Can I vibe code Contentful?

Build a self-hosted Headless CMS web application in Node.js, TypeScript, Next.js (App Router), PostgreSQL, and Tailwind CSS that acts as a direct replacement for Contentful's core functionality for a single organization.

The application must support:
1. CONTENT MODELING ENGINE:
   - Create, edit, and version Content Types (schemas) containing fields: Short Text, Long Text, Rich Text (JSON representation with AST), Number, Boolean, Date, Media Asset, JSON, and Reference (One-to-One and One-to-Many relationships to other entries).
   - Enforce schema validations per field (required, unique, min/max length, regex patterns).
   - Support field-level localization (e.g., en-US, es-ES, de-DE) with fallback values.

2. EDITORIAL & ENTRY MANAGEMENT UI:
   - visual entry editor rendered dynamically from Content Type definitions.
   - Draft and Published status lifecycle with version history tracking and rollback functionality.
   - Rich Text editor supporting embedded assets, entries, links, and structured formatting saved as JSON AST.
   - Media Library allowing asset uploads (images, PDFs, documents), automated metadata extraction, image resizing query params, and S3-compatible cloud storage integration.

3. API DELIVERY LAYER:
   - Public-facing read-only Content Delivery API (CDA) powered by GraphQL and REST endpoints protected by API tokens.
   - Content Preview API (CPA) returning draft content authenticated via secret preview tokens.
   - Content Management API (CMA) authenticated via administrative JWTs or API keys to perform programmatic CRUD on entries and schemas.
   - Built-in API response caching header generator (Cache-Control, ETag) and instant cache-invalidation webhooks.

4. WEBHOOK ENGINE & INTEGRATIONS:
   - Configurable webhook triggers for events: entry.create, entry.publish, entry.unpublish, entry.delete, asset.create, asset.delete.
   - Webhook payload signature validation (HMAC SHA-256) and retry queue using background workers (BullMQ/Redis).

DATA MODEL ENTITIES:
- Spaces, Environments, ContentTypes, Fields, Entries, EntryVersions, Assets, Locales, ApiTokens, Webhooks, WebhookLogs.

FAILURE MODES TO HANDLE:
- Cascading entry deletions when referenced entries exist (block deletion or set null safely).
- Circular reference loops during deeply nested GraphQL queries (enforce maximum depth limits).
- Schema breaking changes when deleting or modifying existing fields with published entry data.

OUT OF SCOPE:
- Enterprise multi-tenant space orchestration and SCIM user provisioning.
- Native video transcoding pipeline (rely on pre-processed media).
- AI auto-generation features and complex visual page builders.

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