feat: add codex-iterm skill

skills/codex-iterm/scripts/run_codex_iterm.applescript

@@ -0,0 +1,15 @@
+on run argv
+    if (count of argv) is 0 then
+        error "Expected shell command argument"
+    end if
+    set shellCommand to item 1 of argv
+    tell application "iTerm"
+        activate
+        if (count of windows) = 0 then
+            create window with default profile
+        end if
+        tell current session of current window
+            write text shellCommand
+        end tell
+    end tell
+end run