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/staff-smoke-contract.test.ts

@@ -49,6 +49,21 @@ describe("staff smoke contract", () => {
 		).toContain("UserSanctionTimeline");
 	});
 
+	it("applies CMS SQL from drizzle/migrations (not Prisma)", () => {
+		expect(existsSync("drizzle/migrations")).toBe(true);
+		expect(existsSync("prisma")).toBe(false);
+		expect(readFileSync("scripts/apply-migrations.ts", "utf8")).toContain(
+			"drizzle/migrations",
+		);
+		expect(readFileSync("package.json", "utf8")).not.toContain('"prisma"');
+		expect(readFileSync("package.json", "utf8")).not.toContain(
+			'"@prisma/client"',
+		);
+		expect(readFileSync("drizzle.config.ts", "utf8")).toContain(
+			"./drizzle/drafts",
+		);
+	});
+
 	it("ships shared ops + ticket queue helpers", () => {
 		expect(existsSync("src/lib/admin/ops-health.ts")).toBe(true);
 		const ops = readFileSync("src/lib/admin/ops-health.ts", "utf8");