[TASK][Timpani-n] Implement Task Management

[LGSI-KarumuriHari]

📝 Task Description

Develop the logic for task creation, state management, and lifecycle handling in Timpani-n.

📋 Checklist

• Implement task creation and initialization
• Manage task states (ready, running, waiting, etc.)
• Integrate with scheduler and signal handling

🔗 Related Requirement

Relates to #35

📐 Implementation Guidelines

Reference task.c in the C codebase.

🧪 Testing Method

• Unit tests for task state transitions
• Integration test with scheduler