feat: AI Worker 平台 MVP v1.0.0 - 多租户/项目管理/AI Worker/任务编排/HITL审核/成本治理

backend/app/api/v1/dashboard.py

@@ -0,0 +1,49 @@
+"""Dashboard endpoints: overview stats."""
+from fastapi import APIRouter, Depends
+from sqlalchemy.orm import Session
+from sqlalchemy import func
+from app.database import get_db
+from app.api.deps import get_current_user
+from app.models.user import User
+from app.models.project import Project
+from app.models.task import Task
+from app.models.worker import AIWorker
+from app.models.review import Review
+from app.services.cost_service import CostService
+
+router = APIRouter(prefix="/dashboard")
+
+
+@router.get("")
+def dashboard(
+    user: User = Depends(get_current_user),
+    db: Session = Depends(get_db),
+):
+    tid = user.tenant_id
+
+    projects = db.query(Project).filter(Project.tenant_id == tid).count()
+    tasks = db.query(Task).filter(Task.tenant_id == tid)
+    workers = db.query(AIWorker).filter(AIWorker.tenant_id == tid, AIWorker.is_active == True).count()
+    pending_reviews = db.query(Review).filter(
+        Review.tenant_id == tid, Review.status == "pending"
+    ).count()
+
+    task_status_counts = {}
+    for row in db.query(Task.status, func.count()).filter(Task.tenant_id == tid).group_by(Task.status).all():
+        task_status_counts[row[0]] = row[1]
+
+    cost_summary = CostService.get_tenant_cost_summary(db, tid)
+
+    return {
+        "projects": projects,
+        "tasks": tasks.count(),
+        "active_workers": workers,
+        "pending_reviews": pending_reviews,
+        "task_status": task_status_counts,
+        "cost": cost_summary,
+        "user": {
+            "id": user.id,
+            "username": user.username,
+            "role": user.role,
+        },
+    }