chore: scope desktop client build to apps/desktop-client and document regenerate route

Drop the broad path filters that triggered the desktop client build on
unrelated workspace changes, and add a swagger description for the
existing article regenerate endpoint.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.gitea/workflows/desktop-client-build.yml

@@ -6,11 +6,6 @@ on:
       - main
     paths:
       - "apps/desktop-client/**"
-      - "packages/**"
-      - "package.json"
-      - "pnpm-lock.yaml"
-      - "pnpm-workspace.yaml"
-      - ".gitea/workflows/desktop-client-build.yml"
   workflow_dispatch:
     inputs:
       platforms:

server/internal/shared/swagger/descriptions.go

@@ -150,6 +150,7 @@ var routeDocs = map[string]routeDoc{
 	"POST /api/tenant/articles":                               {"创建文章", "手动创建一篇空文章草稿。"},
 	"POST /api/tenant/articles/generate-from-rule":            {"根据 Prompt 规则生成文章", "基于已配置的 Prompt 规则生成一篇文章。"},
 	"POST /api/tenant/articles/imitations/generate":           {"仿写生成文章", "基于参考文链接/原文进行仿写并生成新文章。"},
+	"POST /api/tenant/articles/:id/regenerate":                {"重新生成文章", "基于文章原始生成参数重新入队生成，并返回新的生成任务。"},
 	"POST /api/tenant/articles/:id/images":                    {"上传文章配图", "Multipart 上传文章正文使用的图片。"},
 	"POST /api/tenant/articles/:id/selection-optimize/stream": {"选区优化（SSE 流式）", "针对用户选中的段落做润色/改写，结果流式返回。"},
 	"GET /api/tenant/articles/:id":                            {"文章详情", "返回文章的完整结构（标题、大纲、正文、版本号等）。"},