✨ feat(vscode): worktree 打开方式可选 VS Code/PyCharm，并修复 handleOpenWorktree 不展开 ~ 的打开报错

- worktree.ts: handleOpenWorktree/handleDeleteWorktree/dispatchImplTabPostCloseAsync 三处改用 resolveWorktreePath，修复带 ~ 的存量路径被拼成 <工作区>/~/... 导致打不开
- 新增全局设置 worktreeOpenWith（'vscode' | 'pycharm'，默认 vscode），贯穿 store/settings handler/messages/KanbanPanel 与 webview 的 messages/useIssues/App/SettingsModal「钩子」分组新增「工作树打开方式」下拉
- handleOpenWorktree 按设置分支：pycharm 走 JetBrains pycharm 启动器，ENOENT 时提示启用命令行启动器

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

vscode/src/settings/store.ts

@@ -94,6 +94,12 @@ export interface Settings {
    * `~/Sources/worktree/$project_name/$feature_name`".
    */
   worktreeDirectory: string
+  /**
+   * Which editor opens a worktree when the user clicks it in the detail
+   * panel. `'pycharm'` shells out to the JetBrains `pycharm` launcher;
+   * `'vscode'` (default) opens a new VS Code window.
+   */
+  worktreeOpenWith: 'vscode' | 'pycharm'
   /**
    * Path to a user-provided shell script that runs *after* the extension
    * creates a worktree via `git worktree add`. Empty string means use the
@@ -166,6 +172,7 @@ function defaults(ctx: ExtensionContext): Settings {
     devBranch: 'main',
     autoBuildBranch: '',
     worktreeDirectory: '~/Sources/worktree/$project_name/$feature_name',
+    worktreeOpenWith: 'vscode',
     worktreePostCreateScript: '',
     worktreePreRemoveScript: '',
     implTabPreCreateScript: '',
@@ -214,6 +221,11 @@ export function getSettings(ctx: ExtensionContext): Settings {
   const worktreeDirectory = typeof stored.worktreeDirectory === 'string' && stored.worktreeDirectory.length > 0
     ? stored.worktreeDirectory
     : base.worktreeDirectory
+  // worktreeOpenWith is an enum — only the two known values are valid; anything
+  // else (legacy installs, garbage) collapses to the default.
+  const worktreeOpenWith = stored.worktreeOpenWith === 'pycharm' || stored.worktreeOpenWith === 'vscode'
+    ? stored.worktreeOpenWith
+    : base.worktreeOpenWith
   // worktree hook script paths: '' is meaningful (= "use default
   // .spx/worktree-*.sh"), so don't coerce. Non-string legacy values fall
   // back to ''. The hook runner resolves '' to the default at execution
@@ -253,6 +265,7 @@ export function getSettings(ctx: ExtensionContext): Settings {
     devBranch,
     autoBuildBranch,
     worktreeDirectory,
+    worktreeOpenWith,
     worktreePostCreateScript,
     worktreePreRemoveScript,
     implTabPreCreateScript,