refactor: split monolithic main.py into FastAPI routers (v0.2.0)

- app/api/deps.py: shared auth dependencies
- app/api/routers/auth.py: login, me
- app/api/routers/issues.py: CRUD, transition, assign, relations, tags, batch, search
- app/api/routers/projects.py: CRUD, members, worklog summary
- app/api/routers/users.py: CRUD, worklogs
- app/api/routers/comments.py: CRUD
- app/api/routers/webhooks.py: CRUD, logs, retry
- app/api/routers/misc.py: API keys, activity, milestones, notifications, worklogs, export, dashboard
- main.py: 1165 lines → 51 lines
- Version bump to 0.2.0

app/api/deps.py

@@ -0,0 +1,78 @@
+"""Shared auth dependencies."""
+from datetime import datetime, timedelta
+from fastapi import Depends, HTTPException, status
+from fastapi.security import OAuth2PasswordBearer, APIKeyHeader
+from jose import JWTError, jwt
+from passlib.context import CryptContext
+from sqlalchemy.orm import Session
+from pydantic import BaseModel
+
+from app.core.config import get_db, settings
+from app.models import models
+from app.models.apikey import APIKey
+
+pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
+oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/auth/token", auto_error=False)
+apikey_header = APIKeyHeader(name="X-API-Key", auto_error=False)
+
+
+class Token(BaseModel):
+    access_token: str
+    token_type: str
+
+
+def verify_password(plain_password: str, hashed_password: str) -> bool:
+    if not hashed_password:
+        return False
+    return pwd_context.verify(plain_password, hashed_password)
+
+
+def get_password_hash(password: str) -> str:
+    return pwd_context.hash(password[:72])
+
+
+def create_access_token(data: dict, expires_delta: timedelta = None) -> str:
+    to_encode = data.copy()
+    expire = datetime.utcnow() + (expires_delta or timedelta(minutes=30))
+    to_encode.update({"exp": expire})
+    return jwt.encode(to_encode, settings.SECRET_KEY, algorithm=settings.ALGORITHM)
+
+
+async def get_current_user(token: str = Depends(oauth2_scheme), db: Session = Depends(get_db)):
+    credentials_exception = HTTPException(
+        status_code=status.HTTP_401_UNAUTHORIZED,
+        detail="Could not validate credentials",
+        headers={"WWW-Authenticate": "Bearer"},
+    )
+    if not token:
+        raise credentials_exception
+    try:
+        payload = jwt.decode(token, settings.SECRET_KEY, algorithms=[settings.ALGORITHM])
+        user_id = payload.get("sub")
+        if user_id is None:
+            raise credentials_exception
+    except JWTError:
+        raise credentials_exception
+    user = db.query(models.User).filter(models.User.id == user_id).first()
+    if user is None:
+        raise credentials_exception
+    return user
+
+
+async def get_current_user_or_apikey(
+    token: str = Depends(oauth2_scheme),
+    api_key: str = Depends(apikey_header),
+    db: Session = Depends(get_db)
+):
+    """Authenticate via JWT token OR API key."""
+    if api_key:
+        key_obj = db.query(APIKey).filter(APIKey.key == api_key, APIKey.is_active == True).first()
+        if key_obj:
+            key_obj.last_used_at = datetime.utcnow()
+            db.commit()
+            user = db.query(models.User).filter(models.User.id == key_obj.user_id).first()
+            if user:
+                return user
+    if token:
+        return await get_current_user(token=token, db=db)
+    raise HTTPException(status_code=401, detail="Not authenticated")