refactor(proxy): remove beta query handling

src-tauri/src/proxy/forwarder.rs

@@ -1170,21 +1170,6 @@ fn split_endpoint_and_query(endpoint: &str) -> (&str, Option<&str>) {
         .map_or((endpoint, None), |(path, query)| (path, Some(query)))
 }
 
-fn filter_beta_query(query: Option<&str>) -> Option<String> {
-    let filtered = query.map(|query| {
-        query
-            .split('&')
-            .filter(|pair| !pair.is_empty() && !pair.starts_with("beta="))
-            .collect::<Vec<_>>()
-            .join("&")
-    });
-
-    match filtered.as_deref() {
-        Some("") | None => None,
-        Some(_) => filtered,
-    }
-}
-
 fn is_claude_messages_path(path: &str) -> bool {
     matches!(path, "/v1/messages" | "/claude/v1/messages")
 }
@@ -1195,14 +1180,10 @@ fn rewrite_claude_transform_endpoint(
     is_copilot: bool,
 ) -> (String, Option<String>) {
     let (path, query) = split_endpoint_and_query(endpoint);
-    let filtered_query = if is_claude_messages_path(path) {
-        filter_beta_query(query)
-    } else {
-        query.map(ToString::to_string)
-    };
+    let passthrough_query = query.map(ToString::to_string);
 
     if !is_claude_messages_path(path) {
-        return (endpoint.to_string(), filtered_query);
+        return (endpoint.to_string(), passthrough_query);
     }
 
     let target_path = if is_copilot {
@@ -1213,12 +1194,12 @@ fn rewrite_claude_transform_endpoint(
         "/v1/chat/completions"
     };
 
-    let rewritten = match filtered_query.as_deref() {
+    let rewritten = match passthrough_query.as_deref() {
         Some(query) if !query.is_empty() => format!("{target_path}?{query}"),
         _ => target_path.to_string(),
     };
 
-    (rewritten, filtered_query)
+    (rewritten, passthrough_query)
 }
 
 fn append_query_to_full_url(base_url: &str, query: Option<&str>) -> String {
@@ -1343,9 +1324,9 @@ mod tests {
     }
 
     #[test]
-    fn rewrite_claude_transform_endpoint_strips_beta_for_chat_completions() {
+    fn rewrite_claude_transform_endpoint_preserves_query_for_chat_completions() {
         let (endpoint, passthrough_query) = rewrite_claude_transform_endpoint(
-            "/v1/messages?beta=true&foo=bar",
+            "/v1/messages?foo=bar",
             "openai_chat",
             false,
         );
@@ -1355,9 +1336,9 @@ mod tests {
     }
 
     #[test]
-    fn rewrite_claude_transform_endpoint_strips_only_beta_for_responses() {
+    fn rewrite_claude_transform_endpoint_preserves_query_for_responses() {
         let (endpoint, passthrough_query) = rewrite_claude_transform_endpoint(
-            "/claude/v1/messages?beta=true&x-id=1",
+            "/claude/v1/messages?x-id=1",
             "openai_responses",
             false,
         );
@@ -1369,7 +1350,7 @@ mod tests {
     #[test]
     fn rewrite_claude_transform_endpoint_uses_copilot_path() {
         let (endpoint, passthrough_query) =
-            rewrite_claude_transform_endpoint("/v1/messages?beta=true&x-id=1", "anthropic", true);
+            rewrite_claude_transform_endpoint("/v1/messages?x-id=1", "anthropic", true);
 
         assert_eq!(endpoint, "/chat/completions?x-id=1");
         assert_eq!(passthrough_query.as_deref(), Some("x-id=1"));

src-tauri/src/proxy/providers/claude.rs

@@ -299,8 +299,6 @@ impl ProviderAdapter for ClaudeAdapter {
         // 现在 OpenRouter 已推出 Claude Code 兼容接口，因此默认直接透传 endpoint。
         // 如需回退旧逻辑，可在 forwarder 中根据 needs_transform 改写 endpoint。
         //
-        // `?beta=true` 由客户端请求决定，代理不再硬编码追加。
-
         let mut base = format!(
             "{}/{}",
             base_url.trim_end_matches('/'),
@@ -312,24 +310,7 @@ impl ProviderAdapter for ClaudeAdapter {
             base = base.replace("/v1/v1", "/v1");
         }
 
-        // GitHub Copilot 不需要 ?beta=true 参数
-        if base_url.contains("githubcopilot.com") {
-            return base;
-        }
-
-        // 为 Claude 原生 /v1/messages 端点添加 ?beta=true 参数
-        // 这是某些上游服务（如 DuckCoding）验证请求来源的关键参数
-        // 注意：不要为 OpenAI Chat Completions (/v1/chat/completions) 添加此参数
-        //       当 apiFormat="openai_chat" 时，请求会转发到 /v1/chat/completions，
-        //       但该端点是 OpenAI 标准，不支持 ?beta=true 参数
-        if endpoint.contains("/v1/messages")
-            && !endpoint.contains("/v1/chat/completions")
-            && !endpoint.contains('?')
-        {
-            format!("{base}?beta=true")
-        } else {
-            base
-        }
+        base
     }
 
     fn add_auth_headers(&self, request: RequestBuilder, auth: &AuthInfo) -> RequestBuilder {
@@ -578,14 +559,14 @@ mod tests {
     fn test_build_url_anthropic() {
         let adapter = ClaudeAdapter::new();
         let url = adapter.build_url("https://api.anthropic.com", "/v1/messages");
-        assert_eq!(url, "https://api.anthropic.com/v1/messages?beta=true");
+        assert_eq!(url, "https://api.anthropic.com/v1/messages");
     }
 
     #[test]
     fn test_build_url_openrouter() {
         let adapter = ClaudeAdapter::new();
         let url = adapter.build_url("https://openrouter.ai/api", "/v1/messages");
-        assert_eq!(url, "https://openrouter.ai/api/v1/messages?beta=true");
+        assert_eq!(url, "https://openrouter.ai/api/v1/messages");
     }
 
     #[test]
@@ -612,8 +593,6 @@ mod tests {
     #[test]
     fn test_build_url_no_beta_for_openai_chat_completions() {
         let adapter = ClaudeAdapter::new();
-        // OpenAI Chat Completions 端点不添加 ?beta=true
-        // 这是 Nvidia 等 apiFormat="openai_chat" 供应商使用的端点
         let url = adapter.build_url("https://integrate.api.nvidia.com", "/v1/chat/completions");
         assert_eq!(url, "https://integrate.api.nvidia.com/v1/chat/completions");
     }

src-tauri/src/services/stream_check.rs

@@ -738,9 +738,9 @@ impl StreamCheckService {
                 format!("{base}/v1/chat/completions")
             }
         } else if base.ends_with("/v1") {
-            format!("{base}/messages?beta=true")
+            format!("{base}/messages")
         } else {
-            format!("{base}/v1/messages?beta=true")
+            format!("{base}/v1/messages")
         }
     }
 }
@@ -903,6 +903,6 @@ mod tests {
             false,
         );
 
-        assert_eq!(url, "https://api.anthropic.com/v1/messages?beta=true");
+        assert_eq!(url, "https://api.anthropic.com/v1/messages");
     }
 }