fix: add platform-specific keybinding (mac=cmd+alt+c, win/linux=ctrl+alt+c)

package.json

@@ -75,22 +75,26 @@
     },
     "keybindings": [
       {
-        "key": "cmd+alt+c",
+        "key": "ctrl+alt+c",
+        "mac": "cmd+alt+c",
         "command": "copy-ai-ctx.copySelection",
         "when": "editorHasSelection"
       },
       {
-        "key": "cmd+alt+c",
+        "key": "ctrl+alt+c",
+        "mac": "cmd+alt+c",
         "command": "copy-ai-ctx.copyFile",
         "when": "!editorHasSelection && editorFocus"
       },
       {
-        "key": "cmd+alt+c",
+        "key": "ctrl+alt+c",
+        "mac": "cmd+alt+c",
         "command": "copy-ai-ctx.copySelectedFiles",
         "when": "explorerViewletVisible && !listMultiSelection"
       },
       {
-        "key": "cmd+alt+c",
+        "key": "ctrl+alt+c",
+        "mac": "cmd+alt+c",
         "command": "copy-ai-ctx.copyMultiFiles",
         "when": "explorerViewletVisible && listMultiSelection"
       }