feat: add Qwen install target

scripts/lib/install-targets/helpers.js

@@ -10,6 +10,7 @@ const PLATFORM_SOURCE_PATH_OWNERS = Object.freeze({
   '.joycode': 'joycode',
   '.opencode': 'opencode',
   '.codebuddy': 'codebuddy',
+  '.qwen': 'qwen',
 });
 
 function normalizeRelativePath(relativePath) {

scripts/lib/install-targets/qwen-home.js

@@ -0,0 +1,10 @@
+const { createInstallTargetAdapter } = require('./helpers');
+
+module.exports = createInstallTargetAdapter({
+  id: 'qwen-home',
+  target: 'qwen',
+  kind: 'home',
+  rootSegments: ['.qwen'],
+  installStatePathSegments: ['ecc-install-state.json'],
+  nativeRootRelativePath: '.qwen',
+});

scripts/lib/install-targets/registry.js

@@ -6,6 +6,7 @@ const cursorProject = require('./cursor-project');
 const geminiProject = require('./gemini-project');
 const joycodeProject = require('./joycode-project');
 const opencodeHome = require('./opencode-home');
+const qwenHome = require('./qwen-home');
 
 const ADAPTERS = Object.freeze([
   claudeHome,
@@ -16,6 +17,7 @@ const ADAPTERS = Object.freeze([
   opencodeHome,
   codebuddyProject,
   joycodeProject,
+  qwenHome,
 ]);
 
 function listInstallTargetAdapters() {