chore: align deployment pipeline with klz-2026 standards

- Add branch deployment support

- Switch build platform to linux/amd64

- Extract checks to turbo pipeline

- Add pre/post-deploy scripts & cms-sync

apps/web/app/api/health/cms/route.ts

@@ -0,0 +1,42 @@
+import { NextResponse } from "next/server";
+import { getPayload } from "payload";
+import configPromise from "@payload-config";
+
+export const dynamic = "force-dynamic";
+
+/**
+ * Deep CMS Health Check
+ * Validates that Payload CMS can actually query the database.
+ * Used by post-deploy smoke tests to catch migration/schema issues.
+ */
+export async function GET() {
+  const checks: Record<string, string> = {};
+
+  try {
+    const payload = await getPayload({ config: configPromise });
+    checks.init = "ok";
+
+    // Verify each collection can be queried (catches missing locale tables, broken migrations)
+    // Adjusted for mintel.me collections
+    const collections = ["posts", "projects", "media", "inquiries"] as const;
+    for (const collection of collections) {
+      try {
+        await payload.find({ collection, limit: 1 });
+        checks[collection] = "ok";
+      } catch (e: any) {
+        checks[collection] = `error: ${e.message?.substring(0, 100)}`;
+      }
+    }
+
+    const hasErrors = Object.values(checks).some((v) => v.startsWith("error"));
+    return NextResponse.json(
+      { status: hasErrors ? "degraded" : "ok", checks },
+      { status: hasErrors ? 503 : 200 },
+    );
+  } catch (e: any) {
+    return NextResponse.json(
+      { status: "error", message: e.message?.substring(0, 200), checks },
+      { status: 503 },
+    );
+  }
+}