feat(p8): meeting-studio demo + smoke-calendar; P8 verification green

Task 8.7: apps/meeting-studio (Vite, port 5178) — schedule a meeting, invite
attendees, toggle per-attendee recording consent, generate transcript (BLOCKED
until unanimous consent — KG-14), summarize, see AI summary + action-item inbox.
scripts/smoke-calendar.mjs proves the P8 guarantees end to end: direct schedule,
consent gate BLOCKED→READY (KG-14), summary linked to a P7 ai_artifact, action
items, attendee-visibility exclusion (Scenario 6), meeting_request genesis,
simulated provider sync (idempotent).

P8 verification: 95 tests green, pnpm -r build all packages+demos, boundary
passes and fails on meeting-web->service, smoke-calendar PASS, prior smokes
(realtime/inbox/support/adapter/route/ai) PASS.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

pnpm-lock.yaml

@@ -108,6 +108,37 @@ importers:
         specifier: ^6.0.7
         version: 6.4.3(@types/node@26.0.1)(jiti@2.7.0)(terser@5.48.0)
 
+  apps/meeting-studio:
+    dependencies:
+      '@insignia/iios-kernel-client':
+        specifier: workspace:*
+        version: link:../../packages/iios-kernel-client
+      '@insignia/iios-meeting-web':
+        specifier: workspace:*
+        version: link:../../packages/iios-meeting-web
+      react:
+        specifier: ^19.0.0
+        version: 19.2.7
+      react-dom:
+        specifier: ^19.0.0
+        version: 19.2.7(react@19.2.7)
+    devDependencies:
+      '@types/react':
+        specifier: ^19.0.0
+        version: 19.2.17
+      '@types/react-dom':
+        specifier: ^19.0.0
+        version: 19.2.3(@types/react@19.2.17)
+      '@vitejs/plugin-react':
+        specifier: ^4.3.4
+        version: 4.7.0(vite@6.4.3(@types/node@26.0.1)(jiti@2.7.0)(terser@5.48.0))
+      typescript:
+        specifier: ^5.7.3
+        version: 5.9.3
+      vite:
+        specifier: ^6.0.7
+        version: 6.4.3(@types/node@26.0.1)(jiti@2.7.0)(terser@5.48.0)
+
   apps/message-demo:
     dependencies:
       '@insignia/iios-inbox-web':