feat(proxy): 添加本地代理请求覆盖功能，支持自定义请求头和请求体 (#4589)

* feat(proxy): 添加本地代理请求覆盖功能，支持自定义请求头和请求体

* fix(proxy): harden local request overrides validation

* feat(proxy): 添加受保护的本地代理请求头名称验证功能

* fix(i18n): 更新本地代理请求覆盖的错误提示信息格式

---------

Co-authored-by: jason.mei <jason.mei@ucloud.cn>

src/i18n/locales/en.json

@@ -1067,6 +1067,13 @@
     "customUserAgentHint": "Only takes effect when local routing/proxy takeover is enabled; replaces the User-Agent in requests forwarded to the provider API.",
     "customUserAgentInvalid": "User-Agent must not contain control characters (e.g. line breaks); otherwise it will be ignored.",
     "customUserAgentPresets": "Presets",
+    "localProxyRequestOverrides": "Local proxy request overrides",
+    "localProxyRequestOverridesHint": "Only takes effect after local routing/proxy takeover; applied to the transformed upstream request.",
+    "localProxyRequestOverridesInvalid": "Local proxy request overrides format error: {{error}}",
+    "localProxyHeaderOverrides": "Header overrides",
+    "localProxyHeaderOverridesInvalidDetail": "Header overrides format error: {{error}}",
+    "localProxyBodyOverrides": "Body overrides",
+    "localProxyBodyOverridesInvalidDetail": "Body overrides format error: {{error}}",
     "fullUrlLabel": "Full URL",
     "fullUrlEnabled": "Full URL Mode",
     "fullUrlDisabled": "Mark as Full URL",

src/i18n/locales/ja.json

@@ -1067,6 +1067,13 @@
     "customUserAgentHint": "ローカルルーティング/プロキシ引き継ぎが有効な場合にのみ適用され、プロバイダー API へ転送するリクエストの User-Agent を置き換えます。",
     "customUserAgentInvalid": "User-Agent に制御文字（改行など）を含めることはできません。含まれている場合は無視されます。",
     "customUserAgentPresets": "プリセット",
+    "localProxyRequestOverrides": "ローカルプロキシのリクエスト上書き",
+    "localProxyRequestOverridesHint": "ローカルルーティング/プロキシ引き継ぎ後にのみ有効で、変換後の上流リクエストへ適用されます。",
+    "localProxyRequestOverridesInvalid": "ローカルプロキシのリクエスト上書き形式エラー: {{error}}",
+    "localProxyHeaderOverrides": "Header 上書き",
+    "localProxyHeaderOverridesInvalidDetail": "Header 上書きの形式エラー: {{error}}",
+    "localProxyBodyOverrides": "Body 上書き",
+    "localProxyBodyOverridesInvalidDetail": "Body 上書きの形式エラー: {{error}}",
     "fullUrlLabel": "フル URL",
     "fullUrlEnabled": "フル URL モード",
     "fullUrlDisabled": "フル URL として設定",

src/i18n/locales/zh-TW.json

@@ -1039,6 +1039,13 @@
     "customUserAgentHint": "僅在開啟本地路由/代理接管後生效，會取代轉發至供應商 API 請求中的 User-Agent。",
     "customUserAgentInvalid": "User-Agent 不能包含控制字元（如換行字元），否則將被忽略。",
     "customUserAgentPresets": "預設",
+    "localProxyRequestOverrides": "本地代理請求覆蓋",
+    "localProxyRequestOverridesHint": "僅在本地路由/代理接管後生效，套用於協定轉換後的上游請求。",
+    "localProxyRequestOverridesInvalid": "本地代理請求覆蓋格式錯誤：{{error}}",
+    "localProxyHeaderOverrides": "Header 覆蓋",
+    "localProxyHeaderOverridesInvalidDetail": "Header 覆蓋格式錯誤：{{error}}",
+    "localProxyBodyOverrides": "Body 覆蓋",
+    "localProxyBodyOverridesInvalidDetail": "Body 覆蓋格式錯誤：{{error}}",
     "fullUrlLabel": "完整 URL",
     "fullUrlEnabled": "完整 URL 模式",
     "fullUrlDisabled": "標記為完整 URL",

src/i18n/locales/zh.json

@@ -1067,6 +1067,13 @@
     "customUserAgentHint": "仅在开启本地路由/代理接管后生效，会替换转发到供应商 API 请求中的 User-Agent。",
     "customUserAgentInvalid": "User-Agent 不能包含控制字符（如换行符），否则将被忽略。",
     "customUserAgentPresets": "预设",
+    "localProxyRequestOverrides": "本地代理请求覆盖",
+    "localProxyRequestOverridesHint": "仅在本地路由/代理接管后生效，应用于协议转换后的上游请求。",
+    "localProxyRequestOverridesInvalid": "本地代理请求覆盖格式错误：{{error}}",
+    "localProxyHeaderOverrides": "Header 覆盖",
+    "localProxyHeaderOverridesInvalidDetail": "Header 覆盖格式错误：{{error}}",
+    "localProxyBodyOverrides": "Body 覆盖",
+    "localProxyBodyOverridesInvalidDetail": "Body 覆盖格式错误：{{error}}",
     "fullUrlLabel": "完整 URL",
     "fullUrlEnabled": "完整 URL 模式",
     "fullUrlDisabled": "标记为完整 URL",