Complete Week 02 temple API Swagger documentation and route updates

[ADBranches]

Summary

This pull request completes the Week 02 team activity for the temple API starter project.

Changes made

• configured MongoDB connection through .env
• verified existing temple routes
• added Swagger generation with swagger-autogen
• mounted live Swagger UI at /api-docs
• documented the existing routes:
  • GET /temples
  • GET /temples/:temple_id
  • POST /temples
• added and documented missing routes:
  • PUT /temples/:temple_id
  • DELETE /temples/:temple_id
• updated the temple model and controller logic to support the documented fields and CRUD flow

Testing performed

• generated swagger.json successfully
• verified /api-docs loads Swagger UI
• tested:
  • GET /temples
  • GET /temples/:temple_id
  • POST /temples
  • PUT /temples/:temple_id
  • DELETE /temples/:temple_id

Notes

• .env was kept local and not included in the repository