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Trajectory Core Service

The core service powering TrajectoryOS. Implements the Life Physics model, manages state persistence, and provides REST API for all physics calculations.

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**Status**: ✅ **Live** - Production-ready life physics engine and state management The core service powering TrajectoryOS. Implements the Life Physics model, manages state persistence, and provides REST API for all physics calculations. **GET `/api/state/:userId`** - Get current life state for user - Response: `LifeState` object with physics metrics **GET `/api/state/:userId/history`** - Get historical state snapshots - Query params: `?limit=30&offset=0` - Response: Array of `LifeState` objects **POST `/api/state/:userId/update`** - Manually trigger state recalculation - Body: `{ reason?: string }` - Response: Updated `LifeState`

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