages(removedImageUrls, note.id).catch(() => {})
       }
 
-      // Rafraîchir les labels globaux pour refléter les suppressions éventuelles (orphans)
+      // Refresh global labels to reflect any deletions (orphans)
       await refreshLabels()
 
-      // Rafraîchir la liste des notes
+      // Refresh the notes list
       triggerRefresh()
 
       onClose()