Integration tests

[kashifpk]

Description

Create integration tests for Orchestrator.

Tasks

• Set up pytest with async support
• Test full agent loop (mock LLM)
• Test MCP client functionality
• Test WebSocket server
• Test message history
• Add CI workflow

Test Scenarios

• Agent loop with mock LLM
• Tool calling via MCP
• WebSocket message handling
• Multi-turn conversations

Acceptance Criteria

• Tests run with uv run pytest
• CI runs tests on PR
• Agent loop tested end-to-end

[kashifpk]

Moved to Post-MVP phase - not blocking for initial release.