fix: updates.rb 处理 Gitee raw URL 302 重定向

src/updates.rb

@@ -32,14 +32,21 @@ class UpdateManager
   def self.fetch
     MethodExecutor.record('debug', 'updates', "Fetching version list from #{VERSION_LIST_URL}")
     uri = URI(VERSION_LIST_URL)
-    response = Net::HTTP.get_response(uri)
-    case response.code.to_i
-    when 200
-      MethodExecutor.record('debug', 'updates', 'Version list fetched successfully.')
-      response.body
-    else
-      raise "Unexpected HTTP response code: #{response.code}"
+    5.times do # 跟随重定向（Gitee raw URL → raw.giteeusercontent.com）
+      response = Net::HTTP.get_response(uri)
+      case response.code.to_i
+      when 200
+        MethodExecutor.record('debug', 'updates', 'Version list fetched successfully.')
+        return response.body
+      when 301, 302, 307, 308
+        uri = URI(response['location'])
+        MethodExecutor.record('debug', 'updates', "Following redirect to #{uri}")
+        next
+      else
+        raise "Unexpected HTTP response code: #{response.code}"
+      end
     end
+    raise 'Too many redirects'
   rescue StandardError => e
     MethodExecutor.record('error', 'updates', "Failed to fetch version list: #{e}")
     nil