refactor(url): remove automatic trailing slash stripping from base URL inputs

- Remove `.replace(/\/+$/, "")` from all base URL handlers in useBaseUrlState.ts
- Remove trailing slash stripping in useCodexConfigState.ts
- Remove trailing slash normalization in providerConfigUtils.ts setCodexBaseUrl()
- Update i18n hints (en/ja/zh) to instruct users to avoid trailing slashes

This gives users explicit control over URL format rather than silently modifying input.

src/components/providers/forms/hooks/useBaseUrlState.ts

@@ -41,7 +41,7 @@ export function useBaseUrlState({
     try {
       const config = JSON.parse(settingsConfig || "{}");
       const envUrl: unknown = config?.env?.ANTHROPIC_BASE_URL;
-      if (typeof envUrl === "string" && envUrl && envUrl !== baseUrl) {
+      if (typeof envUrl === "string" && envUrl && envUrl.trim() !== baseUrl) {
         setBaseUrl(envUrl.trim());
       }
     } catch {
@@ -73,8 +73,7 @@ export function useBaseUrlState({
     try {
       const config = JSON.parse(settingsConfig || "{}");
       const envUrl: unknown = config?.env?.GOOGLE_GEMINI_BASE_URL;
-      const nextUrl =
-        typeof envUrl === "string" ? envUrl.trim().replace(/\/+$/, "") : "";
+      const nextUrl = typeof envUrl === "string" ? envUrl.trim() : "";
       if (nextUrl !== geminiBaseUrl) {
         setGeminiBaseUrl(nextUrl);
         setBaseUrl(nextUrl); // 也更新 baseUrl 用于 UI
@@ -87,7 +86,7 @@ export function useBaseUrlState({
   // 处理 Claude Base URL 变化
   const handleClaudeBaseUrlChange = useCallback(
     (url: string) => {
-      const sanitized = url.trim().replace(/\/+$/, "");
+      const sanitized = url.trim();
       setBaseUrl(sanitized);
       isUpdatingRef.current = true;
 
@@ -112,7 +111,7 @@ export function useBaseUrlState({
   // 处理 Codex Base URL 变化
   const handleCodexBaseUrlChange = useCallback(
     (url: string) => {
-      const sanitized = url.trim().replace(/\/+$/, "");
+      const sanitized = url.trim();
       setCodexBaseUrl(sanitized);
 
       if (!sanitized || !onCodexConfigChange) {
@@ -136,7 +135,7 @@ export function useBaseUrlState({
   // 处理 Gemini Base URL 变化
   const handleGeminiBaseUrlChange = useCallback(
     (url: string) => {
-      const sanitized = url.trim().replace(/\/+$/, "");
+      const sanitized = url.trim();
       setGeminiBaseUrl(sanitized);
       setBaseUrl(sanitized); // 也更新 baseUrl 用于 UI
       isUpdatingRef.current = true;

src/components/providers/forms/hooks/useCodexConfigState.ts

@@ -162,7 +162,7 @@ export function useCodexConfigState({ initialData }: UseCodexConfigStateProps) {
   // 处理 Codex Base URL 变化
   const handleCodexBaseUrlChange = useCallback(
     (url: string) => {
-      const sanitized = url.trim().replace(/\/+$/, "");
+      const sanitized = url.trim();
       setCodexBaseUrl(sanitized);
 
       if (!sanitized) {

src/i18n/locales/en.json

@@ -272,7 +272,7 @@
     "fastModel": "Fast Model (optional)",
     "fastModelPlaceholder": "e.g., GLM-4.5-Air",
     "modelHint": "💡 Leave blank to use provider's default model",
-    "apiHint": "💡 Fill in Claude API compatible service endpoint",
+    "apiHint": "💡 Fill in Claude API compatible service endpoint, avoid trailing slash",
     "codexApiHint": "💡 Fill in service endpoint compatible with OpenAI Response format",
     "fillSupplierName": "Please fill in provider name",
     "fillConfigContent": "Please fill in configuration content",

src/i18n/locales/ja.json

@@ -272,7 +272,7 @@
     "fastModel": "高速モデル（任意）",
     "fastModelPlaceholder": "例: GLM-4.5-Air",
     "modelHint": "💡 空欄ならプロバイダーのデフォルトモデルを使用します",
-    "apiHint": "💡 Claude API 互換サービスのエンドポイントを入力してください",
+    "apiHint": "💡 Claude API 互換サービスのエンドポイントを入力してください。末尾にスラッシュを付けないでください",
     "codexApiHint": "💡 OpenAI Response 互換のサービスエンドポイントを入力してください",
     "fillSupplierName": "プロバイダー名を入力してください",
     "fillConfigContent": "設定内容を入力してください",

src/i18n/locales/zh.json

@@ -272,7 +272,7 @@
     "fastModel": "快速模型 (可选)",
     "fastModelPlaceholder": "例如: GLM-4.5-Air",
     "modelHint": "💡 留空将使用供应商的默认模型",
-    "apiHint": "💡 填写兼容 Claude API 的服务端点地址",
+    "apiHint": "💡 填写兼容 Claude API 的服务端点地址，不要以斜杠结尾",
     "codexApiHint": "💡 填写兼容 OpenAI Response 格式的服务端点地址",
     "fillSupplierName": "请填写供应商名称",
     "fillConfigContent": "请填写配置内容",

src/utils/providerConfigUtils.ts

@@ -453,7 +453,7 @@ export const setCodexBaseUrl = (
   // 归一化原文本中的引号（既能匹配，也能输出稳定格式）
   const normalizedText = normalizeQuotes(configText);
 
-  const normalizedUrl = trimmed.replace(/\s+/g, "").replace(/\/+$/, "");
+  const normalizedUrl = trimmed.replace(/\s+/g, "");
   const replacementLine = `base_url = "${normalizedUrl}"`;
   const pattern = /base_url\s*=\s*(["'])([^"']+)\1/;