Implement "Live Hard" Multi-Phase Program Support

[Bana0615]

Title: Implement "Live Hard" Multi-Phase Program Support

Description:

• Problem/Goal: The "Live Hard" program is time-dependent and includes tasks not found in the standard 75-day challenges.
• Proposed Solution:
• Implement logic to handle the specific phases (Phase 1, 2, and 3).
• Add new task types: Cold Showers (5 mins), Visualization (10 mins), and the "Power List" (3 critical tasks).
• Build the timing engine to ensure Phase 2 cannot start until 30 days after Phase 1 completion.

Acceptance Criteria:

• Users can track Phase 1, 2, and 3 specific tasks.
• The system enforces the required "gap" periods between phases.