Initial commit: NextGen PPR System

- FastAPI backend with JWT authentication
- MySQL database with full schema
- Docker Compose orchestration
- CSV data import for 43,208 airports and 519,999 aircraft
- Complete PPR management API
- Modernized replacement for PHP-based system

backend/app/core/__init__.py

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+# Empty __init__.py files to make Python packages

backend/app/core/config.py

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+from pydantic_settings import BaseSettings
+from typing import Optional
+
+
+class Settings(BaseSettings):
+    # Database settings
+    db_host: str = "db"  # Docker service name
+    db_user: str = "ppr_user"
+    db_password: str = "ppr_password123"
+    db_name: str = "ppr_nextgen"
+    db_port: int = 3306
+    
+    # Security settings
+    secret_key: str = "your-secret-key-change-this-in-production"
+    algorithm: str = "HS256"
+    access_token_expire_minutes: int = 30
+    
+    # Mail settings
+    mail_host: str = "send.one.com"
+    mail_port: int = 465
+    mail_username: str = "noreply@swansea-airport.wales"
+    mail_password: str = "SASAGoForward2155"
+    mail_from: str = "noreply@swansea-airport.wales"
+    mail_from_name: str = "Swansea Airport"
+    
+    # Application settings
+    api_v1_str: str = "/api/v1"
+    project_name: str = "Airfield PPR API"
+    base_url: str = "https://pprdev.swansea-airport.wales"
+    
+    # Redis settings (for future use)
+    redis_url: Optional[str] = None
+    
+    class Config:
+        env_file = ".env"
+        case_sensitive = False
+
+    @property
+    def database_url(self) -> str:
+        return f"mysql+pymysql://{self.db_user}:{self.db_password}@{self.db_host}:{self.db_port}/{self.db_name}"
+
+
+settings = Settings()

backend/app/core/security.py

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+from datetime import datetime, timedelta
+from typing import Optional, Union
+from jose import JWTError, jwt
+from passlib.context import CryptContext
+from fastapi import HTTPException, status
+from app.core.config import settings
+
+pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
+
+def create_access_token(
+    subject: Union[str, int], expires_delta: Optional[timedelta] = None
+) -> str:
+    """Create a new access token"""
+    if expires_delta:
+        expire = datetime.utcnow() + expires_delta
+    else:
+        expire = datetime.utcnow() + timedelta(
+            minutes=settings.access_token_expire_minutes
+        )
+    
+    to_encode = {"exp": expire, "sub": str(subject)}
+    encoded_jwt = jwt.encode(to_encode, settings.secret_key, algorithm=settings.algorithm)
+    return encoded_jwt
+
+
+def verify_password(plain_password: str, hashed_password: str) -> bool:
+    """Verify a password against its hash"""
+    return pwd_context.verify(plain_password, hashed_password)
+
+
+def get_password_hash(password: str) -> str:
+    """Generate password hash"""
+    return pwd_context.hash(password)
+
+
+def verify_token(token: str) -> Optional[str]:
+    """Verify JWT token and return username"""
+    try:
+        payload = jwt.decode(
+            token, settings.secret_key, algorithms=[settings.algorithm]
+        )
+        username: str = payload.get("sub")
+        if username is None:
+            return None
+        return username
+    except JWTError:
+        return None