Bootstrap self-improvement loop, decompose model-divergence-enforcement

Self-improvement loop:
- Created via --create-loop --from-template self-improvement
- Scheduled via launchd (3600s interval)
- State: running

model-divergence-enforcement task:
- Research approved, decomposed into 3 sequential subtasks:
  1. mde-manifest-detection (models.json + detect_models.py)
  2. mde-interactive-enforcement (conflict matrix + --model args + audit)
  3. mde-loop-enforcement (loop.json roles + {model} substitution + check-gate)
- Parent at decomposition:approved (stays active until subtasks complete)
- Each subtask has BRIEF.md with scope, deliverables, acceptance criteria

loops/self-improvement/.state.loop

@@ -0,0 +1,14 @@
+{
+  "current_task": null,
+  "halt_reason": null,
+  "iteration_count": 0,
+  "last_tick_at": null,
+  "last_verdict": null,
+  "name": "self-improvement",
+  "resumed_count": 0,
+  "schema_version": 1,
+  "score_history": [],
+  "status": "running",
+  "worktree_branch": null,
+  "worktree_path": null
+}