feat(api): server-rendered Jinja2 Runtime console at /ui/

Replaces the separate Vue/Vite `console/` SPA with a same-origin,
server-rendered console built on a module-level Jinja2 Environment
with select_autoescape(["html","xml"]).

- Add api/console_web.py with /ui/ routes (dashboard, tasks, task
  detail/timeline, config) and a _status_fragment polled every 10s.
- Refactor api/console.py into a typed ConsoleService shared by the
  JSON and HTML routers so validation/persistence cannot drift.
- Remove RUNTIME_CONSOLE_STATIC_DIR, SpaStaticFiles, and the wildcard
  CORS middleware from api/rest.py; GET / now redirects to /ui/.
- Delete the top-level console/ project; add jinja2 and python-multipart
  as direct dependencies and ship templates/CSS/JS via package-data.
- Add 31 tests (XSS probes, PRG flows, fragment refresh, no-static-dir
  and no-CORS regressions, wheel-packaging smoke test).

/console/* JSON endpoints remain unchanged. The console keeps the
trusted-network-only boundary; auth/CSRF is intentionally deferred.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.dockerignore

@@ -7,6 +7,5 @@ __pycache__
 *.py[cod]
 *.sqlite3
 tasks
-console/node_modules
 cloud-console/node_modules
 cloud-console/dist