fix(dashboard-agent-db): load .env for local migrations

The Drizzle migrator (migrate.mjs / migrate-status.mjs) reads only
process.env, so `pnpm run db:migrate` failed locally with "No database
url set" — unlike Prisma, which auto-loads .env. Load the repo .env via
node's --env-file-if-exists (no-op in the container/cloud, where the file
is absent and real env vars win) and expand ${VAR} refs the flag would
otherwise keep literal (e.g. DIRECT_URL=${DATABASE_URL}).

Author: carderne

internal-packages/dashboard-agent-db/migrate-status.mjs

@@ -8,12 +8,13 @@ import postgres from "postgres";
 const MIGRATIONS_SCHEMA = "drizzle";
 const MIGRATIONS_TABLE = "__dashboard_agent_migrations";
 
-// Match migrate.mjs: a direct (non-pooler) connection, same precedence.
-const connectionString =
+// Match migrate.mjs: same precedence, and expand `${VAR}` refs (see migrate.mjs).
+const connectionString = (
   process.env.DASHBOARD_AGENT_DIRECT_URL ??
   process.env.DASHBOARD_AGENT_DATABASE_URL ??
   process.env.DIRECT_URL ??
-  process.env.DATABASE_URL;
+  process.env.DATABASE_URL
+)?.replace(/\$\{(\w+)\}/g, (_, k) => process.env[k] ?? "");
 
 if (!connectionString) {
   console.error(

internal-packages/dashboard-agent-db/migrate.mjs

@@ -14,11 +14,14 @@ import postgres from "postgres";
 // can't run the migrator. Prefer the agent's direct url, then its pooled url,
 // then the main DIRECT_URL/DATABASE_URL (OSS single-database fallback; tables
 // still land in the `trigger_dashboard_agent` schema).
-const connectionString =
+// `.replace` expands `${VAR}` refs (e.g. the repo .env's DIRECT_URL=${DATABASE_URL});
+// node's --env-file loads them literally, unlike Prisma's dotenv-expand.
+const connectionString = (
   process.env.DASHBOARD_AGENT_DIRECT_URL ??
   process.env.DASHBOARD_AGENT_DATABASE_URL ??
   process.env.DIRECT_URL ??
-  process.env.DATABASE_URL;
+  process.env.DATABASE_URL
+)?.replace(/\$\{(\w+)\}/g, (_, k) => process.env[k] ?? "");
 
 if (!connectionString) {
   console.error(

internal-packages/dashboard-agent-db/package.json

@@ -16,8 +16,8 @@
     "typecheck": "tsc --noEmit",
     "db:generate": "drizzle-kit generate",
     "db:migrate": "drizzle-kit migrate",
-    "db:migrate:deploy": "node migrate.mjs",
-    "db:migrate:status": "node migrate-status.mjs",
+    "db:migrate:deploy": "node --env-file-if-exists=../../.env migrate.mjs",
+    "db:migrate:status": "node --env-file-if-exists=../../.env migrate-status.mjs",
     "db:studio": "drizzle-kit studio"
   }
 }