fix: include closing brace in tool call arguments substring extraction

src/common/AutoModel/modeling_nanbeige.cpp

@@ -295,7 +295,7 @@ NonStreamResult Nanbeige::parse_nstream_content(const std::string response_text)
             size_t brace_end = json_str.rfind("}"); // Find the last closing brace
 
             if (brace_start != std::string::npos && brace_end != std::string::npos && brace_end > brace_start) {
-                arguments = json_str.substr(brace_start, brace_end - brace_start);
+                arguments = json_str.substr(brace_start, brace_end - brace_start + 1);
             }
         }
 

src/common/AutoModel/modeling_qwen2.cpp

@@ -133,7 +133,7 @@ NonStreamResult Qwen2::parse_nstream_content(const std::string response_text) {
         size_t brace_end = json_str.rfind("}"); // Find the last closing brace
 
         if (brace_start != std::string::npos && brace_end != std::string::npos && brace_end > brace_start) {
-            arguments = json_str.substr(brace_start, brace_end - brace_start);
+            arguments = json_str.substr(brace_start, brace_end - brace_start + 1);
         }
     }
 

src/common/AutoModel/modeling_qwen3.cpp

@@ -148,7 +148,7 @@ NonStreamResult Qwen3::parse_nstream_content(const std::string response_text) {
             size_t brace_end = json_str.rfind("}"); // Find the last closing brace
 
             if (brace_start != std::string::npos && brace_end != std::string::npos && brace_end > brace_start) {
-                arguments = json_str.substr(brace_start, brace_end - brace_start);
+                arguments = json_str.substr(brace_start, brace_end - brace_start + 1);
             }
         }
 
@@ -293,7 +293,7 @@ NonStreamResult Qwen3_IT::parse_nstream_content(const std::string response_text)
         size_t brace_end = json_str.rfind("}"); // Find the last closing brace
 
         if (brace_start != std::string::npos && brace_end != std::string::npos && brace_end > brace_start) {
-            arguments = json_str.substr(brace_start, brace_end - brace_start);
+            arguments = json_str.substr(brace_start, brace_end - brace_start + 1);
         }
     }
 
@@ -497,7 +497,7 @@ NonStreamResult Qwen3_TK::parse_nstream_content(const std::string response_text)
             size_t brace_end = json_str.rfind("}"); // Find the last closing brace
 
             if (brace_start != std::string::npos && brace_end != std::string::npos && brace_end > brace_start) {
-                arguments = json_str.substr(brace_start, brace_end - brace_start);
+                arguments = json_str.substr(brace_start, brace_end - brace_start + 1);
             }
         }
 

src/common/AutoModel/modeling_qwen3_5vl.cpp

@@ -255,7 +255,7 @@ NonStreamResult Qwen3_5VL::parse_nstream_content(const std::string response_text
         size_t brace_end = json_str.rfind("}"); // Find the last closing brace
 
         if (brace_start != std::string::npos && brace_end != std::string::npos && brace_end > brace_start) {
-            arguments = json_str.substr(brace_start, brace_end - brace_start);
+            arguments = json_str.substr(brace_start, brace_end - brace_start + 1);
         }
     }
 

src/common/AutoModel/modeling_qwen3vl.cpp

@@ -245,7 +245,7 @@ NonStreamResult Qwen3VL::parse_nstream_content(const std::string response_text)
         size_t brace_end = json_str.rfind("}"); // Find the last closing brace
 
         if (brace_start != std::string::npos && brace_end != std::string::npos && brace_end > brace_start) {
-            arguments = json_str.substr(brace_start, brace_end - brace_start);
+            arguments = json_str.substr(brace_start, brace_end - brace_start + 1);
         }
     }