构建(依赖): 修复编译版Wiki 500报错

- requirements.txt: 新增 python-frontmatter 和 PyYAML（Wiki核心依赖）
- build-desktop.yml: 补全第三方库 hidden-import
  - yaml (frontmatter依赖)
  - bs4, croniter, httpx, anthropic, openai
  - loguru, pydantic, pydantic.deprecated
  - sqlalchemy, aiosqlite, websockets

.github/workflows/build-desktop.yml

@@ -227,6 +227,21 @@ jobs:
             --hidden-import=backend.modules.external_agents.adapters.cli \
             --hidden-import=frontmatter \
             --hidden-import=python_multipart \
+            --hidden-import=yaml \
+            --hidden-import=bs4 \
+            --hidden-import=croniter \
+            --hidden-import=httpx \
+            --hidden-import=anthropic \
+            --hidden-import=openai \
+            --hidden-import=loguru \
+            --hidden-import=pydantic \
+            --hidden-import=pydantic.deprecated \
+            --hidden-import=pydantic.deprecated.decorator \
+            --hidden-import=sqlalchemy \
+            --hidden-import=sqlalchemy.ext \
+            --hidden-import=sqlalchemy.ext.asyncio \
+            --hidden-import=aiosqlite \
+            --hidden-import=websockets \
             --hidden-import=uvicorn \
             --hidden-import=uvicorn.logging \
             --hidden-import=uvicorn.loops \
@@ -414,6 +429,21 @@ jobs:
             --hidden-import=backend.modules.external_agents.adapters.cli `
             --hidden-import=frontmatter `
             --hidden-import=python_multipart `
+            --hidden-import=yaml `
+            --hidden-import=bs4 `
+            --hidden-import=croniter `
+            --hidden-import=httpx `
+            --hidden-import=anthropic `
+            --hidden-import=openai `
+            --hidden-import=loguru `
+            --hidden-import=pydantic `
+            --hidden-import=pydantic.deprecated `
+            --hidden-import=pydantic.deprecated.decorator `
+            --hidden-import=sqlalchemy `
+            --hidden-import=sqlalchemy.ext `
+            --hidden-import=sqlalchemy.ext.asyncio `
+            --hidden-import=aiosqlite `
+            --hidden-import=websockets `
             --hidden-import=uvicorn `
             --hidden-import=uvicorn.logging `
             --hidden-import=uvicorn.loops `

requirements.txt

@@ -31,6 +31,10 @@ pywebview>=5.3
 # ── 网页内容提取 ──────────────────────────
 beautifulsoup4>=4.14.2
 
+# ── Wiki 知识库 ────────────────────────────
+python-frontmatter>=1.0.0
+PyYAML>=6.0
+
 # ── 渠道 SDK ─────────────────────────────
 qq-botpy>=1.2.1
 dingtalk-stream>=0.24.3