✨ feat(vscode): 会话交接改走阿里云 OSS 收件箱、换 xz 压缩，另加从 env 文件配置移交存储的 URI

- 会话包传到 OSS 上收件人的收件箱 spx-handoff/<owner>/<repo>/session/<收件人>/<sid>!<发送人>!<会话名>.tar.xz，对象私有；owner/repo/收件人转小写
- 待接收列表就是列自己的收件箱；同一会话再交给同一人先删旧包；接收后删包，包已被别处收走时提示并刷新
- 打包换成 xz 1 级，和工单移交共用 packHandoff / unpackHandoff，删掉 gzip 版
- 删掉邮箱工单整套（mailboxIssue、MAILBOX_*、isMailboxIssue 及看板 / webhook 里的过滤、附件名编解码）和不再用的 Gitea 附件、标签、建工单接口
- session-handoff/accept 与待接收项改用 OSS 对象 key 标识
- 没配移交存储时发送、接收、刷新都提示去配，刷新回空列表
- 进度提示照工单移交：同一条提示依次显示打包、上传、下载多少 MB、解包、装会话
- 新增 URI configure-handoff-store?envFile=<绝对路径>：读 OSS_ENDPOINT / OSS_BUCKET_NAME / OSS_ACCESS_KEY / OSS_SECRET_KEY 保存，和命令共用 saveHandoffStore；URI 入口按 path 统一分发，未知 path 报错

vscode/src/gitea/api.ts

@@ -9,8 +9,6 @@
  * distinguish 401 (token invalid) from other failure modes.
  */
 
-import { Buffer } from 'node:buffer'
-
 import { logger } from '../logging/logger'
 
 export const PAGE_SIZE = 50
@@ -100,8 +98,6 @@ export async function listIssuesByFilter(opts: {
   /** 缺省 = 不按人过滤,拉仓库全部工单(团队视图)。 */
   filter?: 'assigned_by' | 'created_by'
   user?: string
-  /** 逗号分隔的 label 名。label 必须已存在，否则 Gitea 会丢掉过滤条件。 */
-  labels?: string
 }): Promise<GiteaIssue[]> {
   const out: GiteaIssue[] = []
   let page = 1
@@ -113,8 +109,6 @@ export async function listIssuesByFilter(opts: {
     url.searchParams.set('state', 'all')
     if (opts.filter && opts.user)
       url.searchParams.set(opts.filter, opts.user)
-    if (opts.labels)
-      url.searchParams.set('labels', opts.labels)
     url.searchParams.set('limit', String(PAGE_SIZE))
     url.searchParams.set('page', String(page))
 
@@ -131,77 +125,6 @@ export async function listIssuesByFilter(opts: {
   return out
 }
 
-export interface GiteaLabel {
-  id: number
-  name: string
-  color: string
-}
-
-export async function listRepoLabels(opts: {
-  host: string
-  token: string
-  owner: string
-  repo: string
-}): Promise<GiteaLabel[]> {
-  const out: GiteaLabel[] = []
-  let page = 1
-  while (true) {
-    const url = new URL(`${baseUrl(opts.host)}/repos/${opts.owner}/${opts.repo}/labels`)
-    url.searchParams.set('limit', String(PAGE_SIZE))
-    url.searchParams.set('page', String(page))
-    const res = await fetch(url.toString(), { headers: authHeaders(opts.token) })
-    await ensureOk(res)
-    const batch = await res.json() as GiteaLabel[]
-    if (!Array.isArray(batch) || batch.length === 0)
-      break
-    out.push(...batch)
-    if (batch.length < PAGE_SIZE)
-      break
-    page += 1
-  }
-  return out
-}
-
-export async function createRepoLabel(opts: {
-  host: string
-  token: string
-  owner: string
-  repo: string
-  name: string
-  color: string
-  description?: string
-}): Promise<GiteaLabel> {
-  const res = await fetch(`${baseUrl(opts.host)}/repos/${opts.owner}/${opts.repo}/labels`, {
-    method: 'POST',
-    headers: { ...authHeaders(opts.token), 'Content-Type': 'application/json' },
-    body: JSON.stringify({ name: opts.name, color: opts.color, description: opts.description ?? '' }),
-  })
-  await ensureOk(res)
-  return (await res.json()) as GiteaLabel
-}
-
-export async function createIssue(opts: {
-  host: string
-  token: string
-  owner: string
-  repo: string
-  title: string
-  body: string
-  labels?: number[]
-}): Promise<GiteaIssue> {
-  const res = await fetch(`${baseUrl(opts.host)}/repos/${opts.owner}/${opts.repo}/issues`, {
-    method: 'POST',
-    headers: { ...authHeaders(opts.token), 'Content-Type': 'application/json' },
-    body: JSON.stringify({
-      title: opts.title,
-      body: opts.body,
-      ...(opts.labels && opts.labels.length > 0 ? { labels: opts.labels } : {}),
-    }),
-  })
-  await ensureOk(res)
-  return (await res.json()) as GiteaIssue
-}
-
 /**
  * Fetches the firehose `/repos/{owner}/{repo}/issues/comments` endpoint, which
  * returns every comment in the repo across all issues. Paginated until a short
@@ -713,15 +636,6 @@ export async function getRawFile(opts: {
   return res.text()
 }
 
-export interface GiteaAttachment {
-  id: number
-  name: string
-  size: number
-  uuid: string
-  browser_download_url: string
-  created_at: string
-}
-
 /** 可被指派的用户（仓库协作者 + owner），移交选人用。 */
 export async function listRepoAssignees(opts: {
   host: string
@@ -736,72 +650,3 @@ export async function listRepoAssignees(opts: {
   await ensureOk(res)
   return (await res.json()) as GiteaUser[]
 }
-
-export async function listIssueAttachments(opts: {
-  host: string
-  token: string
-  owner: string
-  repo: string
-  index: number
-}): Promise<GiteaAttachment[]> {
-  const res = await fetch(
-    `${baseUrl(opts.host)}/repos/${opts.owner}/${opts.repo}/issues/${opts.index}/assets`,
-    { headers: authHeaders(opts.token) },
-  )
-  await ensureOk(res)
-  return (await res.json()) as GiteaAttachment[]
-}
-
-export async function uploadIssueAttachment(opts: {
-  host: string
-  token: string
-  owner: string
-  repo: string
-  index: number
-  name: string
-  data: Buffer
-}): Promise<GiteaAttachment> {
-  const url = new URL(`${baseUrl(opts.host)}/repos/${opts.owner}/${opts.repo}/issues/${opts.index}/assets`)
-  url.searchParams.set('name', opts.name)
-  const form = new FormData()
-  // Buffer 的底层 ArrayBufferLike 包含 SharedArrayBuffer，BlobPart 只认 ArrayBuffer；
-  // 用 Uint8Array 包一层拷贝到普通 ArrayBuffer 上，绕开这条 TS 类型不兼容。
-  form.append('attachment', new Blob([new Uint8Array(opts.data)], { type: 'application/gzip' }), opts.name)
-  // 不能带 Content-Type：multipart boundary 由 fetch 按 FormData 自动生成。
-  const res = await fetch(url.toString(), {
-    method: 'POST',
-    headers: { Authorization: `token ${opts.token}`, Accept: 'application/json' },
-    body: form,
-  })
-  await ensureOk(res)
-  return (await res.json()) as GiteaAttachment
-}
-
-/**
- * `browser_download_url` 走的是 web 路由（/attachments/<uuid>），Gitea 的 web
- * 鉴权组同样接受 `Authorization: token`。未登录时它会 302 到登录页返回 HTML，
- * 所以除 ok 外还要拒掉 HTML 响应，别把登录页当 tgz 存下来。
- */
-export async function downloadAttachment(opts: { token: string, url: string }): Promise<Buffer> {
-  const res = await fetch(opts.url, { headers: { Authorization: `token ${opts.token}` }, redirect: 'follow' })
-  await ensureOk(res)
-  const contentType = res.headers.get('content-type') ?? ''
-  if (contentType.includes('text/html'))
-    throw new GiteaApiError(res.status, `附件下载被重定向到页面（鉴权失败？）：${opts.url}`)
-  return Buffer.from(await res.arrayBuffer())
-}
-
-export async function deleteIssueAttachment(opts: {
-  host: string
-  token: string
-  owner: string
-  repo: string
-  index: number
-  attachmentId: number
-}): Promise<void> {
-  const res = await fetch(
-    `${baseUrl(opts.host)}/repos/${opts.owner}/${opts.repo}/issues/${opts.index}/assets/${opts.attachmentId}`,
-    { method: 'DELETE', headers: authHeaders(opts.token) },
-  )
-  await ensureOk(res)
-}