✨ feat(vscode): 设置面板可配头脑风暴/实施/测试会话的默认 profile

三类会话的 profile 此前只有工单级字段，留空就硬编码落到 official，
想整体换模型只能一个工单一个工单改。

设置面板新增三个下拉，与冲突解决/提交/改动说明的 profile 选择同区。
解析链路变成：工单级字段 > 对应的全局默认设置 > getDefaultProfilePath()，
三类之间仍互不回退。新建工单的头脑风暴会话也走同一条链路。

Claude-Session: https://claude.ai/code/session_01REdhpbaNyqWASF2HWsnTFv

vscode/src/panel/handlers/issues.ts

@@ -10,7 +10,7 @@ import { commands, env, ThemeColor, Uri, window, workspace } from 'vscode'
 import { getToken } from '../../auth/secrets'
 import { buildCcCommand } from '../../cc/ccCommand'
 import { resolveCommitProfileForRun } from '../../cc/commitProfile'
-import { getDefaultProfilePath, resolveProfilePath } from '../../cc/profiles'
+import { resolveProfilePath } from '../../cc/profiles'
 import { getBrainstormPrompt } from '../../cc/prompts'
 import { claudeProjectsRoot, installClaudeSession } from '../../cc/sessionBundle'
 import { projectsDirFor, watchForNewSession } from '../../cc/sessionWatcher'
@@ -1429,8 +1429,8 @@ export async function handleIssueCreate(
     return
   }
 
-  const effectiveProfilePath
-    = brainstormProfilePath && brainstormProfilePath.trim() !== '' ? brainstormProfilePath : getDefaultProfilePath()
+  // 新建工单弹窗里选的 profile > 设置里的「头脑风暴默认配置文件」> DEFAULT。
+  const effectiveProfilePath = sessions.resolveBrainstormProfilePath(panel, brainstormProfilePath)
   if (effectiveProfilePath.includes('\'')) {
     panel.postMessage({
       type: 'toast/show',
@@ -1888,7 +1888,7 @@ export async function handleUpdateAutoReview(panel: KanbanWebviewPanel, issueNum
 /**
  * Persist a per-issue `profilePath` override into the issue's state JSON
  * comment. Implement / implement-resume sessions use this profile
- * (see resolveImplementProfilePath); empty = getDefaultProfilePath().
+ * (see resolveImplementProfilePath); empty = 设置里的「实施默认配置文件」，再空 = getDefaultProfilePath()。
  * Mirrors handleUpdateAutoReview: optimistic update on the webview, rolled
  * back via `issue/patch` if the persist fails.
  */
@@ -1979,7 +1979,7 @@ export async function handleUpdateProfilePath(panel: KanbanWebviewPanel, issueNu
 /**
  * Persist a per-issue `brainstormProfilePath` override into the issue's state
  * JSON. Brainstorm start/resume use this profile (see resolveBrainstormProfilePath);
- * empty = getDefaultProfilePath(). 与实施/测试 profile 互不回退。
+ * empty = 设置里的「头脑风暴默认配置文件」，再空 = getDefaultProfilePath()。与实施/测试 profile 互不回退。
  */
 export async function handleUpdateBrainstormProfilePath(panel: KanbanWebviewPanel, issueNumber: number, brainstormProfilePath: string): Promise<void> {
   const workspaceRoot = workspace.workspaceFolders?.[0]?.uri.fsPath
@@ -2063,7 +2063,7 @@ export async function handleUpdateBrainstormProfilePath(panel: KanbanWebviewPane
 /**
  * Persist a per-issue `testProfilePath` override into the issue's state JSON
  * comment. Test start/resume use this profile (see resolveTestProfilePath);
- * empty = getDefaultProfilePath()，不回退实施 profile。
+ * empty = 设置里的「测试默认配置文件」，再空 = getDefaultProfilePath()，不回退实施 profile。
  */
 export async function handleUpdateTestProfilePath(panel: KanbanWebviewPanel, issueNumber: number, testProfilePath: string): Promise<void> {
   const workspaceRoot = workspace.workspaceFolders?.[0]?.uri.fsPath