feat: Add SafetyMonitorProvider for robot safety monitoring and emergency stop

[Vt01nft]

Problem Statement

OM1 currently lacks a centralized safety monitoring system. Robots operating autonomously need:

• Emergency stop capability when unsafe conditions are detected
• Real-time monitoring of critical system parameters
• Safety alerts before dangerous situations occur
• Audit logging of all safety events

Without this, robots may:

• Continue operating with critically low battery (risking damage)
• Overheat and damage hardware
• Collide with obstacles without proper alerts
• Have no way to trigger emergency stops

Proposed Solution

Create a SafetyMonitorProvider that provides:

Core Safety Features

Feature	Description
Emergency Stop	Immediate halt capability with callback system
Battery Monitoring	Critical/low/normal thresholds with alerts
Temperature Monitoring	CPU/system temp with overheat protection
Collision Prevention	Proximity alerts from sensor data
Safety Zones	Define restricted areas robot shouldn't enter
Watchdog Timer	Detect system hangs, auto-recovery
Safety Event Logging	Full audit trail of safety events

Integration Points

• Works with existing TeleopsStatusProvider for battery data
• Integrates with rplidar_provider for proximity data
• Uses singleton pattern like other providers
• Provides callbacks for actions to respond to safety events

Example Usage

safety = SafetyMonitorProvider()
safety.register_emergency_callback(robot.stop_all_motors)
safety.set_battery_thresholds(critical=10, low=20, warning=30)
safety.start()

# Check safety status
if safety.is_safe_to_operate():
    robot.execute_action()

Impact

• Safety: Prevents damage to robot and environment
• Reliability: Auto-recovery from common failures
• Compliance: Audit trail for safety events
• Reusability: Can be used by all robot types in OM1

Checklist

• Follows OM1 provider patterns (singleton, dataclasses)
• Includes comprehensive docstrings
• Includes unit tests
• Uses type hints throughout

I would like to implement this feature. Looking forward to feedback!