Merge branch 'router-for-me:main' into main

**feat(antigravity): add support for maxOutputTokens and refine Claude model handling**

internal/runtime/executor/antigravity_executor.go

@@ -728,7 +728,7 @@ func geminiToAntigravity(modelName string, payload []byte, projectID string) []b
 
 	template, _ = sjson.Delete(template, "request.safetySettings")
 	template, _ = sjson.Set(template, "request.toolConfig.functionCallingConfig.mode", "VALIDATED")
-	template, _ = sjson.Delete(template, "request.generationConfig.maxOutputTokens")
+
 	if !strings.HasPrefix(modelName, "gemini-3-") {
 		if thinkingLevel := gjson.Get(template, "request.generationConfig.thinkingConfig.thinkingLevel"); thinkingLevel.Exists() {
 			template, _ = sjson.Delete(template, "request.generationConfig.thinkingConfig.thinkingLevel")
@@ -736,7 +736,7 @@ func geminiToAntigravity(modelName string, payload []byte, projectID string) []b
 		}
 	}
 
-	if strings.HasPrefix(modelName, "claude-sonnet-") {
+	if strings.Contains(modelName, "claude") {
 		gjson.Get(template, "request.tools").ForEach(func(key, tool gjson.Result) bool {
 			tool.Get("functionDeclarations").ForEach(func(funKey, funcDecl gjson.Result) bool {
 				if funcDecl.Get("parametersJsonSchema").Exists() {
@@ -748,6 +748,8 @@ func geminiToAntigravity(modelName string, payload []byte, projectID string) []b
 			})
 			return true
 		})
+	} else {
+		template, _ = sjson.Delete(template, "request.generationConfig.maxOutputTokens")
 	}
 
 	return []byte(template)

internal/translator/antigravity/claude/antigravity_claude_request.go

@@ -181,6 +181,9 @@ func ConvertClaudeRequestToAntigravity(modelName string, inputRawJSON []byte, _
 	if v := gjson.GetBytes(rawJSON, "top_k"); v.Exists() && v.Type == gjson.Number {
 		out, _ = sjson.Set(out, "request.generationConfig.topK", v.Num)
 	}
+	if v := gjson.GetBytes(rawJSON, "max_tokens"); v.Exists() && v.Type == gjson.Number {
+		out, _ = sjson.Set(out, "request.generationConfig.maxOutputTokens", v.Num)
+	}
 
 	outBytes := []byte(out)
 	outBytes = common.AttachDefaultSafetySettings(outBytes, "request.safetySettings")

internal/translator/antigravity/openai/chat-completions/antigravity_openai_request.go

@@ -263,7 +263,7 @@ func ConvertOpenAIRequestToAntigravity(modelName string, inputRawJSON []byte, _
 						out, _ = sjson.SetRawBytes(out, "request.contents.-1", node)
 
 						// Append a single tool content combining name + response per function
-						toolNode := []byte(`{"role":"tool","parts":[]}`)
+						toolNode := []byte(`{"role":"user","parts":[]}`)
 						pp := 0
 						for _, fid := range fIDs {
 							if name, ok := tcID2Name[fid]; ok {