feat(ui): 모든 중요 페이지에 [Authorize] 인가 가드 적용하여 보안 강화

src/dotnet/QuantEngine.Web/Client/Pages/Collection.razor

@@ -1,4 +1,5 @@
 @page "/collection"
+@attribute [Authorize]
 @using QuantEngine.Web.Client.Services
 @inject ApiClient ApiClient
 @inject ILogger<Collection> Logger

src/dotnet/QuantEngine.Web/Client/Pages/Dashboard.razor

@@ -1,4 +1,5 @@
 @page "/"
+@attribute [Authorize]
 @using QuantEngine.Core.Infrastructure
 @inject HttpClient Http
 

src/dotnet/QuantEngine.Web/Client/Pages/Operations.razor

@@ -1,4 +1,5 @@
 @page "/operations"
+@attribute [Authorize]
 @using QuantEngine.Core.Infrastructure
 @inject HttpClient Http
 

tools/validate_gitea_token_home_v1.py

@@ -29,6 +29,7 @@ def _request_json(url: str, token: str, method: str = "GET", body: dict[str, Any
     headers = {
         "Authorization": f"token {token}",
         "Accept": "application/json",
+        "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36",
     }
     if body is not None:
         headers["Content-Type"] = "application/json"