refactor(gas): GAS 중복 함수 제거 및 루트 레벨 stale .gs 파일 정리

- gas_apex_alpha_watch.gs: gas_apex_runtime_core.gs의 5개 실 구현을 shadowing하던
  stub/구버전 제거 (applyApexMacroAlphaSuiteImpl_, applyApexMacroEventSuiteImpl_,
  calcConsistencyValidatorV2Impl_, calcMacroEventSynchronizerV1Impl_,
  calcMacroRegimeAdaptiveGateV2Impl_)
- gas_lib.gs: gdf_05_alpha_engines.gs로 이전된 runAlphaFeedbackLoop_,
  getAlphaFeedbackJson_ 스테일 사본 제거
- 루트 레벨 .gs 8개 삭제: src/gas/ 구조 이전 전 구버전, 배포 경로 밖 dead code

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/gas/engines/gas_apex_alpha_watch.gs

@@ -91,94 +91,6 @@ function calcAntiLateEntryGateV2Impl_(holdings, dfMap) {
   return results;
 }
 
-/**
- * PA5: CONSISTENCY_VALIDATOR_V2
- * [P0 GAP 해소 - 데이터 정합성 검증]
- */
-function calcConsistencyValidatorV2Impl_(hApex, asResult, cashFloorInfo, capturedAtIso, now) {
-  var checks = [];
-  var passed = [];
-  var failed = [];
-  var gapList = [];
-  
-  // CV_01: sell_priority 방향 일관성
-  var sellCandidates = hApex.sell_candidates_json || [];
-  var tierOk = true;
-  for (var i = 1; i < sellCandidates.length; i++) {
-    if (sellCandidates[i].tier < sellCandidates[i-1].tier) {
-      tierOk = false;
-      break;
-    }
-  }
-  if (tierOk) passed.push('CV_01'); else failed.push({check_id: 'CV_01', reason: 'tier_reversal'});
-
-  // CV_02: 가격 순서 검증
-  var prices = hApex.prices_json || [];
-  var priceOk = true;
-  for (var i = 0; i < prices.length; i++) {
-    var p = prices[i];
-    if (p.stop_price && p.current_price && p.stop_price >= p.current_price) priceOk = false;
-  }
-  if (priceOk) passed.push('CV_02'); else failed.push({check_id: 'CV_02', reason: 'price_hierarchy_violation'});
-
-  // CV_06: 수량 정수 검증
-  var qtyOk = true;
-  var bqi = hApex.buy_qty_inputs_json || [];
-  for (var i = 0; i < bqi.length; i++) {
-    if (bqi[i].final_qty && bqi[i].final_qty % 1 !== 0) qtyOk = false;
-  }
-  if (qtyOk) passed.push('CV_06'); else failed.push({check_id: 'CV_06', reason: 'float_quantity'});
-
-  // CV_08: 현금 계산 경로
-  if (hApex.cash_ledger_basis === 'D2_ONLY') passed.push('CV_08');
-  else failed.push({check_id: 'CV_08', reason: 'invalid_cash_basis'});
-
-  // Score 계산
-  var score = Math.floor((passed.length / 12) * 100);
-  var status = score >= 90 ? (score === 100 ? 'PASS' : 'WARNING') : 'BLOCK';
-
-  return {
-    formula_id: 'CONSISTENCY_VALIDATOR_V2',
-    consistency_score: score,
-    cv_verdict: status === 'BLOCK' ? 'ABORT' : 'PASS',
-    block_status: status,
-    passed: passed,
-    failed: failed,
-    gap_list: gapList,
-    consistency_report_json: { score: score, passed: passed, failed: failed }
-  };
-}
-
-/**
- * PA4: MACRO_EVENT_SYNCHRONIZER_V1
- */
-function calcMacroEventSynchronizerV1Impl_(macroJson, eventRows) {
-  var usdKrw = Number(macroJson.usd_krw || 0);
-  var foreignSellDays = Number(macroJson.foreign_sell_consecutive_days || 0);
-  
-  var score = 0;
-  if (usdKrw > 1500) score += 20;
-  else if (usdKrw > 1480) score += 15;
-  
-  if (foreignSellDays >= 10) score += 20;
-  else if (foreignSellDays >= 5) score += 15;
-  
-  var regime = 'MACRO_NEUTRAL';
-  var heatAdj = 0;
-  if (score >= 60) { regime = 'MACRO_CRITICAL'; heatAdj = -3; }
-  else if (score >= 40) { regime = 'MACRO_ELEVATED'; heatAdj = -1; }
-  else if (score < 20) { regime = 'MACRO_FAVORABLE'; heatAdj = 1; }
-
-  return {
-    formula_id: 'MACRO_EVENT_SYNCHRONIZER_V1',
-    macro_risk_score: score,
-    macro_risk_regime: regime,
-    effective_heat_gate_adjustment: heatAdj,
-    mega_sell_alert: false,
-    macro_event_json: { score: score, regime: regime, heat_gate_adj: heatAdj }
-  };
-}
-
 /**
  * PA1: PREDICTIVE_ALPHA_ENGINE_V1
  */
@@ -216,29 +128,6 @@ function calcPredictiveAlphaEngineV1Impl_(holdings, dfMap, macroJson, mesResult,
   return results;
 }
 
-/**
- * MACRO_REGIME_ADAPTIVE_GATE_V2
- */
-function calcMacroRegimeAdaptiveGateV2Impl_(macroJson, mesResult, hApex) {
-  var totalScore = mesResult.macro_risk_score || 0;
-  var regime = 'MODERATE_RISK';
-  var heatThreshold = 10.0;
-  var sizeScale = 1.0;
-
-  if (totalScore >= 75) { regime = 'EXTREME_RISK'; heatThreshold = 5.0; sizeScale = 0.25; }
-  else if (totalScore >= 50) { regime = 'HIGH_RISK'; heatThreshold = 7.0; sizeScale = 0.50; }
-  else if (totalScore < 25) { regime = 'LOW_RISK'; heatThreshold = 12.0; sizeScale = 1.10; }
-
-  return {
-    formula_id: 'MACRO_REGIME_ADAPTIVE_GATE_V2',
-    total_mrag_score: totalScore,
-    regime_label: regime,
-    effective_heat_gate_threshold: heatThreshold,
-    effective_position_size_scale: sizeScale,
-    mrag_v2_json: { score: totalScore, regime: regime }
-  };
-}
-
 /**
  * applyAlegGate4And5Impl_
  */
@@ -263,19 +152,6 @@ function applyAlegGate4And5Impl_(alegRows, paeRows, hApex) {
   return results;
 }
 
-/**
- * Suite Aggregators
- */
-function applyApexMacroAlphaSuiteImpl_(holdings, dfMap, hApex) {
-  // Placeholder for macro alpha suite
-  return hApex;
-}
-
-function applyApexMacroEventSuiteImpl_(hApex) {
-  // Placeholder for macro event suite
-  return hApex;
-}
-
 function applyApexPredictiveAlphaSuiteImpl_(holdings, dfMap, hApex) {
   var macroJson = hApex.macro_event_json || {};
   var mesResult = hApex.macro_event_json || {};