fix(forge): ne plus ecraser une completion acceptee au Tab (BUG-055)

frontend/editor-poc.html

@@ -575,7 +575,11 @@ body { font-family: var(--sans); background: var(--bg); color: var(--text); heig
       body: JSON.stringify({ content: content })
     }).then(function(r) {
       if (!r.ok) throw new Error(r.status);
-      isDirty = false; originalContent = content;
+      originalContent = content;
+      // BUG-055 — edits typed while the save was in flight are newer than the
+      // disk: stay dirty (and save again) so a later SSE reload can't drop them.
+      if (val() !== content) { scheduleAutoSave(); return; }
+      isDirty = false;
       saveDot.className = 'save-dot ok'; saveLabel.textContent = 'Saved';
     }).catch(function(e) {
       saveDot.className = 'save-dot err'; saveLabel.textContent = 'Erreur';
@@ -1461,6 +1465,11 @@ body { font-family: var(--sans); background: var(--bg); color: var(--text); heig
     // and drop the stale local buffer that would otherwise be autosaved back
     // over the assistant's change.
     if (e.data.type === 'parent-reload') {
+      // #93/BUG-055 — the SSE `index_updated` broadcast is often caused by this
+      // editor's own autosave. Reloading from disk then would clobber edits made
+      // after the save (e.g. a Tab completion accepted in the meantime). Only an
+      // external write (AI assistant) forces the reload past unsaved changes.
+      if (!e.data.force && isDirty) return;
       clearTimeout(saveTimer);
       isDirty = false;
       loadFile();
@@ -1875,6 +1884,7 @@ body { font-family: var(--sans); background: var(--bg); color: var(--text); heig
 
   function acceptGhost() {
     if (!_ghostText) return;
+    if (_ghostTimer) { clearTimeout(_ghostTimer); _ghostTimer = null; }
     var start = ta.selectionStart;
     var before = ta.value.slice(0, start);
     var after = ta.value.slice(start);