Implement DELETE /tasks/:id

Implement an endpoint that removes a task by ID.

What to implement

- Route: DELETE /tasks/:id

- Validate that id is a valid number.

- Delete the task from app.tasks table.

- Return 204 No Content on success.

- Return 404 if the task does not exist.

Expected result
The task is removed from the database, and any related task_logs (via ON DELETE CASCADE) are cleaned up automatically.
You actually do not need any extra logic for the task logs part, postgresql will handle that part 💯

Look for the existing task routes (likely in a routes/ or controllers/ directory) to see the pattern for GET/POST endpoints. The database model for tasks (app.tasks) will be defined in a model or schema file. Add a DELETE route handler that validates the ID, performs the deletion, and returns the correct HTTP status codes (204 or 404). Test the endpoint with a tool like curl or Postman.

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