✨ feat(vscode): 新增第五种工单会话「原型会话」

照测试会话那条链路补一份 prototype：

- 消息与路由：session/start-prototype、session/resume-prototype、
  issue/update-prototype-profile-path，都进只读门禁
- 会话：handleStartPrototypeSession / handleResumePrototypeSession，
  终端名 issue-N-原型；cwd 有 worktree 用 worktree、没有退主仓库根
  （原 resolveTestSessionCwd 改名 resolveWorktreeOrRootCwd 两种会话共用）
- 不要求有 PR，任何阶段都能起；前置工单锁仍然拦
- 提示词：新增 prompts/prototype.md，设置里可改，占位符 {issueNumber}
- profile：工单级 prototypeProfilePath > 设置里的原型默认 profile >
  内置默认，与其它会话互不回退
- 状态字段 prototypeSessionId / prototypeProfilePath / prototypeTabOpen
  贯通 gitea、youtrack、本机 state 与移交包
- 详情面板加「原型会话id」「原型配置文件」两行，设置面板加对应两项

Claude-Session: https://claude.ai/code/session_01Kgmb1LvrPmFX3NoUDB4zZC

vscode/src/gitea/issueLoader.ts

@@ -70,6 +70,7 @@ function parseColumnFromComments(comments: GiteaComment[]): {
   profilePath?: string
   brainstormProfilePath?: string
   testProfilePath?: string
+  prototypeProfilePath?: string
   specFile?: string
   planFile?: string
   prDiffFile?: string
@@ -82,6 +83,7 @@ function parseColumnFromComments(comments: GiteaComment[]): {
   implementSessionId?: string
   reviewSessionId?: string
   testSessionId?: string
+  prototypeSessionId?: string
   color?: string
   autoReview?: boolean
   handoffAttachmentId?: string
@@ -116,6 +118,7 @@ function parseColumnFromComments(comments: GiteaComment[]): {
       profilePath?: unknown
       brainstormProfilePath?: unknown
       testProfilePath?: unknown
+      prototypeProfilePath?: unknown
       specFile?: unknown
       planFile?: unknown
       prDiffFile?: unknown
@@ -128,6 +131,7 @@ function parseColumnFromComments(comments: GiteaComment[]): {
       implementSessionId?: unknown
       reviewSessionId?: unknown
       testSessionId?: unknown
+      prototypeSessionId?: unknown
       color?: unknown
       autoReview?: unknown
       handoffAttachmentId?: unknown
@@ -146,6 +150,9 @@ function parseColumnFromComments(comments: GiteaComment[]): {
       const testProfilePath = typeof obj.testProfilePath === 'string' && obj.testProfilePath.length > 0
         ? obj.testProfilePath
         : undefined
+      const prototypeProfilePath = typeof obj.prototypeProfilePath === 'string' && obj.prototypeProfilePath.length > 0
+        ? obj.prototypeProfilePath
+        : undefined
       const specFile = isValidSpxFilePath(obj.specFile) ? obj.specFile : undefined
       const planFile = isValidSpxFilePath(obj.planFile) ? obj.planFile : undefined
       const prDiffFile = isValidPrDiffFilePath(obj.prDiffFile) ? obj.prDiffFile : undefined
@@ -176,6 +183,9 @@ function parseColumnFromComments(comments: GiteaComment[]): {
       const testSessionId = typeof obj.testSessionId === 'string' && obj.testSessionId.length > 0
         ? obj.testSessionId
         : undefined
+      const prototypeSessionId = typeof obj.prototypeSessionId === 'string' && obj.prototypeSessionId.length > 0
+        ? obj.prototypeSessionId
+        : undefined
       const color = typeof obj.color === 'string' && obj.color.length > 0
         ? obj.color
         : undefined
@@ -192,6 +202,7 @@ function parseColumnFromComments(comments: GiteaComment[]): {
         profilePath,
         brainstormProfilePath,
         testProfilePath,
+        prototypeProfilePath,
         specFile,
         planFile,
         prDiffFile,
@@ -204,6 +215,7 @@ function parseColumnFromComments(comments: GiteaComment[]): {
         implementSessionId,
         reviewSessionId,
         testSessionId,
+        prototypeSessionId,
         color,
         autoReview,
         handoffAttachmentId,
@@ -333,6 +345,7 @@ async function buildIssue(opts: {
     profilePath,
     brainstormProfilePath,
     testProfilePath,
+    prototypeProfilePath,
     specFile,
     planFile,
     prDiffFile,
@@ -345,6 +358,7 @@ async function buildIssue(opts: {
     implementSessionId,
     reviewSessionId,
     testSessionId,
+    prototypeSessionId,
     color,
     autoReview,
     handoffAttachmentId,
@@ -395,6 +409,7 @@ async function buildIssue(opts: {
     ...(profilePath ? { profilePath } : {}),
     ...(brainstormProfilePath ? { brainstormProfilePath } : {}),
     ...(testProfilePath ? { testProfilePath } : {}),
+    ...(prototypeProfilePath ? { prototypeProfilePath } : {}),
     ...(specFile ? { specFile } : {}),
     ...(planFile ? { planFile } : {}),
     ...(prDiffFile ? { prDiffFile } : {}),
@@ -408,6 +423,7 @@ async function buildIssue(opts: {
     ...(implementSessionId ? { implementSessionId } : {}),
     ...(reviewSessionId ? { reviewSessionId } : {}),
     ...(testSessionId ? { testSessionId } : {}),
+    ...(prototypeSessionId ? { prototypeSessionId } : {}),
     ...(prerequisite !== undefined ? { prerequisite } : {}),
     ...(color ? { color } : {}),
     ...(autoReview !== undefined ? { autoReview } : {}),

vscode/src/gitea/stateJson.ts

@@ -19,7 +19,7 @@ import { listIssueComments, postIssueComment } from './api'
  * 普通文本评论、审查评论、Gitea 自动关联评论都不含这些字段，因此从尾往前
  * 扫描时会被跳过，避免它们插队后下一次 merge 从空状态开始丢历史。
  */
-const KNOWN_STATE_FIELDS = ['column', 'sessionId', 'implementSessionId', 'reviewSessionId', 'testSessionId', 'profilePath', 'brainstormProfilePath', 'testProfilePath', 'specFile', 'planFile', 'prDiffFile', 'pr', 'prMerged', 'prMergedAt', 'branch', 'worktreePath', 'implementStatus', 'color', 'autoReview', 'handoffAttachmentId', 'handoffFrom'] as const
+const KNOWN_STATE_FIELDS = ['column', 'sessionId', 'implementSessionId', 'reviewSessionId', 'testSessionId', 'prototypeSessionId', 'profilePath', 'brainstormProfilePath', 'testProfilePath', 'prototypeProfilePath', 'specFile', 'planFile', 'prDiffFile', 'pr', 'prMerged', 'prMergedAt', 'branch', 'worktreePath', 'implementStatus', 'color', 'autoReview', 'handoffAttachmentId', 'handoffFrom'] as const
 
 /**
  * body 能 parse 成 object 且含至少一个已知 state 字段 → 认为是 state JSON。

vscode/src/gitea/types.ts

@@ -45,6 +45,8 @@ export interface Issue {
   brainstormProfilePath?: string
   /** 测试会话专用的 Claude 配置文件；空 = DEFAULT_PROFILE_PATH，不回退其它字段。 */
   testProfilePath?: string
+  /** 原型会话专用的 Claude 配置文件；空 = DEFAULT_PROFILE_PATH，不回退其它字段。 */
+  prototypeProfilePath?: string
   /**
    * Optional workspace-relative path to the spec file for this issue, as
    * surfaced from the Claude session transcript. Lives under
@@ -100,6 +102,11 @@ export interface Issue {
    * is merged; reused for resume from the detail panel.
    */
   testSessionId?: string
+  /**
+   * 原型会话（Claude Code session id）。详情面板点原型会话行的 ▶ 启动后写入，
+   * 之后该行改为可 resume。与 PR 无关，任何阶段都能起。
+   */
+  prototypeSessionId?: string
   /** Browser URL to the Gitea issue page (escape hatch button in the UI). */
   htmlUrl: string
   /** 前置任务 issue number (Gitea dependencies 取第一个) */
@@ -132,4 +139,6 @@ export interface Issue {
   reviewTabOpen?: boolean
   /** Whether the test terminal tab is currently alive in this VS Code window. */
   testTabOpen?: boolean
+  /** Whether the prototype terminal tab is currently alive in this VS Code window. */
+  prototypeTabOpen?: boolean
 }