Extract ProgressPresenter module #18

Extract progress message formatting and lifecycle management from src/index.ts (lines 21-90, 123-207) into a dedicated ProgressPresenter module.

Scope:

• Extract formatProgressMessage() function with phase emojis and labels
• Extract message truncation logic
• Extract statusMessages Map management
• Extract onProgress callback handling
• Extract status message lifecycle (create, update, delete)
• Handle final summary posting

Acceptance Criteria:

• ProgressPresenter module exists in appropriate location (e.g., src/presenters/)
• All progress formatting logic is moved out of src/index.ts
• ProgressPresenter has clear, documented interface
• State management (statusMessages Map) is properly encapsulated
• Unit tests verify progress message formatting
• Unit tests verify status message lifecycle
• Integration tests verify end-to-end progress behavior unchanged
• All existing tests continue to pass

Dependencies:

• Parent: SB-0MN3UDQFM0LB0LAH
• Related: Interface definitions must be established first (SB-*)

Notes:

• Consider class-based vs functional approach based on state management needs
• The onProgress callback has complex logic that needs careful extraction
• Coordinate with LifecycleManager for status message restoration on startup