feat(claude-executor): add ZSTD decoding support for Claude executor responses

- Integrated ZSTD decompression via `github.com/klauspost/compress` for responses with "zstd" content-encoding.
- Added helper `hasZSTDEcoding` to detect ZSTD-encoded responses.
- Updated response handling logic to initialize and use a ZSTD decoder when necessary.

refactor(api-handlers): split streaming and non-streaming response handling

- Introduced `handleNonStreamingResponse` for processing non-streaming requests in `ClaudeCodeAPIHandler`.
- Improved code clarity by separating streaming and non-streaming logic.

fix(service): remove redundant token refresh interval assignment logic in `cliproxy` service.

go.mod

@@ -30,6 +30,7 @@ require (
 	github.com/go-playground/validator/v10 v10.20.0 // indirect
 	github.com/goccy/go-json v0.10.2 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/compress v1.17.3 // indirect
 	github.com/klauspost/cpuid/v2 v2.2.7 // indirect
 	github.com/leodido/go-urn v1.4.0 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect

go.sum

@@ -36,6 +36,8 @@ github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
 github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
+github.com/klauspost/compress v1.17.3 h1:qkRjuerhUU1EmXLYGkSH6EZL+vPSxIrYjLNAK4slzwA=
+github.com/klauspost/compress v1.17.3/go.mod h1:/dCuZOvVtNoHsyb+cuJD3itjs3NbnF6KH9zAO4BDxPM=
 github.com/klauspost/cpuid/v2 v2.0.9/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa0213Md/qVLRg=
 github.com/klauspost/cpuid/v2 v2.2.7 h1:ZWSB3igEs+d0qvnxR/ZBzXVmxkgt8DdzP6m9pfuVLDM=
 github.com/klauspost/cpuid/v2 v2.2.7/go.mod h1:Lcz8mBdAVJIBVzewtcLocK12l3Y+JytZYpaMropDUws=

internal/api/handlers/claude/code_handlers.go

@@ -76,11 +76,11 @@ func (h *ClaudeCodeAPIHandler) ClaudeMessages(c *gin.Context) {
 	// Check if the client requested a streaming response.
 	streamResult := gjson.GetBytes(rawJSON, "stream")
 	if !streamResult.Exists() || streamResult.Type == gjson.False {
-		return
-	}
-
+		h.handleNonStreamingResponse(c, rawJSON)
+	} else {
 		h.handleStreamingResponse(c, rawJSON)
 	}
+}
 
 // ClaudeModels handles the Claude models listing endpoint.
 // It returns a JSON response containing available Claude models and their specifications.
@@ -93,6 +93,32 @@ func (h *ClaudeCodeAPIHandler) ClaudeModels(c *gin.Context) {
 	})
 }
 
+// handleNonStreamingResponse handles non-streaming content generation requests for Claude models.
+// This function processes the request synchronously and returns the complete generated
+// response in a single API call. It supports various generation parameters and
+// response formats.
+//
+// Parameters:
+//   - c: The Gin context for the request
+//   - modelName: The name of the Gemini model to use for content generation
+//   - rawJSON: The raw JSON request body containing generation parameters and content
+func (h *ClaudeCodeAPIHandler) handleNonStreamingResponse(c *gin.Context, rawJSON []byte) {
+	c.Header("Content-Type", "application/json")
+	alt := h.GetAlt(c)
+	cliCtx, cliCancel := h.GetContextWithCancel(h, c, context.Background())
+
+	modelName := gjson.GetBytes(rawJSON, "model").String()
+
+	resp, errMsg := h.ExecuteWithAuthManager(cliCtx, h.HandlerType(), modelName, rawJSON, alt)
+	if errMsg != nil {
+		h.WriteErrorResponse(c, errMsg)
+		cliCancel(errMsg.Error)
+		return
+	}
+	_, _ = c.Writer.Write(resp)
+	cliCancel()
+}
+
 // handleStreamingResponse streams Claude-compatible responses backed by Gemini.
 // It sets up SSE, selects a backend client with rotation/quota logic,
 // forwards chunks, and translates them to Claude CLI format.

internal/runtime/executor/claude_executor.go

@@ -10,6 +10,7 @@ import (
 	"strings"
 	"time"
 
+	"github.com/klauspost/compress/zstd"
 	claudeauth "github.com/router-for-me/CLIProxyAPI/v6/internal/auth/claude"
 	"github.com/router-for-me/CLIProxyAPI/v6/internal/config"
 	"github.com/router-for-me/CLIProxyAPI/v6/internal/misc"
@@ -66,14 +67,28 @@ func (e *ClaudeExecutor) Execute(ctx context.Context, auth *cliproxyauth.Auth, r
 	if err != nil {
 		return cliproxyexecutor.Response{}, err
 	}
-	defer func() { _ = resp.Body.Close() }()
+	defer func() {
+		if errClose := resp.Body.Close(); errClose != nil {
+			log.Errorf("response body close error: %v", errClose)
+		}
+	}()
 	if resp.StatusCode < 200 || resp.StatusCode >= 300 {
 		b, _ := io.ReadAll(resp.Body)
 		appendAPIResponseChunk(ctx, e.cfg, b)
 		log.Debugf("request error, error status: %d, error body: %s", resp.StatusCode, string(b))
 		return cliproxyexecutor.Response{}, statusErr{code: resp.StatusCode, msg: string(b)}
 	}
-	data, err := io.ReadAll(resp.Body)
+	reader := io.Reader(resp.Body)
+	var decoder *zstd.Decoder
+	if hasZSTDEcoding(resp.Header.Get("Content-Encoding")) {
+		decoder, err = zstd.NewReader(resp.Body)
+		if err != nil {
+			return cliproxyexecutor.Response{}, fmt.Errorf("failed to initialize zstd decoder: %w", err)
+		}
+		reader = decoder
+		defer decoder.Close()
+	}
+	data, err := io.ReadAll(reader)
 	if err != nil {
 		return cliproxyexecutor.Response{}, err
 	}
@@ -180,6 +195,19 @@ func (e *ClaudeExecutor) Refresh(ctx context.Context, auth *cliproxyauth.Auth) (
 	return auth, nil
 }
 
+func hasZSTDEcoding(contentEncoding string) bool {
+	if contentEncoding == "" {
+		return false
+	}
+	parts := strings.Split(contentEncoding, ",")
+	for i := range parts {
+		if strings.EqualFold(strings.TrimSpace(parts[i]), "zstd") {
+			return true
+		}
+	}
+	return false
+}
+
 func applyClaudeHeaders(r *http.Request, apiKey string, stream bool) {
 	r.Header.Set("Authorization", "Bearer "+apiKey)
 	r.Header.Set("Content-Type", "application/json")

sdk/cliproxy/service.go

@@ -322,9 +322,6 @@ func (s *Service) Run(ctx context.Context) error {
 	// Prefer core auth manager auto refresh if available.
 	if s.coreManager != nil {
 		interval := 15 * time.Minute
-		if sec := s.cfg.GeminiWeb.TokenRefreshSeconds; sec > 0 {
-			interval = time.Duration(sec) * time.Second
-		}
 		s.coreManager.StartAutoRefresh(context.Background(), interval)
 		log.Infof("core auth auto-refresh started (interval=%s)", interval)
 	}