refactor, add cad

.vscode/settings.json

@@ -58,5 +58,36 @@
   "C_Cpp_Runner.useLeakSanitizer": false,
   "C_Cpp_Runner.showCompilationTime": false,
   "C_Cpp_Runner.useLinkTimeOptimization": false,
-  "C_Cpp_Runner.msvcSecureNoWarnings": false
+  "C_Cpp_Runner.msvcSecureNoWarnings": false,
+  "files.associations": {
+    "string_view": "c",
+    "json_object.h": "c",
+    "system_error": "c",
+    "devicemgr.h": "c",
+    "thread": "c",
+    "wsserver.h": "c",
+    "sfbus.h": "c",
+    "mctrl.h": "c",
+    "condition_variable": "c",
+    "array": "c",
+    "type_traits": "c",
+    "global.h": "c",
+    "stdint.h": "c",
+    "any": "c",
+    "deque": "c",
+    "list": "c",
+    "string": "c",
+    "vector": "c",
+    "optional": "c",
+    "algorithm": "c",
+    "istream": "c",
+    "limits": "c",
+    "numeric": "c",
+    "streambuf": "c",
+    "functional": "c",
+    "variant": "c",
+    "*.def": "c",
+    "unistd.h": "c"
+  },
+  "C_Cpp.errorSquiggles": "enabled"
 }