init: me-api 个人简历后台

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

api/queries/connection.ts

@@ -0,0 +1,18 @@
+import { drizzle } from "drizzle-orm/mysql2";
+import { env } from "../lib/env";
+import * as schema from "@db/schema";
+import * as relations from "@db/relations";
+
+const fullSchema = { ...schema, ...relations };
+
+let instance: ReturnType<typeof drizzle<typeof fullSchema>>;
+
+export function getDb() {
+  if (!instance) {
+    instance = drizzle(env.databaseUrl, {
+      mode: "default",
+      schema: fullSchema,
+    });
+  }
+  return instance;
+}