feat(KR): KR完整修复 — krs表打通+方向符号operator+权重自由输入

- 后端okr.py: KR读取从ActionPlan改为krs表, 新增KR CRUD API(POST/PUT/DELETE /okr/{objective_id}/krs) + 批量sync
- operator方向符号: krs表加operator/tolerance/weight/sort_order/monthly_milestones列
- progress方向感知计算(>=/>: current/target, <=/<: target/current, =: 容差), 达成→status=achieved
- 关联KPI自动继承方向(threshold_green解析: F_COST_RATIO<=18等)
- maps.py: 保存地图时自动同步objectives+krs表, JSON→krs数据迁移脚本
- 前端: 权重下拉改自由数字输入(可小数33.33) + 方向选择器(≥/≤/>/</=) + 自动平分按钮 + KPI方向继承提示
- pytest: 10个新测试(krs CRUD/方向感知/权重校验/多租户隔离) + 更新旧KR测试
- 迁移: 现有strategic_maps JSON 12条KR已写入krs表

backend/tests/test_bsc_okr_kpi_integration.py

@@ -10,7 +10,7 @@ from tests.conftest import (
     create_test_user, get_token_for_user, auth_header,
     create_test_kpi, create_test_map,
 )
-from app.models import Objective, ActionPlan, KPIDefinition, BscLayerConfig
+from app.models import Objective, ActionPlan, KPIDefinition, BscLayerConfig, KR
 
 
 # ============================================================
@@ -333,13 +333,21 @@ class TestOKRFullLifecycle:
         assert kr_data["status"] == "pending"
 
     def test_get_objective_with_krs(self, client: TestClient, db: Session):
-        """TC11: 查看OKR详情包含关联KR"""
+        """TC11: 查看OKR详情包含关联KR（KR完整修复2026-08-27: 从krs表读取）"""
         create_test_user(db)
         token = get_token_for_user(client)
         kpi = create_test_kpi(db, kpi_code="C_CHANNEL_REBATE")
         obj = create_test_objective(db, title="优化成本结构")
-        kr = create_test_kr(db, kpi_id=kpi.id, objective_id=obj.id,
-                            title="渠补率降到75%")
+        # KR落krs表（KR完整修复后，ActionPlan不再是KR存储）
+        kr = db.query(KR).filter(KR.objective_id == obj.id).first()
+        if not kr:
+            from app.models import KR as KRModel
+            kr = KRModel(entity_id=1, objective_id=obj.id, title="渠补率降到75%",
+                         metric_kpi_id=kpi.id, operator="<=", target_value=75,
+                         weight=33, status="pending", progress=0)
+            db.add(kr)
+            db.commit()
+            db.refresh(kr)
 
         resp = client.get(
             f"/api/cma/okr/{obj.id}",
@@ -353,15 +361,18 @@ class TestOKRFullLifecycle:
         assert kr_found, "KR应出现在OKR详情中"
 
     def test_objective_progress_from_krs(self, client: TestClient, db: Session):
-        """TC12: OKR进度随KR进度自动计算"""
+        """TC12: OKR进度随KR进度自动计算（KR完整修复2026-08-27: krs表）"""
         create_test_user(db)
         token = get_token_for_user(client)
         kpi = create_test_kpi(db)
         obj = create_test_objective(db)
-        kr1 = create_test_kr(db, kpi_id=kpi.id, objective_id=obj.id,
-                             title="KR1", progress=80)
-        kr2 = create_test_kr(db, kpi_id=kpi.id, objective_id=obj.id,
-                             title="KR2", progress=40)
+        from app.models import KR as KRModel
+        kr1 = KRModel(entity_id=1, objective_id=obj.id, title="KR1",
+                      metric_kpi_id=kpi.id, progress=80, weight=50)
+        kr2 = KRModel(entity_id=1, objective_id=obj.id, title="KR2",
+                      metric_kpi_id=kpi.id, progress=40, weight=50)
+        db.add_all([kr1, kr2])
+        db.commit()
 
         # 触发progress重算
         resp = client.patch(