Add phase-wise context analysis summaries for strategize, execute, and apply, and integrate them into `agents project context inspect` and `agents project context simulate` with per-phase resource counts, size and token utilization, and narrowing diagnostics.\n\nAdd Behave and Robot coverage for empty, single-resource, multi-resource, and budget-constrained context analysis, and tighten the M5 smoke coverage after review feedback with exact summary assertions and a missing-path regression scenario for `agents context add`.\n\nISSUES CLOSED: #849
