refactor: move into monorepo

packages/shared/drizzle.config.ts

@@ -0,0 +1,14 @@
+import { defineConfig } from "drizzle-kit";
+
+if (!process.env.ZERO_UPSTREAM_DB) {
+  throw new Error("ZERO_UPSTREAM_DB is not set");
+}
+
+export default defineConfig({
+  schema: "./src/db/schema/index.ts",
+  // out: "../migrations",
+  dialect: "postgresql",
+  dbCredentials: {
+    url: process.env.ZERO_UPSTREAM_DB,
+  },
+});