feat: POST /republish-all admin endpoint

Loops over approved events and re-emits each NIP-52 calendar event.
Useful as a one-shot migration after the publisher's tag set
changes (e.g. the tickets_* tag rollout introduced in this PR) so
existing events on a deployed instance pick up the new metadata
without each organizer having to edit and save.

Gated by check_admin (LNbits instance admin), errors swallowed
per-event inside the publisher so one bad row doesn't block the
rest. Returns a count summary.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

views_api.py

@@ -112,6 +112,30 @@ async def api_events_pending(
     return await get_pending_events()
 
 
+@events_api_router.post("/republish-all")
+async def api_republish_all(
+    admin: Account = Depends(check_admin),
+) -> dict:
+    """Force-republish every approved event to Nostr relays. Admin only.
+
+    Used by the catalog-bump migration that introduced the AIO ticket
+    tags: existing events on a deployed instance were published before
+    the publisher learned the new tag set, so they don't carry
+    tickets_available / tickets_sold / etc. until something triggers
+    a republish. This endpoint walks the approved list and re-emits
+    each calendar event so connected clients see the new metadata
+    without waiting for a per-event edit.
+
+    Errors are swallowed per-event (logged inside the publisher) so
+    one bad event doesn't block the rest. Returns a count summary.
+    """
+    events = await get_all_events()
+    approved = [e for e in events if e.status == "approved" and not e.canceled]
+    for event in approved:
+        await publish_or_delete_nostr_event(event)
+    return {"republished": len(approved), "total": len(events)}
+
+
 @events_api_router.get("/settings")
 async def api_get_settings(
     admin: Account = Depends(check_admin),