♻️ refactor(vscode): 抽出 worktreePath 模块（slug / 目录模板解析）

Claude-Session: https://claude.ai/code/session_011cEyL6k351U2BzX1Qmygph

vscode/src/panel/handlers/sessions.ts

@@ -1,7 +1,6 @@
 import type { Terminal } from 'vscode'
 import type { KanbanWebviewPanel } from '../KanbanPanel'
 import { execFile } from 'node:child_process'
-import { createHash } from 'node:crypto'
 import * as fs from 'node:fs'
 import { promises as fsp } from 'node:fs'
 import * as os from 'node:os'
@@ -16,6 +15,7 @@ import { resolveProfilePath } from '../../cc/profiles'
 import { getBrainstormContinuePrompt, getImplementPlanPrompt } from '../../cc/prompts'
 import { projectsDirFor, watchForNewSession } from '../../cc/sessionWatcher'
 import { detectRepo } from '../../git/remote'
+import { DEFAULT_WORKTREE_TEMPLATE, deriveSlug, resolveWorktreeDir } from '../../git/worktreePath'
 import { ensureWorktree, resolveWorktreePath } from '../../git/worktree'
 import { updateIssueAssignees } from '../../gitea/api'
 import { logger } from '../../logging/logger'
@@ -634,50 +634,9 @@ async function triggerAutoReviewTabUnlocked(panel: KanbanWebviewPanel, opts: {
   return true
 }
 
-/**
- * Derive a human-readable slug from a spec/plan file path.
- *
- * spec/plan live as directories on disk
- * (docs/superpowers/{specs,plans}/<slug>/{spec,plan}.md), so the slug is the
- * path segment right after the `specs`/`plans` segment — that's the name the
- * user sees in the tree. Falls back to the parent dir name, then to a stable
- * 8-char sha256 of the path so the worktree dir name is never empty. Paths
- * come from gitea body comments and use `/` separators.
- */
-function deriveSlug(planFile: string): string {
-  const segments = planFile.split('/').filter(Boolean)
-  const anchor = segments.findIndex(s => s === 'plans' || s === 'specs')
-  if (anchor >= 0 && segments[anchor + 1]) {
-    return segments[anchor + 1]
-  }
-  const parent = path.basename(path.dirname(planFile))
-  if (parent && parent !== '.' && parent !== '/') {
-    return parent
-  }
-  return createHash('sha256').update(planFile).digest('hex').slice(0, 8)
-}
 
-/**
- * Expand the `superpowers.worktreeDirectory` template into an ABSOLUTE path.
- * Placeholders: $project_root (workspace abs path), $project_name (its
- * basename), $feature_name (the slug). A leading `~` is expanded here because
- * git/execFile run without a shell and won't do tilde expansion themselves.
- * The result is resolved to absolute since the worktree now lives outside the
- * workspace and is stored/compared as an absolute path downstream.
- */
-function resolveWorktreeDir(template: string, workspaceRoot: string, slug: string): string {
-  let p = template
-    .split('$project_name')
-    .join(path.basename(workspaceRoot))
-    .split('$project_root')
-    .join(workspaceRoot)
-    .split('$feature_name')
-    .join(slug)
-  if (p.startsWith('~')) {
-    p = path.join(os.homedir(), p.slice(1))
-  }
-  return path.resolve(p)
-}
+
+
 
 /**
  * Kick off the end-to-end "implement this plan" flow:
@@ -766,7 +725,7 @@ export async function handleImplement(
   // 目录模板取自插件自己的设置面板（globalState），不是 VS Code 原生配置；
   // 留空时回退到默认 ~/Sources/worktree/<项目>/<slug>。
   const worktreeTemplate = getSettings(panel.context).worktreeDirectory
-    || '~/Sources/worktree/$project_name/$feature_name'
+    || DEFAULT_WORKTREE_TEMPLATE
   let worktreePath = resolveWorktreeDir(worktreeTemplate, workspaceRoot, slug)
 
   // 工单级 profilePath > 默认 fallback。工单的 profile 锁定可在工单详情面板里覆盖。