Fix typo (#9766)

### What problem does this PR solve?

As title

### Type of change

- [x] Refactoring

Signed-off-by: Jin Hai <haijin.chn@gmail.com>

api/apps/chunk_app.py

@@ -93,6 +93,7 @@ def list_chunk():
 def get():
     chunk_id = request.args["chunk_id"]
     try:
+        chunk = None
         tenants = UserTenantService.query(user_id=current_user.id)
         if not tenants:
             return get_data_error_result(message="Tenant not found!")

api/apps/dialog_app.py

@@ -66,7 +66,7 @@ def set_dialog():
 
     if not is_create:
         if not req.get("kb_ids", []) and not prompt_config.get("tavily_api_key") and "{knowledge}" in prompt_config['system']:
-            return get_data_error_result(message="Please remove `{knowledge}` in system prompt since no knowledge base/Tavily used here.")
+            return get_data_error_result(message="Please remove `{knowledge}` in system prompt since no knowledge base / Tavily used here.")
 
         for p in prompt_config["parameters"]:
             if p["optional"]:

api/apps/llm_app.py

@@ -243,7 +243,7 @@ def add_llm():
                 model_name=mdl_nm,
                 base_url=llm["api_base"]
             )
-            arr, tc = mdl.similarity("Hello~ Ragflower!", ["Hi, there!", "Ohh, my friend!"])
+            arr, tc = mdl.similarity("Hello~ RAGFlower!", ["Hi, there!", "Ohh, my friend!"])
             if len(arr) == 0:
                 raise Exception("Not known.")
         except KeyError:
@@ -271,7 +271,7 @@ def add_llm():
             key=llm["api_key"], model_name=mdl_nm, base_url=llm["api_base"]
         )
         try:
-            for resp in mdl.tts("Hello~ Ragflower!"):
+            for resp in mdl.tts("Hello~ RAGFlower!"):
                 pass
         except RuntimeError as e:
             msg += f"\nFail to access model({factory}/{mdl_nm})." + str(e)

api/apps/mcp_server_app.py

@@ -82,7 +82,7 @@ def create() -> Response:
 
     server_name = req.get("name", "")
     if not server_name or len(server_name.encode("utf-8")) > 255:
-        return get_data_error_result(message=f"Invaild MCP name or length is {len(server_name)} which is large than 255.")
+        return get_data_error_result(message=f"Invalid MCP name or length is {len(server_name)} which is large than 255.")
 
     e, _ = MCPServerService.get_by_name_and_tenant(name=server_name, tenant_id=current_user.id)
     if e:
@@ -90,7 +90,7 @@ def create() -> Response:
 
     url = req.get("url", "")
     if not url:
-        return get_data_error_result(message="Invaild url.")
+        return get_data_error_result(message="Invalid url.")
 
     headers = safe_json_parse(req.get("headers", {}))
     req["headers"] = headers
@@ -141,10 +141,10 @@ def update() -> Response:
         return get_data_error_result(message="Unsupported MCP server type.")
     server_name = req.get("name", mcp_server.name)
     if server_name and len(server_name.encode("utf-8")) > 255:
-        return get_data_error_result(message=f"Invaild MCP name or length is {len(server_name)} which is large than 255.")
+        return get_data_error_result(message=f"Invalid MCP name or length is {len(server_name)} which is large than 255.")
     url = req.get("url", mcp_server.url)
     if not url:
-        return get_data_error_result(message="Invaild url.")
+        return get_data_error_result(message="Invalid url.")
 
     headers = safe_json_parse(req.get("headers", mcp_server.headers))
     req["headers"] = headers
@@ -218,7 +218,7 @@ def import_multiple() -> Response:
                 continue
 
             if not server_name or len(server_name.encode("utf-8")) > 255:
-                results.append({"server": server_name, "success": False, "message": f"Invaild MCP name or length is {len(server_name)} which is large than 255."})
+                results.append({"server": server_name, "success": False, "message": f"Invalid MCP name or length is {len(server_name)} which is large than 255."})
                 continue
 
             base_name = server_name
@@ -409,7 +409,7 @@ def test_mcp() -> Response:
 
     url = req.get("url", "")
     if not url:
-        return get_data_error_result(message="Invaild MCP url.")
+        return get_data_error_result(message="Invalid MCP url.")
 
     server_type = req.get("server_type", "")
     if server_type not in VALID_MCP_SERVER_TYPES:

api/apps/search_app.py

@@ -43,7 +43,7 @@ def create():
         return get_data_error_result(message=f"Search name length is {len(search_name)} which is large than 255.")
     e, _ = TenantService.get_by_id(current_user.id)
     if not e:
-        return get_data_error_result(message="Authorizationd identity.")
+        return get_data_error_result(message="Authorized identity.")
 
     search_name = search_name.strip()
     search_name = duplicate_name(SearchService.query, name=search_name, tenant_id=current_user.id, status=StatusEnum.VALID.value)
@@ -78,7 +78,7 @@ def update():
     tenant_id = req["tenant_id"]
     e, _ = TenantService.get_by_id(tenant_id)
     if not e:
-        return get_data_error_result(message="Authorizationd identity.")
+        return get_data_error_result(message="Authorized identity.")
 
     search_id = req["search_id"]
     if not SearchService.accessible4deletion(search_id, current_user.id):