Edit workspace files directly on web (#2270)

* feat(files): edit workspace files on web

Keep source buffers synchronized with host file changes and require an explicit overwrite or reload when revisions diverge.

* feat(panels): surface and protect modified tabs

Expose tooltip and modification state through the generic panel boundary so tabs can show stable metadata and guard every close route consistently.

* fix(tests): use portable fake timeout handle

* fix(files): harden editor conflict handling

Preserve modified panel state across tab eviction, use precise revisions for optimistic writes, coalesce concurrent file watchers, and localize the editor interface.

* fix(files): close editor concurrency gaps

Coalesce clean reloads, preserve subscriber identities and file permissions, suspend pending saves during close confirmation, and carry precise revisions through file reads.

* test(files): expect read revision metadata

packages/app/src/i18n/resources/fr.ts

@@ -470,6 +470,7 @@ export const fr: TranslationResources = {
     },
     tabs: {
       loading: "Chargement...",
+      modified: "Modifications non enregistrées",
       loadingAgentTitle: "Titre d'agent de chargement",
       emptyPane: "Aucun onglet dans ce volet.",
       fallback: {
@@ -537,6 +538,13 @@ export const fr: TranslationResources = {
         failedToReloadAgent: "Échec du rechargement de l'agent",
       },
       confirmations: {
+        unsavedTitle: "Modifications non enregistrées",
+        unsavedMessage:
+          "Cet onglet contient des modifications non enregistrées. Le fermer supprimera le brouillon.",
+        closeWithoutSaving: "Fermer sans enregistrer",
+        closePaneTitle: "Fermer le volet?",
+        bulkUnsaved:
+          "{{count}} onglet(s) contiennent des modifications non enregistrées. Les fermer supprimera ces brouillons.",
         close: "Fermer",
         cancel: "Annuler",
         archive: "Archive",
@@ -1491,6 +1499,25 @@ export const fr: TranslationResources = {
       binaryPreviewUnavailable: "Aperçu binaire indisponible",
       failedToLoad: "Échec du chargement du fichier",
       failedToLoadPreview: "Échec du chargement de l'aperçu du fichier",
+      editor: {
+        fileSize: "Taille {{size}}",
+        lines: "{{count}} lignes",
+        editorStatus: "État de l’éditeur : {{status}}",
+        unsavedChanges: "Modifications non enregistrées",
+        saving: "Enregistrement...",
+        saveFailed: "Échec de l’enregistrement",
+        changedOnDisk: "Modifié sur le disque",
+        vimMode: "Mode Vim {{mode}}",
+        cursor: "Ligne {{line}}, colonne {{column}}",
+        preview: "Aperçu",
+        source: "Source",
+        unavailableTitle: "Fichier indisponible sur le disque",
+        conflictDescription: "Le contenu local a été conservé. Choisissez la version à garder.",
+        overwrite: "Écraser",
+        reload: "Recharger",
+        reloadTitle: "Recharger depuis le disque ?",
+        reloadMessage: "Vos modifications locales seront perdues.",
+      },
     },
     diff: {
       changesLabel: "Modifications",
@@ -1586,12 +1613,18 @@ export const fr: TranslationResources = {
     sections: {
       general: "Général",
       appearance: "Apparence",
+      editor: "Éditeur",
       shortcuts: "Raccourcis",
       integrations: "Intégrations",
       permissions: "Autorisations",
       diagnostics: "Diagnostic",
       about: "À propos",
     },
+    editor: {
+      title: "Éditeur",
+      vimKeybindings: "Raccourcis Vim",
+      vimHint: "S’applique aux fichiers source sur le web et le bureau.",
+    },
     hostSections: {
       connections: "Relations",
       agents: "Agents",