feat: CONAI Phase 1 MVP 초기 구현

소형 건설업체(100억 미만)를 위한 AI 기반 토목공사 통합관리 플랫폼

Backend (FastAPI):
- SQLAlchemy 모델 13개 (users, projects, wbs, tasks, daily_reports, reports, inspections, quality, weather, permits, rag, settings)
- API 라우터 11개 (auth, projects, tasks, daily_reports, reports, inspections, weather, rag, kakao, permits, settings)
- Services: Claude AI 래퍼, CPM Gantt 계산, 기상청 API, RAG(pgvector), 카카오 Skill API
- Alembic 마이그레이션 (pgvector 포함)
- pytest 테스트 (CPM, 날씨 경보)

Frontend (Next.js 15):
- 11개 페이지 (대시보드, 프로젝트, Gantt, 일보, 검측, 품질, 날씨, 인허가, RAG, 설정)
- TanStack Query + Zustand + Tailwind CSS

인프라:
- Docker Compose (PostgreSQL pgvector + backend + frontend)
- 한국어 README 및 설치 가이드

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

backend/app/deps.py

@@ -0,0 +1,56 @@
+from typing import Annotated
+from fastapi import Depends, HTTPException, status
+from fastapi.security import OAuth2PasswordBearer
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy import select
+from app.core.database import get_db
+from app.core.security import decode_token
+from app.models.user import User
+
+oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/v1/auth/login")
+
+
+async def get_current_user(
+    token: Annotated[str, Depends(oauth2_scheme)],
+    db: Annotated[AsyncSession, Depends(get_db)],
+) -> User:
+    credentials_exception = HTTPException(
+        status_code=status.HTTP_401_UNAUTHORIZED,
+        detail="인증 정보가 유효하지 않습니다",
+        headers={"WWW-Authenticate": "Bearer"},
+    )
+    payload = decode_token(token)
+    if not payload or payload.get("type") != "access":
+        raise credentials_exception
+
+    user_id: str = payload.get("sub")
+    if not user_id:
+        raise credentials_exception
+
+    result = await db.execute(select(User).where(User.id == user_id, User.is_active == True))
+    user = result.scalar_one_or_none()
+    if not user:
+        raise credentials_exception
+    return user
+
+
+async def get_current_active_user(
+    current_user: Annotated[User, Depends(get_current_user)],
+) -> User:
+    if not current_user.is_active:
+        raise HTTPException(status_code=400, detail="비활성 계정입니다")
+    return current_user
+
+
+async def require_admin(
+    current_user: Annotated[User, Depends(get_current_active_user)],
+) -> User:
+    from app.models.user import UserRole
+    if current_user.role != UserRole.ADMIN:
+        raise HTTPException(status_code=403, detail="관리자 권한이 필요합니다")
+    return current_user
+
+
+# Convenience type aliases
+CurrentUser = Annotated[User, Depends(get_current_active_user)]
+DB = Annotated[AsyncSession, Depends(get_db)]