refactor(core): move database schema ownership (#29068)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>

packages/core/drizzle.config.ts

@@ -0,0 +1,10 @@
+import { defineConfig } from "drizzle-kit"
+
+export default defineConfig({
+  dialect: "sqlite",
+  schema: ["./src/**/*.sql.ts", "./src/**/sql.ts"],
+  out: "./migration",
+  dbCredentials: {
+    url: "/home/thdxr/.local/share/opencode/opencode.db",
+  },
+})