{
  "track_id": "c_atoms_phase_b_20260220",
  "type": "feature",
  "status": "new",
  "created_at": "2026-02-20T08:30:00Z",
  "updated_at": "2026-02-20T08:30:00Z",
  "description": "Implement v5.1 Phase B: C Atoms (SELECT, COMPRESS, BUDGET primitives - No LLM)"
}
