Can I vibe code Mechanic?

Build a serverless webhook listener and task runner designed to replace standard Mechanic tasks for a Shopify store using TypeScript and Cloudflare Workers.

1. ARCHITECTURE & STORAGE:
- Use Cloudflare Workers for edge execution.
- Use Cloudflare KV or Upstash Redis for state storage, event deduplication, and Shopify API token storage.
- Use Cloudflare Queues to handle async task retries and prevent rate-limit exhaustion.

2. SHOPIFY API INTEGRATION:
- Implement HMAC SHA256 signature verification for all incoming Shopify webhooks.
- Create a unified Shopify GraphQL client that handles the leaky-bucket rate limit headers (extensions.cost.throttleStatus). If remaining budget drops below 100 points, automatically delay processing using queue delays.
- Support environment variables for API Version (e.g. 2024-04) and Access Tokens.

3. CORE TASK MODULES:
- Module A (Auto-Tagging): Listen for 'orders/create'. If order total > $200 and customer tags do not include 'VIP', issue a GraphQL mutation to tag the customer as 'VIP'.
- Module B (Inventory Cron): Expose a scheduled trigger (Cron trigger) that queries products with inventory = 0 and updates their product status or metafields based on custom rules.
- Module C (Webhook Outbound): Listen for 'draft_orders/create' and send a POST payload to an external ERP endpoint, retrying up to 3 times with exponential backoff on failure.

4. LOGGING AND ERROR HANDLING:
- Log all received event IDs, execution status, and API cost metrics to structured JSON logs.
- Deduplicate events using the 'X-Shopify-Webhook-Id' header stored in Redis/KV for 24 hours.

OUT OF SCOPE:
- Dynamic code editing UI for store admins.
- General Liquid engine evaluation (write all business logic strictly in TypeScript).

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