fix: dynamic access path setup failure

Author: fit2cloud-chenyw

backend/common/core/config.py

@@ -31,7 +31,6 @@ class Settings(BaseSettings):
     PROJECT_NAME: str = "SQLBot"
     #CONTEXT_PATH: str = "/sqlbot"
     CONTEXT_PATH: str = ""
-    API_V1_STR: str = CONTEXT_PATH + "/api/v1"
     SECRET_KEY: str = secrets.token_urlsafe(32)
     # 60 minutes * 24 hours * 8 days = 8 days
     ACCESS_TOKEN_EXPIRE_MINUTES: int = 60 * 24 * 8
@@ -48,6 +47,11 @@ def all_cors_origins(self) -> list[str]:
             self.FRONTEND_HOST
         ]
 
+    @computed_field  # type: ignore[prop-decorator]
+    @property
+    def API_V1_STR(self) -> str:
+        return self.CONTEXT_PATH + "/api/v1"
+
     POSTGRES_SERVER: str = 'localhost'
     POSTGRES_PORT: int = 5432
     POSTGRES_USER: str = 'root'