[studio] add missing migration script

Justfile

@@ -71,7 +71,7 @@ preview:
 deploy *args:
   bun turbo deploy "$@"
 
-# Apply D1 migrations (rooms + auth own them). Defaults to --remote; pass `-- --local`
+# Apply D1 migrations (every worker with a `migrate` script). Defaults to --remote; pass `-- --local`
 # for the dev db. Scope with -F, e.g. `just migrate -F rooms`.
 [group('2. local dev')]
 [positional-arguments]

apps/studio/README.md

@@ -34,3 +34,15 @@ pnpm test
 ```sh
 pnpm turbo deploy
 ```
+
+### Migrate
+
+This worker owns `studio_cloud_build` and `studio_unity_asset_file` on the shared
+`recflare` database (`migrations/`, tracked in its own `d1_migrations_studio` table).
+Deploying does not apply them; the cdn worker reads `studio_unity_asset_file` and
+answers 404 for every Studio bundle until this has run.
+
+```sh
+just migrate -F studio             # remote
+just migrate -F studio -- --local  # dev db
+```

apps/studio/package.json

@@ -12,6 +12,7 @@
 		"deploy": "run-wrangler-deploy",
 		"dev": "run-wrangler-dev",
 		"fix:workers-types": "run-wrangler-types",
+		"migrate": "run-wrangler-migrate",
 		"test": "run-vitest"
 	},
 	"dependencies": {

apps/studio/wrangler.jsonc

@@ -6,14 +6,17 @@
 	"compatibility_flags": ["nodejs_compat"],
 	// Shared `recflare` D1. Room co-owners come off the `room` blob and who is in a
 	// subroom comes off `presence` (other workers own those tables). This worker
-	// owns the cloud-build tables, migrated from `migrations/`. The "local"
+	// owns the cloud-build tables, migrated from `migrations/`; its own
-	// placeholder is replaced with RECFLARE_D1 at deploy time.
+	// migrations_table keeps that history separate from the other workers'
+	// migrations on the shared database. The "local" placeholder is replaced with
+	// RECFLARE_D1 at deploy time.
 	"d1_databases": [
 		{
 			"binding": "DB",
 			"database_name": "recflare",
 			"database_id": "local",
-			"migrations_dir": "migrations"
+			"migrations_dir": "migrations",
+			"migrations_table": "d1_migrations_studio"
 		}
 	],
 	// Shared `recflare-cdn` R2 bucket (also bound by `rooms` / `cdn` / `storage`).