Clean up old command references and remove legacy skills

- Remove old skill directories (cask, gask, oask, dask, lask)
- Update ask SKILL.md to reference `ping <provider>` instead of gping/cping/oping
- Update install messages to use new command names (ask/ping/pend)
- Remove empty commands/ directory

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: SeemSeam

codex_skills/ask/SKILL.md

@@ -41,4 +41,4 @@ EOF
 
 ## Notes
 
-- If it fails, check backend health with the corresponding ping command (gping/cping/oping/dping).
+- If it fails, check backend health with the corresponding ping command (`ping <provider>` (e.g., `ping gemini`)).

droid_skills/ask/SKILL.md

@@ -41,4 +41,4 @@ EOF
 
 ## Notes
 
-- If it fails, check backend health with the corresponding ping command (gping/cping/oping/dping).
+- If it fails, check backend health with the corresponding ping command (`ping <provider>` (e.g., `ping gemini`)).

droid_skills/cask/SKILL.md.powershell

@@ -73,7 +73,7 @@ function Get-Msg {
     "confirm_windows" = @{ en = "Continue installation in Windows? (y/N)"; zh = "确认继续在 Windows 中安装？(y/N)" }
     "cancelled" = @{ en = "Installation cancelled"; zh = "安装已取消" }
     "windows_warning" = @{ en = "You are installing ccb in native Windows environment"; zh = "你正在 Windows 原生环境安装 ccb" }
-    "same_env" = @{ en = "ccb/cask/cping/cpend must run in the same environment as codex/gemini."; zh = "ccb/cask/cping/cpend 必须与 codex/gemini 在同一环境运行。" }
+    "same_env" = @{ en = "ccb/ask/ping/pend must run in the same environment as codex/gemini."; zh = "ccb/ask/ping/pend 必须与 codex/gemini 在同一环境运行。" }
   }
   if ($msgs.ContainsKey($Key)) {
     return $msgs[$Key][$script:CCBLang]
@@ -171,7 +171,7 @@ function Confirm-BackendEnv {
   Write-Host "================================================================"
   Write-Host "[WARNING] You are installing ccb in native Windows environment"
   Write-Host "================================================================"
-  Write-Host "ccb/cask/cping/cpend must run in the same environment as codex/gemini."
+  Write-Host "ccb/ask/ping/pend must run in the same environment as codex/gemini."
   Write-Host ""
   Write-Host "Please confirm: You will install and run codex/gemini in native Windows (not WSL)."
   Write-Host "If you plan to run codex/gemini in WSL, exit and run in WSL:"

install.ps1

@@ -59,8 +59,8 @@ msg() {
       en_msg="Detected WSL environment"
       zh_msg="检测到 WSL 环境" ;;
     same_env_required)
-      en_msg="ccb/cask/cping/cpend must run in the same environment as codex/gemini."
-      zh_msg="ccb/cask/cping/cpend 必须与 codex/gemini 在同一环境运行。" ;;
+      en_msg="ccb/ask/ping/pend must run in the same environment as codex/gemini."
+      zh_msg="ccb/ask/ping/pend 必须与 codex/gemini 在同一环境运行。" ;;
     confirm_wsl_native)
       en_msg="Please confirm: you will install and run codex/gemini in WSL (not Windows native)."
       zh_msg="请确认：你将在 WSL 中安装并运行 codex/gemini（不是 Windows 原生）。" ;;
@@ -283,7 +283,7 @@ confirm_backend_env_wsl() {
   echo "================================================================"
   echo "WARN: Detected WSL environment"
   echo "================================================================"
-  echo "ccb/cask/cping/cpend must run in the same environment as codex/gemini."
+  echo "ccb/ask/ping/pend must run in the same environment as codex/gemini."
   echo
   echo "Please confirm: you will install and run codex/gemini in WSL (not Windows native)."
   echo "If you plan to run codex/gemini in Windows native, exit and run on Windows side:"

install.sh

@@ -41,4 +41,4 @@ EOF
 
 ## Notes
 
-- If it fails, check backend health with the corresponding ping command (gping/cping/oping/dping).
+- If it fails, check backend health with `ping <provider>` (e.g., `ping gemini`).

skills/ask/SKILL.md

@@ -46,4 +46,4 @@ EOF
 
 ## Notes
 
-- If it fails, check backend health with the corresponding ping command (gping/cping/oping/dping).
+- If it fails, check backend health with the corresponding ping command (`ping <provider>` (e.g., `ping gemini`)).