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

public/assets/pages/workers.css

@@ -0,0 +1,32 @@
+/* Workers page (WP-C) — grid layout for worker cards. */
+.wk-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
+  gap: var(--space-md);
+}
+
+.wk-card-header {
+  display: flex;
+  align-items: center;
+  gap: var(--space-sm);
+  margin-bottom: var(--space-sm);
+}
+
+.wk-name {
+  font-weight: 700;
+  flex: 1;
+}
+
+.wk-lastseen {
+  font-size: 0.7rem;
+  color: var(--text-muted);
+  margin-bottom: var(--space-sm);
+}
+
+.wk-card .lt-card-footer {
+  margin-top: var(--space-md);
+  padding-top: var(--space-sm);
+  border-top: 1px solid var(--border-color-dim);
+  display: flex;
+  justify-content: flex-end;
+}