✨ feat(vscode): 工单移交的会话包改走阿里云 OSS、换 xz 压缩，两边进度一步步显示

- 会话包传到 OSS 的 spx-handoff/<owner>/<repo>/issue-<N>-<时间>.tar.xz，上传时对象设成私有；不再挂 Gitea 工单附件
- 新命令「配置移交存储」：endpoint、bucket 存扩展设置，AccessKey 存密钥存储；没配时移交 / 接管直接提示，什么都不改
- 共享 state 字段 handoffAttachmentId 改名 handoffBundleKey（含 spx CLI 与 schema）
- 打包换成 xz 1 级（tar -cJf），去掉 100MB 上限检查和先试压一遍的重复压缩
- 发送方提示打包 / 上传了多少 MB；接管方同一条提示依次显示下载、解包、建 worktree、装会话，完成前不消失
- 会话交接（单会话）仍走 Gitea 附件，Gitea 附件白名单没有 .xz，单独保留 gzip 打包

vscode/src/panel/handlers/handoff.test.ts

@@ -8,8 +8,11 @@ import {
   handoffLocalTombstones,
   handoffStartedStateExtra,
   handoffStartedUiPatch,
+  transferProgressText,
 } from './handoff'
 
+const KEY = 'spx-handoff/o/r/issue-9-20261008T010203Z.tar.xz'
+
 describe('canStartHandoff', () => {
   it('gitea 工单、非 done、无待接管、无 assignee 或 assignee 含我 → true', () => {
     expect(canStartHandoff({ column: 'in-progress' }, 'me')).toBe(true)
@@ -20,21 +23,30 @@ describe('canStartHandoff', () => {
   it('done / youtrack / 已在移交中 / 不是我负责 → false', () => {
     expect(canStartHandoff({ column: 'done' }, 'me')).toBe(false)
     expect(canStartHandoff({ column: 'review', source: 'youtrack' }, 'me')).toBe(false)
-    expect(canStartHandoff({ column: 'review', handoffAttachmentId: '9' }, 'me')).toBe(false)
+    expect(canStartHandoff({ column: 'review', handoffBundleKey: KEY }, 'me')).toBe(false)
     expect(canStartHandoff({ column: 'todo', assignees: ['x'] }, 'me')).toBe(false)
     expect(canStartHandoff({ column: 'todo', assignees: ['me'] }, undefined)).toBe(false)
   })
 })
 
 describe('canAcceptHandoff', () => {
-  it('有附件且 assignee 含我 → true', () => {
-    expect(canAcceptHandoff({ handoffAttachmentId: '9', assignees: ['me', 'x'] }, 'me')).toBe(true)
+  it('有待接管的会话包且 assignee 含我 → true', () => {
+    expect(canAcceptHandoff({ handoffBundleKey: KEY, assignees: ['me', 'x'] }, 'me')).toBe(true)
   })
-  it('无附件 / 不是我的 / 身份未知 / youtrack → false', () => {
+  it('没有会话包 / 不是我的 / 身份未知 / youtrack → false', () => {
     expect(canAcceptHandoff({ assignees: ['me'] }, 'me')).toBe(false)
-    expect(canAcceptHandoff({ handoffAttachmentId: '9', assignees: ['x'] }, 'me')).toBe(false)
-    expect(canAcceptHandoff({ handoffAttachmentId: '9', assignees: ['me'] }, undefined)).toBe(false)
-    expect(canAcceptHandoff({ source: 'youtrack', handoffAttachmentId: '9', assignees: ['me'] }, 'me')).toBe(false)
+    expect(canAcceptHandoff({ handoffBundleKey: KEY, assignees: ['x'] }, 'me')).toBe(false)
+    expect(canAcceptHandoff({ handoffBundleKey: KEY, assignees: ['me'] }, undefined)).toBe(false)
+    expect(canAcceptHandoff({ source: 'youtrack', handoffBundleKey: KEY, assignees: ['me'] }, 'me')).toBe(false)
+  })
+})
+
+describe('transferProgressText', () => {
+  it('知道总大小时报「已传 / 总共」', () => {
+    expect(transferProgressText('上传', 3.2 * 1024 * 1024, 32 * 1024 * 1024)).toBe('上传 3.2MB / 32MB')
+  })
+  it('总大小未知时只报已传多少', () => {
+    expect(transferProgressText('下载', 512 * 1024, 0)).toBe('下载 512KB')
   })
 })
 
@@ -58,8 +70,8 @@ describe('checkWorktreePushed', () => {
 
 describe('payloads', () => {
   it('移交落盘：只写两个共享字段，本机字段留到本机清理跑完后再墓碑', () => {
-    expect(handoffStartedStateExtra(9, 'chw')).toEqual({
-      handoffAttachmentId: '9',
+    expect(handoffStartedStateExtra(KEY, 'chw')).toEqual({
+      handoffBundleKey: KEY,
       handoffFrom: 'chw',
     })
   })
@@ -95,8 +107,8 @@ describe('payloads', () => {
     })
   })
   it('移交 UI patch 用 null 清字段并更新 assignees', () => {
-    expect(handoffStartedUiPatch(9, 'chw', 'me', { keepWorktreePath: false })).toEqual({
-      handoffAttachmentId: '9',
+    expect(handoffStartedUiPatch(KEY, 'chw', 'me', { keepWorktreePath: false })).toEqual({
+      handoffBundleKey: KEY,
       handoffFrom: 'chw',
       assignees: ['me'],
       sessionId: null,
@@ -114,11 +126,11 @@ describe('payloads', () => {
     })
   })
   it('移交 UI patch：keepWorktreePath=true 时省略 worktreePath / worktreeExists', () => {
-    const patch = handoffStartedUiPatch(9, 'chw', 'me', { keepWorktreePath: true })
+    const patch = handoffStartedUiPatch(KEY, 'chw', 'me', { keepWorktreePath: true })
     expect(patch).not.toHaveProperty('worktreePath')
     expect(patch).not.toHaveProperty('worktreeExists')
     expect(patch).toEqual({
-      handoffAttachmentId: '9',
+      handoffBundleKey: KEY,
       handoffFrom: 'chw',
       assignees: ['me'],
       sessionId: null,
@@ -139,7 +151,7 @@ describe('payloads', () => {
       profiles: { profilePath: '/p.json' },
       worktreePath: '/wt',
     })).toEqual({
-      handoffAttachmentId: '',
+      handoffBundleKey: '',
       handoffFrom: '',
       implementSessionId: 'i',
       reviewSessionId: 'r',
@@ -155,7 +167,7 @@ describe('payloads', () => {
       worktreeExists: true,
       missingSessionIds: [],
     })).toEqual({
-      handoffAttachmentId: null,
+      handoffBundleKey: null,
       handoffFrom: null,
       sessionId: 's',
       worktreePath: '/wt',
@@ -170,7 +182,7 @@ describe('payloads', () => {
       worktreeExists: false,
       missingSessionIds: [],
     })).toEqual({
-      handoffAttachmentId: null,
+      handoffBundleKey: null,
       handoffFrom: null,
       sessionId: 's',
       worktreePath: null,
@@ -185,7 +197,7 @@ describe('payloads', () => {
       worktreeExists: false,
       missingSessionIds: ['r'],
     })).toEqual({
-      handoffAttachmentId: null,
+      handoffBundleKey: null,
       handoffFrom: null,
       sessionId: 's',
       reviewSessionId: 'r',