fix(deploy): unstick nitro Json typecheck and wipe poisoned .next cache

Host next build still saw Json on nitro while tsc passed; use any helpers, verify blob hash, and delete .next entirely before build.

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

src/lib/deploy-workflow-contract.test.ts

@@ -8,9 +8,8 @@ describe("production deploy workflow", () => {
 		"utf8",
 	);
 
-	it("preserves the Next.js incremental build cache", () => {
-		// May clear .next/types or .next/dev, but must not wipe the whole .next tree.
-		expect(workflow).not.toMatch(/rm\s+-rf\s+\.next(?:\s|$)/);
+	it("wipes .next before build to avoid stale Next typecheck caches", () => {
+		expect(workflow).toContain("rm -rf .output dist .next");
 		expect(workflow).toContain("pnpm install --frozen-lockfile");
 		expect(workflow).toContain("SKIP_ENV_VALIDATION=1");
 	});
@@ -25,8 +24,10 @@ describe("production deploy workflow", () => {
 		expect(resetAt).toBeGreaterThan(reclaimAt);
 	});
 
-	it("verifies src/ matches HEAD and clears tsbuildinfo before typecheck", () => {
+	it("verifies src/ and nitro blob match HEAD before typecheck", () => {
 		expect(workflow).toContain("git diff --exit-code -- src");
+		expect(workflow).toContain("git hash-object");
+		expect(workflow).toContain("nitro-editor-dialog.tsx");
 		expect(workflow).toContain("*.tsbuildinfo");
 		expect(workflow).toContain("pnpm typecheck");
 	});