feat(ui): jobs view stub + sidebar entry

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

public/app.js

@@ -19,7 +19,8 @@ const VIEWS = {
   resource:        () => import('./views/resource.js'),
   search:          () => import('./views/search.js'),
   inbox:           () => import('./views/inbox.js'),
-  'sacred-valley': () => import('./views/sacred_valley.js')
+  'sacred-valley': () => import('./views/sacred_valley.js'),
+  jobs:            () => import('./views/jobs.js')
 };
 
 async function renderView(ctx) {