Mitra Bestie §1–§3: shell + Undangan + popup + chat polish

Brings the mitra app to figma-bestie parity for Home (§1), Undangan
inbox with Curhat Baru + Perpanjang tabs (§2), and the incoming-popup
+ active-chat flow (§3). Home now lives inside a StatefulShellRoute
with BestieTabBar so Profil + Undangan + Home share one shell.

- Shell: features/shell/ (StatefulShellRoute, BestieTabBar, 3 branches)
- Undangan: features/undangan/ — Curhat Baru reads
  chatRequestProvider.pendingInvites; row Terima delegates accept to
  the notifier and ChatRequestOverlay owns nav (no double-push).
  Perpanjang tab stubbed (empty state) until backend exposes
  pendingExtensionsProvider.
- Profil: features/profile/ — Bestie-styled stub
- Home: refactored to body-only (shell owns chrome)
- Popup: chat_request_overlay + chat_request_notifier updated to
  serve the list rows, not just the modal
- Chat: mitra_chat_screen polish
- Theme: accentAmber tokens for the Perpanjang tab + halo_orb widget
  (loading spinner used by undangan list states)
- Login: replace broken GoRouterState location guard with
  _expectOtpPush flag — was stacking duplicate /otp pages on OTP
  resend (see project-otp-nav-bug-fixed-2026-05-21)

Maestro:
- 17 new flows under .maestro/flows/ts-mitra-{1,2,3}-* covering home
  online/offline variants, undangan empty/populated/tolak states,
  popup curhat-baru → accept → chat → ended banner, plus popup
  dismiss/expire/cancelled edge cases
- 4 new §A OTP flows (07/08/09/10) for invalid/mismatch/expired/cooldown
- Helper scripts: force_mitra_online/offline, force_pairing_timeout,
  force_session_expires_at, delete_mitra_status_row,
  customer_blast_now (js), customer_cancel_latest_blast
- Backend: POST /internal/_test/delete-mitra-status-row supports the
  "fresh mitra with no status row" test setup

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

mitra_app/.maestro/flows/ts-mitra-A-03-success_login_to_home.yaml

@@ -35,7 +35,7 @@ env:
 
 # S3a — request OTP.
 - tapOn:
-    point: "60%, 47%"
+    point: "50%, 53%"
 - inputText: "8200000301"
 - tapOn: "(?s).*kirim kode.*"
 
@@ -56,9 +56,16 @@ env:
 # digit and _submit() fires automatically when the 6th digit lands.
 - inputText: ${output.OTP}
 
-# Assert: home renders. Use any text we know lives on the home/active-sessions
-# tab to confirm we're past auth.
+# Assert: home renders. Stage 2 removed the "Sesi Aktif" / "Riwayat Chat"
+# shortcut tiles — the new BestieHome chrome is greeting + status card +
+# Ganti Status. Asserting "Kamu lagi ONLINE" is the most stable marker
+# that we've made it past auth and the status_notifier loaded.
 - extendedWaitUntil:
     visible:
-      text: "Sesi Aktif|Riwayat Chat"
+      text: "(?s).*Kamu lagi (ONLINE|OFFLINE).*"
     timeout: 15000
+- assertVisible:
+    text: "(?s).*(Ganti Status|Nyalain Status).*"
+
+# Also serves as the Stage 7 design-review visual baseline for the new home.
+- takeScreenshot: ts-mitra-A-03-home-online