Status LEDs, image model selection, backup restore, provider test, monthly versions

- Sidebar: three status LEDs (server, models, MCP) with an overview popover (/api/status)
- Images: preview stage, purpose-based model choice and reference images
  (Nano Banana Pro edit refines the chosen preview)
- Settings: restore a stored or uploaded backup (staged, applied on restart)
- Provider form: test connection; saving or reloading re-checks the status at once
- opencode Zen/Go: send x-opencode-session with a stable id per conversation
- Releases are named vYYYYMM-NNNNN; scripts/release.sh numbers, tags, builds and publishes
- Fix: backups made in the same second no longer overwrite each other

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

web/src/whatsnew.ts

@@ -1,5 +1,24 @@
-/** "What's new" entries per version (shown once after an update). */
+/**
+ * "What's new" entries per version (shown once after an update). Add new entries
+ * under "unreleased"; scripts/release.sh renames the key to the release version.
+ */
 export const WHATS_NEW: Record<string, { en: string[]; de: string[] }> = {
+  unreleased: {
+    en: [
+      "Status LEDs in the sidebar for server, models and MCP – click them for details",
+      "Images: cheap previews first, then the final image with the best model (Nano Banana Pro refines the chosen preview)",
+      "Settings → Audit: restore a backup (stored or uploaded)",
+      "Provider form: test the connection before saving; saving checks the status right away",
+      "opencode Go works again (session header)",
+    ],
+    de: [
+      "Status-LEDs in der Seitenleiste für Server, Modelle und MCP – ein Klick zeigt die Details",
+      "Bilder: erst günstige Vorschauen, dann das Endbild mit dem besten Modell (Nano Banana Pro verfeinert die gewählte Vorschau)",
+      "Einstellungen → Audit: Backup wiederherstellen (gespeichert oder hochgeladen)",
+      "Provider-Formular: Verbindung vor dem Speichern testen; Speichern prüft den Status sofort",
+      "opencode Go funktioniert wieder (Session-Header)",
+    ],
+  },
   "0.1.0": {
     en: [
       "Terminal client `codecraft`: work locally like with Claude Code – Settings → Account → Terminal client",