diff --git a/backend/cmd/server/VERSION b/backend/cmd/server/VERSION
index 7c415348a0..0cf91ff2a4 100644
--- a/backend/cmd/server/VERSION
+++ b/backend/cmd/server/VERSION
@@ -1 +1 @@
-0.1.93.25
+0.1.93.26
diff --git a/backend/internal/service/gateway_service.go b/backend/internal/service/gateway_service.go
index c3a53e0f4b..2c5eb3d001 100644
--- a/backend/internal/service/gateway_service.go
+++ b/backend/internal/service/gateway_service.go
@@ -42,7 +42,7 @@ const (
 	claudeAPICountTokensURL = "https://api.anthropic.com/v1/messages/count_tokens?beta=true"
 	stickySessionTTL        = time.Hour      // 粘性会话TTL
 	ClientAffinityTTL       = 24 * time.Hour // 客户端亲和TTL
-	defaultMaxLineSize      = 40 * 1024 * 1024
+	defaultMaxLineSize      = 500 * 1024 * 1024
 	// Canonical Claude Code banner. Keep it EXACT (no trailing whitespace/newlines)
 	// to match real Claude CLI traffic as closely as possible. When we need a visual
 	// separator between system blocks, we add "\n\n" at concatenation time.