Phase 4: Add tests and CI/CD pipeline

[creatiVision]

Phase 4: Tests & CI/CD

Add automated testing and continuous integration.

Tasks

• Add pytest test suite with mocked API responses
• Test all 48 MCP tool parameter mappings
• Test error handling (401, 403, 400, 500, 504 responses)
• Add GitHub Actions CI workflow (lint + test)
• Add integration test with real API (optional, manual trigger)
• Add type checking with mypy
• Add code coverage reporting

Priority: Medium

Depends on: Phase 3 (error handling)