Initial commit: clean project structure

- Backend: FastAPI + SQLAlchemy + Celery (Python 3.11+)
- Frontend: Vue 3 + TypeScript + Pinia + Tailwind
- Admin Frontend: separate Vue 3 app for management
- Docker Compose: 9 services orchestration
- Specs: design prototypes, memory system PRD, product roadmap

Cleanup performed:
- Removed temporary debug scripts from backend root
- Removed deprecated admin_app.py (embedded UI)
- Removed duplicate docs from admin-frontend
- Updated .gitignore for Vite cache and egg-info

backend/app/api/push_configs.py

@@ -0,0 +1,120 @@
+"""Push configuration APIs."""
+
+from datetime import time
+
+from fastapi import APIRouter, Depends, HTTPException, Response, status
+from pydantic import BaseModel
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.core.deps import require_user
+from app.db.database import get_db
+from app.db.models import ChildProfile, PushConfig, User
+
+router = APIRouter()
+
+
+class PushConfigUpsert(BaseModel):
+    """Upsert push config payload."""
+
+    child_profile_id: str
+    push_time: time | None = None
+    push_days: list[int] | None = None
+    enabled: bool | None = None
+
+
+class PushConfigResponse(BaseModel):
+    """Push config response."""
+
+    id: str
+    child_profile_id: str
+    push_time: time | None
+    push_days: list[int]
+    enabled: bool
+
+    class Config:
+        from_attributes = True
+
+
+class PushConfigListResponse(BaseModel):
+    """Push config list response."""
+
+    configs: list[PushConfigResponse]
+    total: int
+
+
+def _validate_push_days(push_days: list[int]) -> list[int]:
+    invalid = [day for day in push_days if day < 0 or day > 6]
+    if invalid:
+        raise HTTPException(status_code=400, detail="推送日期必须在 0-6 之间")
+    return list(dict.fromkeys(push_days))
+
+
+@router.get("/push-configs", response_model=PushConfigListResponse)
+async def list_push_configs(
+    user: User = Depends(require_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """List push configs for current user."""
+    result = await db.execute(
+        select(PushConfig).where(PushConfig.user_id == user.id)
+    )
+    configs = result.scalars().all()
+    return PushConfigListResponse(configs=configs, total=len(configs))
+
+
+@router.put("/push-configs", response_model=PushConfigResponse)
+async def upsert_push_config(
+    payload: PushConfigUpsert,
+    response: Response,
+    user: User = Depends(require_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """Create or update push config for a child profile."""
+    result = await db.execute(
+        select(ChildProfile).where(
+            ChildProfile.id == payload.child_profile_id,
+            ChildProfile.user_id == user.id,
+        )
+    )
+    profile = result.scalar_one_or_none()
+    if not profile:
+        raise HTTPException(status_code=404, detail="孩子档案不存在")
+
+    result = await db.execute(
+        select(PushConfig).where(PushConfig.child_profile_id == payload.child_profile_id)
+    )
+    config = result.scalar_one_or_none()
+
+    if config is None:
+        if payload.push_time is None or payload.push_days is None:
+            raise HTTPException(status_code=400, detail="创建配置需要提供推送时间和日期")
+        push_days = _validate_push_days(payload.push_days)
+        config = PushConfig(
+            user_id=user.id,
+            child_profile_id=payload.child_profile_id,
+            push_time=payload.push_time,
+            push_days=push_days,
+            enabled=True if payload.enabled is None else payload.enabled,
+        )
+        db.add(config)
+        await db.commit()
+        await db.refresh(config)
+        response.status_code = status.HTTP_201_CREATED
+        return config
+
+    updates = payload.model_dump(exclude_unset=True)
+    if "push_days" in updates and updates["push_days"] is not None:
+        updates["push_days"] = _validate_push_days(updates["push_days"])
+    if "push_time" in updates and updates["push_time"] is None:
+        raise HTTPException(status_code=400, detail="推送时间不能为空")
+
+    for key, value in updates.items():
+        if key == "child_profile_id":
+            continue
+        if value is not None:
+            setattr(config, key, value)
+
+    await db.commit()
+    await db.refresh(config)
+    return config