test: Improve init system test coverage to ≥90%

[wtthornton]

Current Status

• Overall Coverage: 82.34%
• Target: ≥90% for framework code

Coverage Gaps

1. Integration Tests Missing

   • No end-to-end tests for full init workflow
   • Missing tests for error scenarios
   • No tests for edge cases (empty projects, large projects)

2. Error Handling

   • Network failure scenarios (Context7 cache)
   • Invalid configuration files
   • Permission errors
   • Disk space issues

3. Edge Cases

   • Projects with no dependencies
   • Projects with 1000+ dependencies
   • Malformed dependency files
   • Circular dependencies

Test Plan

Integration Tests

# tests/tapps_agents/core/test_init_integration.py

def test_full_init_workflow():
    """Test complete init from scratch"""
    # Create temp project
    # Run init
    # Verify all phases completed
    # Check all files created
    
def test_init_with_auto_experts():
    """Test init with expert auto-generation"""
    # Create project with knowledge files
    # Run init --auto-experts
    # Verify experts generated
    
def test_init_error_recovery():
    """Test init handles errors gracefully"""
    # Simulate network failure
    # Verify rollback
    # Verify error messages

Unit Tests

• Test each init phase independently
• Test error conditions
• Test edge cases
• Test configuration variations

Performance Tests

def test_init_performance():
    """Init completes within time limit"""
    start = time.time()
    init_project(project_root)
    duration = time.time() - start
    assert duration < 30  # 30 second limit

Success Criteria

• Overall coverage ≥ 90%
• Integration tests for all workflows
• Error scenario coverage
• Edge case coverage
• Performance benchmarks

Dependencies

• Related to refactor: Extract init_project.py into modular phases #27 (refactoring will make testing easier)

Priority

High - Quality gate for framework code