feat: Add Qwen Code support

- Add Qwen Code target for converting Claude Code plugins
- Implement claude-to-qwen converter with agent/command/skill mapping
- Write qwen-extension.json config with MCP servers and settings
- Generate QWEN.md context file with plugin documentation
- Support nested commands with colon separator (workflows:plan)
- Extract MCP environment placeholders as settings
- Add --to qwen and --qwen-home CLI options
- Document Qwen installation in README

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

src/commands/install.ts

@@ -25,7 +25,7 @@ export default defineCommand({
     to: {
       type: "string",
       default: "opencode",
-      description: "Target format (opencode | codex | droid | cursor | pi | copilot | gemini | kiro)",
+      description: "Target format (opencode | codex | droid | cursor | pi | copilot | gemini | kiro | qwen)",
     },
     output: {
       type: "string",
@@ -42,6 +42,11 @@ export default defineCommand({
       alias: "pi-home",
       description: "Write Pi output to this Pi root (ex: ~/.pi/agent or ./.pi)",
     },
+    qwenHome: {
+      type: "string",
+      alias: "qwen-home",
+      description: "Write Qwen output to this Qwen extensions root (ex: ~/.qwen/extensions/compound-engineering)",
+    },
     also: {
       type: "string",
       description: "Comma-separated extra targets to generate (ex: codex)",
@@ -84,6 +89,7 @@ export default defineCommand({
       const outputRoot = resolveOutputRoot(args.output)
       const codexHome = resolveTargetHome(args.codexHome, path.join(os.homedir(), ".codex"))
       const piHome = resolveTargetHome(args.piHome, path.join(os.homedir(), ".pi", "agent"))
+      const qwenHome = resolveTargetHome(args.qwenHome, path.join(os.homedir(), ".qwen", "extensions", "compound-engineering"))
 
       const options = {
         agentMode: String(args.agentMode) === "primary" ? "primary" : "subagent",
@@ -178,6 +184,10 @@ function resolveTargetOutputRoot(
 ): string {
   if (targetName === "codex") return codexHome
   if (targetName === "pi") return piHome
+  if (targetName === "qwen") {
+    const base = hasExplicitOutput ? outputRoot : path.join(os.homedir(), ".qwen", "extensions")
+    return path.join(base, "compound-engineering")
+  }
   if (targetName === "droid") return path.join(os.homedir(), ".factory")
   if (targetName === "cursor") {
     const base = hasExplicitOutput ? outputRoot : process.cwd()