fix: resolve smoke test failures -- CLI JSON output, port collision, stale DBs

packages/core/tests/integration/client/comments.test.ts

@@ -14,7 +14,7 @@ import { describe, it, expect, beforeAll, afterAll } from "vitest";
 import type { TestServerContext } from "../server.js";
 import { assertNodeVersion, createTestServer } from "../server.js";
 
-const PORT = 4398;
+const PORT = 4396;
 const TIMEOUT = 60_000;
 
 /** Helper: raw fetch with auth headers */

packages/core/tests/integration/smoke/site-matrix-smoke.test.ts

@@ -1,5 +1,6 @@
 import { execFile, spawn } from "node:child_process";
-import { resolve } from "node:path";
+import { rmSync } from "node:fs";
+import { join, resolve } from "node:path";
 import { promisify } from "node:util";
 
 import { describe, expect, it } from "vitest";
@@ -203,6 +204,12 @@ describe.sequential("Site smoke matrix", () => {
 			async () => {
 				await ensureBuilt();
 
+				// Remove stale database files so each run starts fresh.
+				// SQLite demos use data.db; WAL/SHM sidecars may also exist.
+				for (const file of ["data.db", "data.db-wal", "data.db-shm"]) {
+					rmSync(join(site.dir, file), { force: true });
+				}
+
 				const baseUrl = `http://localhost:${site.port}`;
 				const serverProcess = spawn("pnpm", ["exec", "astro", "dev", "--port", String(site.port)], {
 					cwd: site.dir,