Phase 1: OKR模板 — 两步弹窗(O+KR结构) + 14个CMA模板 + okr_templates表 + API

MapCanvasDialogs.vue:
- 节点编辑弹窗改为两步交互（模板选择→O+KR编辑）
- 第一步：按维度展示对应模板（财务4/客户3/流程4/学习3）
- 第二步：编辑O名称+描述+3个KR(名称/目标值/权重)
- 14个CMA标准模板硬编码在前端
- 支持添加/删除KR、自定义目标跳过模板

MapCanvas.vue:
- 传递 editingLayerKey 到弹窗
- onSaveDialog 适配新 O+KR 数据结构
- onNodeSave 存储 krs 和 template_name 字段

Backend:
- OKRTemplate 模型 (okr_templates 表)
- okr_templates API: GET(按维度筛选) + POST(用户自定义) + increment use_count
- seed_okr_templates.py 迁移脚本（建表+14条种子数据）
- 在 main.py 注册新路由

backend/app/api/okr.py

@@ -0,0 +1,106 @@
+"""
+OKR目标管理 API — 季度目标 + 关键结果 + KPI联动
+"""
+from fastapi import APIRouter, Depends, HTTPException, Query
+from sqlalchemy.orm import Session
+from sqlalchemy import func
+from datetime import datetime
+from typing import Optional
+from app.database import get_db
+from app.auth_middleware import require_role
+from app.models import Objective, ActionPlan
+
+router = APIRouter(prefix="/api/cma/okr", tags=["OKR目标管理"],
+    dependencies=[Depends(require_role("ceo", "finance", "it"))],
+)
+
+
+@router.get("")
+def list_objectives(
+    quarter: Optional[str] = Query(None, description="筛选季度: 2026Q3"),
+    dimension: Optional[str] = Query(None),
+    status: Optional[str] = Query(None),
+    db: Session = Depends(get_db),
+):
+    """列出OKR目标"""
+    q = db.query(Objective)
+    if quarter:
+        q = q.filter(Objective.quarter == quarter)
+    if dimension:
+        q = q.filter(Objective.dimension == dimension)
+    if status:
+        q = q.filter(Objective.status == status)
+    objs = q.order_by(Objective.quarter.desc(), Objective.id).all()
+    results = []
+    for o in objs:
+        krs = db.query(ActionPlan).filter(ActionPlan.objective_id == o.id).all()
+        kr_summary = [
+            {"id": kr.id, "title": kr.title, "status": kr.status, "progress": kr.progress}
+            for kr in krs
+        ]
+        results.append({
+            "id": o.id, "title": o.title, "description": o.description,
+            "dimension": o.dimension, "quarter": o.quarter,
+            "owner": o.owner, "status": o.status, "progress": o.progress,
+            "confidence": o.confidence,
+            "key_results": kr_summary,
+            "kr_count": len(krs),
+            "kr_completed": sum(1 for kr in krs if kr.status == "completed"),
+            "created_at": o.created_at.isoformat() if o.created_at else None,
+        })
+    return {"total": len(results), "items": results}
+
+
+@router.post("")
+def create_objective(
+    title: str = Query(...),
+    quarter: str = Query(...),
+    description: Optional[str] = Query(None),
+    dimension: Optional[str] = Query(None),
+    owner: Optional[str] = Query(None),
+    db: Session = Depends(get_db),
+):
+    """创建OKR目标"""
+    obj = Objective(title=title, quarter=quarter, description=description,
+                    dimension=dimension, owner=owner)
+    db.add(obj)
+    db.commit()
+    db.refresh(obj)
+    return {"ok": True, "id": obj.id, "title": obj.title}
+
+
+@router.get("/{obj_id}")
+def get_objective(obj_id: int, db: Session = Depends(get_db)):
+    """获取单个OKR详情"""
+    obj = db.query(Objective).filter(Objective.id == obj_id).first()
+    if not obj:
+        raise HTTPException(404, "目标不存在")
+    krs = db.query(ActionPlan).filter(ActionPlan.objective_id == obj_id).all()
+    return {
+        "objective": {
+            "id": obj.id, "title": obj.title, "description": obj.description,
+            "dimension": obj.dimension, "quarter": obj.quarter,
+            "owner": obj.owner, "status": obj.status, "progress": obj.progress,
+            "confidence": obj.confidence,
+        },
+        "key_results": [
+            {"id": kr.id, "title": kr.title, "kpi_id": kr.kpi_id,
+             "status": kr.status, "progress": kr.progress,
+             "due_date": kr.due_date.isoformat() if kr.due_date else None,
+             "assignee": kr.assignee}
+            for kr in krs
+        ]
+    }
+
+
+@router.patch("/{obj_id}")
+def update_objective(obj_id: int, db: Session = Depends(get_db)):
+    """更新OKR进度（通过查询ActionPlan自动计算）"""
+    obj = db.query(Objective).filter(Objective.id == obj_id).first()
+    if not obj:
+        raise HTTPException(404, "目标不存在")
+    krs = db.query(ActionPlan).filter(ActionPlan.objective_id == obj_id).all()
+    if krs:
+        obj.progress = sum(kr.progress for kr in krs) // len(krs)
+    db.commit()
+    return {"ok": True, "id": obj_id, "progress": obj.progress}