add-in: auto-open taskpane phase 1 + final save after versioning + tracking id = fid

- manifest: TaskpaneId -> Office.AutoShowTaskpaneWithDocument (auto-open marker), bump 1.0.0.4
- metadataService.enableAutoOpenTaskpane: tag doc setting (idempotent, best-effort) called from detect() after sign-in
- versionFlow: final saveDocumentVerified at end of both versioning flows (bug: stamped docx never persisted -> reopen showed untracked)
- tracking id now uses ticket fid (TRACKING_ID_SOURCE="fid", rollback by switching to "guid"), resolveTrackingId + authService.getCurrentFid
- WordAddinGate: restore history.pushState/replaceState that office.js nullifies in taskpane (fixes Next App Router crash)

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

components/wordaddin/TaskpaneApp.tsx

@@ -212,6 +212,10 @@ const TaskpaneApp: React.FC<{ demo?: "untracked" | "tracking" }> = ({ demo }) =>
       }
       setUsername(authService.getUsername() ?? null);
 
+      // auto-open (2026-11-05) — sign-in ผ่าน = ไฟล์ e-Court: tag ให้ taskpane เด้งเองครั้งถัดไป
+      // ที่เปิดไฟล์นี้ · fire-and-forget (service กลืน error ทั้งหมด — ไฟล์ทั่วไปไม่มาทางนี้อยู่แล้ว)
+      void metadataService.enableAutoOpenTaskpane();
+
       const tracked = properties.savedByAddIn === metadataService.ADDIN_SIGNATURE_GUID;
       const id = tracked ? properties.documentTrackingId : undefined;
       if (!id) {