#166 Add proper logging for normal tasks and activity tasks

Implement comprehensive logging for both normal workflow tasks and activity tasks. API Endpoints needed: - GET /api/v1/logs/workflows/{workflow_id}/activities - List all activities for workflow - GET /api/v1/logs/workflows/{workflow_id}/activities/{activity_id} - Get single activity with full captured logs - GET /api/v1/logs/workflows/{workflow_id}/activities?include_logs=true - Include captured logs in list response DataShard Storage Path: highway-test-logs/data/test/{workflow_id}/activity_logs/ Requirements: 1. Frontend component to display task/activity logs 2. API integration for log retrieval 3. Proper log formatting and display 4. Support for both normal tasks and activity worker tasks