feat(devops): diagnose slow HK requests and dependency timings

src/lib/db.ts

@@ -5,6 +5,8 @@ import * as schema from "@/db/schema";
 import { env } from "@/env";
 import { resolveConnectionLimit } from "@/lib/db-pool";
 
+import { instrumentDatabase } from "@/lib/performance-diagnostics";
+
 const fullSchema = { ...schema, ...relations };
 
 const globalForDb = globalThis as unknown as {
@@ -42,7 +44,7 @@ function createDb() {
 		supportBigNumbers: true,
 	});
 
-	return drizzle(pool, {
+	return drizzle(instrumentDatabase(pool), {
 		schema: fullSchema,
 		mode: "default",
 		logger: