feat(kis-collection): finalize sqlite migration, add fallback resilience, and update WBS documentation

spec/calibration_registry.yaml

@@ -769,6 +769,17 @@ thresholds:
   notes: magnitudeExcessPctp ≥ 3 → OVER_EXTENDED. 현금 회복 관점의 감점 임계.
   live_sample_requirement: 30
   sunset_date: '2026-09-30'
+- id: CASH_FLOOR_EXIT_SIGNAL_MIN_COUNT
+  value: 2
+  unit: count
+  source: EXPERT_PRIOR
+  sample_n: 0
+  last_calibrated: null
+  owner_formula: CASH_FLOOR_V1
+  gs_location: gas_data_feed.gs:4705
+  notes: alreadyActive && exitSignals.length >= 2 → EXIT_SECULAR_LEADER. 현금 회수 시퀀스 종료 최소 신호 수.
+  live_sample_requirement: 30
+  sunset_date: '2026-09-30'
 - id: CASH_UPLIFT_EVENT_SHOCK_MIN
   value: 20
   unit: pct
@@ -1782,6 +1793,15 @@ thresholds:
   owner_formula: LEADER_POSITION_WEIGHT_CAP_V1
   gs_location: gas_data_feed.gs:3829
   notes: Leader position weight cap.
+- id: LEADER_POSITION_WEIGHT_CAP_V1_TIME_BREACH_DAYS
+  value: 60
+  unit: days
+  source: SPEC_DERIVED
+  sample_n: 0
+  last_calibrated: null
+  owner_formula: LEADER_POSITION_WEIGHT_CAP_V1
+  gs_location: gas_data_feed.gs:3816
+  notes: holdDays >= 60 && excessRet < 0 → TIME_STOP.
 - id: ANTI_WHIPSAW_GATE_V1_LIMIT
   value: 35.0
   unit: pct