feat(webui): Wave 4 streaming polish, import, and shortcuts

.github/workflows/deploy-pages.yml

@@ -127,7 +127,7 @@ jobs:
         run: |
           cd webui && npm ci && npm run build
           cd ..
-          npx playwright test tests/e2e/pages-chat.spec.ts tests/e2e/failover-dual-endpoint.spec.ts tests/e2e/model-picker.spec.ts tests/e2e/message-actions.spec.ts tests/e2e/health-panel.spec.ts tests/e2e/turnstile-gate.spec.ts tests/e2e/catalog-explorer.spec.ts tests/e2e/export-session.spec.ts tests/e2e/hash-routing.spec.ts
+          npx playwright test tests/e2e/pages-chat.spec.ts tests/e2e/failover-dual-endpoint.spec.ts tests/e2e/model-picker.spec.ts tests/e2e/message-actions.spec.ts tests/e2e/health-panel.spec.ts tests/e2e/turnstile-gate.spec.ts tests/e2e/catalog-explorer.spec.ts tests/e2e/export-session.spec.ts tests/e2e/hash-routing.spec.ts tests/e2e/import-session.spec.ts tests/e2e/shortcuts-sheet.spec.ts tests/e2e/streaming-polish.spec.ts
 
       - name: Run live Pages chat e2e (real proxy)
         env:

CONCEPTS.md

@@ -40,6 +40,7 @@ Shared vocabulary for the static chat gateway and Python library.
 | **Turnstile session** | Optional bot check at Worker; 1h KV pass per IP after successful siteverify |
 | **Session export** | Sidebar menu download of current chat as Markdown or JSON (client-only; no server copy) |
 | **Hash session link** | URL `#/chat/{sessionId}` restores a session from local IndexedDB on the same browser/profile |
+| **Conversation import** | File-picker restore of exported Markdown/JSON into a new local session (symmetry with session export) |
 
 ## Learnings index