feat: configure Gitea deployment and environment-managed WorldQuant credentials

backend/app/config.py

@@ -1,12 +1,16 @@
 """Deployment configuration; secrets are required and never included in API responses."""
 
+from pathlib import Path
+
 from cryptography.fernet import Fernet
 from pydantic import Field, SecretStr, model_validator
 from pydantic_settings import BaseSettings, SettingsConfigDict
 
 
 class Settings(BaseSettings):
-    model_config = SettingsConfigDict(env_file="../.env", extra="ignore")
+    model_config = SettingsConfigDict(
+        env_file=Path(__file__).resolve().parents[2] / ".env", extra="ignore", hide_input_in_errors=True
+    )
 
     database_url: str = "postgresql+asyncpg://wq:wq@localhost:5432/wq"
     admin_username: str = "admin"
@@ -15,6 +19,8 @@ class Settings(BaseSettings):
     public_origin: str = "http://localhost:8080"
     cookie_secure: bool = False
     session_hours: int = Field(default=24, ge=1, le=168)
+    wq_email: str = ""
+    wq_password: SecretStr = SecretStr("")
     wq_base_url: str = "https://api.worldquantbrain.com"
     request_timeout: float = 30
     retry_attempts: int = Field(default=4, ge=1, le=8)
@@ -26,6 +32,9 @@ class Settings(BaseSettings):
 
     @model_validator(mode="after")
     def validate_secrets(self):
+        self.wq_email = self.wq_email.strip()
+        if bool(self.wq_email) != bool(self.wq_password.get_secret_value()):
+            raise ValueError("WQ_EMAIL and WQ_PASSWORD must be configured together")
         Fernet(self.encryption_key.get_secret_value().encode())
         if self.cookie_secure and not self.public_origin.startswith("https://"):
             raise ValueError("COOKIE_SECURE requires an HTTPS PUBLIC_ORIGIN")