chore(db): finish Prisma cutover to Drizzle Kit tooling

Move CMS SQL to drizzle/migrations, drop prisma packages/schema, wire drizzle-kit scripts, and regenerate schema names from src/db/schema.ts.

Co-authored-by: Cursor <[email protected]>

src/lib/admin-content-modules-contract.test.ts

@@ -19,15 +19,17 @@ const tables = [
 
 describe("admin content module port", () => {
 	it("owns every required table through schema and migration contracts", () => {
-		const schema = readFileSync(resolve("prisma/schema.prisma"), "utf8");
+		const schema = readFileSync(resolve("src/db/schema.ts"), "utf8");
 		const migration = readFileSync(
-			resolve("prisma/migrations/0013_admin_events_polls_banners_prefixes.sql"),
+			resolve(
+				"drizzle/migrations/0013_admin_events_polls_banners_prefixes.sql",
+			),
 			"utf8",
 		);
 		for (const table of tables) {
 			expect(migration).toContain(`CREATE TABLE IF NOT EXISTS \`${table}\``);
 			if (!table.startsWith("custom_prefix"))
-				expect(schema).toContain(`@@map("${table}")`);
+				expect(schema).toContain(`"${table}"`);
 		}
 	});