Add admin-frontend and user-frontend standalone projects, certification/invoice/discovery features, fix auth header and theme consistency

backend/app/config.py

@@ -1,4 +1,4 @@
-from pydantic import BaseSettings
+from pydantic_settings import BaseSettings
 from typing import Optional
 from pathlib import Path
 
@@ -8,10 +8,11 @@ ENV_FILE = PROJECT_ROOT / ".env"
 
 
 class Settings(BaseSettings):
-    class Config:
-        env_file = str(ENV_FILE)
-        env_file_encoding = "utf-8"
-        extra = "ignore"
+    model_config = {
+        "env_file": str(ENV_FILE),
+        "env_file_encoding": "utf-8",
+        "extra": "ignore",
+    }
 
     APP_NAME: str = "TradeMate"
 
@@ -71,6 +72,9 @@ class Settings(BaseSettings):
 
     EXCHANGE_RATE_API_KEY: Optional[str] = None
 
+    GOOGLE_API_KEY: Optional[str] = None
+    GOOGLE_CSE_ID: Optional[str] = None
+
     UPLOAD_DIR: str = "./uploads"
     MAX_UPLOAD_SIZE: int = 10 * 1024 * 1024