feat: enhance EvoBGP with new command-line options for the evobgp-agent, including a watch command for periodic configuration updates. Update go.mod with additional dependencies and improve Docker Compose setup for new services, including NATS and various worker components.

migrations/sqlite/000002_speaker_publish.down.sql

@@ -0,0 +1,2 @@
+-- SQLite cannot DROP COLUMN easily in older versions; no-op for dev rollback.
+SELECT 1;

migrations/sqlite/000002_speaker_publish.up.sql

@@ -0,0 +1,5 @@
+-- SQLite: add columns (IF NOT EXISTS per column not supported — use new table copy if needed).
+-- pragma: skip if columns exist — simplest: ALTER TABLE ADD COLUMN (SQLite allows multiple ADD).
+
+ALTER TABLE bgp_speaker ADD COLUMN published_revision_id TEXT REFERENCES config_revision (id) ON DELETE SET NULL;
+ALTER TABLE bgp_speaker ADD COLUMN published_at TEXT;