Add live dashboard with SSE job events

Expose /jobs, /dedup, and /events routes backed by a new EventBus that
broadcasts job lifecycle and per-job progress over SSE. Serve a static
dashboard from front/ that lists pending and in-progress jobs, streams
agent activity, and shows completed reviews.

Also add migrate-apply/migrate-generate scripts that load .env, update
the Containerfile to ship the front assets and use the apply script, and
refresh the roadmap.

public/index.html

@@ -519,9 +519,11 @@
         <ul class="roadmap-list">
           <li><span class="version">1.2</span><span>Sandboxed pull-request reviews.</span></li>
           <li><span class="version">1.2.1</span><span>A default Dev Container when a repository has no configuration.</span></li>
-          <li><span class="version">1.3</span><span>Type-safe routing between review and implementation requests.</span></li>
-          <li><span class="version">2.0</span><span>Implement requested changes from issues or existing PRs, then create or update a PR automatically.</span></li>
+          <li><span class="version">1.3</span><span>Durable reviews: persist jobs in PostgreSQL, list them by state (running, pending, review done), and stream live updates over SSE.</span></li>
+          <li><span class="version">1.4</span><span>Configuration from a YAML file, replacing part of the environment variables.</span></li>
+          <li><span class="version">2.0</span><span>Type-safe action routing between reviews and implementation requests, implement requested changes from issues or existing PRs, then create or update a PR automatically.</span></li>
           <li><span class="version">2.1</span><span>Project instructions from <code>AGENTS.md</code> and separate review/implementation models.</span></li>
+          <li><span class="version">2.2</span><span>Sub-agents that take on well-scoped parts of a task and run in parallel.</span></li>
           <li><span class="version">3.0</span><span>Automatically investigate and fix project errors reported by Sentry.</span></li>
         </ul>
       </div>