feat(ui): TDS migration stage 2 — six page views and page modules

- Dashboard, Workers, Workflows, Executions, Quick Command, Scheduler pages on the
  shared layout, all behaviour via Pulse delegated actions (no inline handlers)
- Executions: server-driven Manual/Automated views, compare mode, detail modal with all
  log types, ?open= deep link, cross-page re-run via sessionStorage
- Workflows: run modal (dry-run available for every workflow), create modal pre-filled
  with the example definition
- Fix EJS comment in page-header partial that broke rendering

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HamVMDrA8RqhyxmUHgiqRp

views/partials/page-header.ejs

@@ -1,8 +1,7 @@
 <%#
   Page header partial.
   Locals: title (string), subtitle (optional string), actions (optional raw HTML).
-  Usage from a page view:
-    <%- include('../partials/page-header', { title: 'Workers', subtitle: '', actions: '' }) %>
+  Usage from a page view: include('../partials/page-header', { title, subtitle, actions })
 %>
 <div class="lt-page-header">
   <div>