增加代码知识库；修复文档处理内容；增加API设置

rag-web-ui/backend/app/core/config.py

@@ -1,4 +1,5 @@
 import os
+import secrets
 from typing import List, Optional
 
 from pydantic_settings import BaseSettings
@@ -8,6 +9,7 @@ class Settings(BaseSettings):
     PROJECT_NAME: str = "RAG Web UI"  # Project name
     VERSION: str = "0.1.0"  # Project version
     API_V1_STR: str = "/api"  # API version string
+    ENVIRONMENT: str = os.getenv("ENVIRONMENT", os.getenv("APP_ENV", "development"))
 
     # MySQL settings
     MYSQL_SERVER: str = os.getenv("MYSQL_SERVER", "localhost")
@@ -27,7 +29,7 @@ class Settings(BaseSettings):
         )
 
     # JWT settings
-    SECRET_KEY: str = os.getenv("SECRET_KEY", "your-secret-key-here")
+    SECRET_KEY: str = os.getenv("SECRET_KEY", "")
     ALGORITHM: str = "HS256"
     ACCESS_TOKEN_EXPIRE_MINUTES: int = int(os.getenv("ACCESS_TOKEN_EXPIRE_MINUTES", "10080"))
 
@@ -48,9 +50,7 @@ class Settings(BaseSettings):
 
     # OpenAI settings
     OPENAI_API_BASE: str = os.getenv("OPENAI_API_BASE", "https://api.openai.com/v1")
-    OPENAI_API_KEY: str = os.getenv(
-        "OPENAI_API_KEY", os.getenv("API_KEY", "your-openai-api-key-here")
-    )
+    OPENAI_API_KEY: str = os.getenv("OPENAI_API_KEY", os.getenv("API_KEY", ""))
     OPENAI_MODEL: str = os.getenv("OPENAI_MODEL", "gpt-4")
     OPENAI_EMBEDDINGS_MODEL: str = os.getenv("OPENAI_EMBEDDINGS_MODEL", "text-embedding-ada-002")
 
@@ -63,7 +63,7 @@ class Settings(BaseSettings):
         "DASH_SCOPE_API_BASE", "https://dashscope.aliyuncs.com/compatible-mode/v1"
     )
     DASH_SCOPE_CHAT_MODEL: str = os.getenv("DASH_SCOPE_CHAT_MODEL", "qwen3-max")
-    DASH_SCOPE_EMBEDDINGS_MODEL: str = os.getenv("DASH_SCOPE_EMBEDDINGS_MODEL", "")
+    DASH_SCOPE_EMBEDDINGS_MODEL: str = os.getenv("DASH_SCOPE_EMBEDDINGS_MODEL", "text-embedding-v4")
 
     # Vector Store settings
     VECTOR_STORE_TYPE: str = os.getenv("VECTOR_STORE_TYPE", "chroma")
@@ -121,3 +121,7 @@ class Settings(BaseSettings):
 
 
 settings = Settings()
+if not settings.SECRET_KEY:
+    if settings.ENVIRONMENT.lower() in {"prod", "production"}:
+        raise ValueError("SECRET_KEY must be set in production.")
+    settings.SECRET_KEY = secrets.token_urlsafe(32)