feat(ansible): schedules read as sentences, each with its own page (#5332)

- The Schedules tab: a verdict line (failing first, paused, next due),
  each schedule as one line (what runs where, how often, when next, how it
  last went); the row opens its page; Run now and Pause stay in the row.
- /ansible/schedules/new and /ansible/schedules/<id>: the form on classes,
  dry run beside the button, the playbook's variables rendered with the
  page; at the foot Delete behind the confirm dialog. ?source=&playbook=
  start a new one on a playbook (Schedule it on the playbook's page).
- A run started by a schedule links to that schedule's page.
- The run page's id guard allows the Run again link's ?from=.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

steward/static/steward.css

@@ -382,6 +382,7 @@ a.stat-tile:hover { border-color: var(--border-mid); background: var(--bg-elevat
 .field-check { display: inline-flex; align-items: center; gap: 0.5rem; font-size: 0.85rem; font-weight: normal; color: var(--text-muted); }
 .form-actions .field-check { margin: 0; }
 .playbook-cell { max-width: 30rem; }
+.inline-form { display: inline; }
 /* The playbook itself, folded under its page. */
 .playbook-source > summary { cursor: pointer; margin: 0; }
 .playbook-source[open] > summary { margin-bottom: 0.75rem; }