feat: house tracker with home worker, alerts and listing map

Collects Pararius rent/buy listings into Postgres via a worker that runs on a
residential connection, sends Discord/ntfy alerts for new listings matching
rules, and shows an admin-only map, market stats and worker log.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013HfF5tnChi8tkCx9svJP6D

package.json

@@ -25,6 +25,8 @@
 		"db:migrate:game-tracker": "bun scripts/migrate-game-tracker.ts",
 		"db:migrate:cs-prices": "bun scripts/migrate-cs-prices.ts",
 		"cs-prices:ingest": "bun scripts/ingest-cs-prices.ts",
+		"db:migrate:house-tracker": "bun scripts/migrate-house-tracker.ts",
+		"house:worker": "bun scripts/house-worker.ts",
 		"auth:role": "bun scripts/set-admin.ts",
 		"catalog:build": "python3 scripts/build-pokemon-catalog.py",
 		"catalog:cod": "python3 scripts/build-cod-catalog.py && prettier --write data/call-of-duty.json",