feat: icon-only toolbar, versioning fixes, history modal, PanelRight repositioning

- Toolbar: remove text labels from all icon buttons (AI, Save, Preview, Convert)
  all buttons now icon-only with title tooltip for accessibility
- Toolbar: reposition PanelRight (info panel toggle) to far right after three-dot menu
- Versioning: decouple getNoteHistory/restoreNoteVersion from global userAISettings.noteHistory
  now checks note.historyEnabled directly — unblocks manual per-note history
- Versioning: add 'Sauvegarder cette version' button in Versions tab of info panel
  calls commitNoteHistory with visual feedback (spinner → success state)
- note-document-info-panel: import commitNoteHistory, add isSavingVersion state
- notes.ts: fix double guard that silently blocked all history operations

.claude/settings.local.json

@@ -24,7 +24,14 @@
       "Bash(do python3 -c \"import json; json.load\\(open\\(''$f''\\)\\)\")",
       "Bash(done)",
       "Bash(npx prisma generate)",
-      "Bash(git add:*)"
+      "Bash(git add:*)",
+      "Bash(npm list *)",
+      "Bash(git commit -m ' *)",
+      "Bash(git push *)",
+      "mcp__zai-mcp-server__analyze_image",
+      "Bash(npx prisma *)",
+      "Bash(xargs -I{} ls {})",
+      "Bash(node_modules/.bin/tsc --noEmit)"
     ]
   }
 }