fix: restore pypi litellm install path (#858)

* fix: restore pypi litellm install path

* chore: relax litellm lower bound to historical minimum

Author: ZhuLinsen

docs/CHANGELOG.md

@@ -11,6 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/).
 
 ### 修复
 
+- 📦 **恢复 LiteLLM 官方 PyPI 安装并锁定安全上限** — `requirements.txt` 重新使用 `pip install litellm` 的官方 PyPI 安装路径，并在保留历史最低要求 `>=1.80.10` 的同时增加 `<1.82.7` 的安全上限，避免误装已被移除的 `1.82.7` / `1.82.8` 风险版本；Windows 桌面打包脚本也同步回退到标准 `pip install -r requirements.txt` 链路，减少特殊下载分支带来的维护成本。
 - 📨 **Telegram Markdown 解析失败回退纯文本**（fixes #850）— `src/notification_sender/telegram_sender.py` 现在会在 Telegram 返回 `HTTP 400` 且包含 `can't parse entities` / Markdown 解析错误时，自动去掉 `parse_mode` 后重试纯文本发送，避免 `*ST` 等正文内容直接导致整条通知失败。
 - 🔢 **A 股同码实时行情保留交易所提示**（fixes #852）— `DataFetcherManager` 与 `TushareFetcher` 现在会保留 `SZ000001` / `000001.SZ` 这类显式沪深提示，旧版 Tushare 实时行情降级分支不再把深市 `000001` 误判成 `sh000001` 上证指数。
 - 🎯 **多 Agent 次优买点不再盲目复制理想买点**（fixes #851）— 当多智能体结果缺少独立 `secondary_buy` 时，仪表盘现在优先展示 `N/A` 而不是把 fallback 值硬拷贝成与 `ideal_buy` 完全相同，减少误导性的双买点展示。

requirements.txt

@@ -29,8 +29,9 @@ numpy>=1.24.0               # 数值计算
 json-repair>=0.55.1         # JSON 修复
 
 # AI 分析
-# PyPI project was quarantined on 2026-03-24; install from the upstream GitHub stable tag for now.
-litellm @ https://github.com/BerriAI/litellm/archive/refs/tags/v1.82.3-stable.patch.2.tar.gz  # Unified LLM client (Gemini/Anthropic/OpenAI/DeepSeek etc.)
+# Restore official PyPI install after the quarantined 1.82.7 / 1.82.8 builds were removed.
+# Keep the historical minimum version and add a safe upper bound.
+litellm>=1.80.10,<1.82.7   # Unified LLM client (Gemini/Anthropic/OpenAI/DeepSeek etc.)
 tiktoken>=0.8.0,<0.12.0    # BPE tokenizer for LLM token counting (pin <0.12 to avoid plugin registration issues, #537)
 openai>=1.0.0               # OpenAI SDK (transitive dependency of litellm, kept explicit)
 PyYAML>=6.0                 # YAML parser for LITELLM_CONFIG support

scripts/build-backend.ps1

@@ -15,9 +15,6 @@ if ([string]::IsNullOrWhiteSpace($pythonBin)) {
 
 Write-Host "Using Python: $pythonBin"
 
-$repoRoot = (Resolve-Path (Join-Path $PSScriptRoot '..')).Path
-$requirementsPath = Join-Path $repoRoot 'requirements.txt'
-
 function Test-PythonCode {
   param(
     [string]$Python,
@@ -32,79 +29,16 @@ function Test-PythonCode {
   }
 }
 
-function Install-PatchedLiteLLMFromGitHubSource {
-  param(
-    [string]$Python,
-    [string]$Tag
-  )
-
-  $tempRoot = Join-Path ([System.IO.Path]::GetTempPath()) "dsa-litellm-$Tag"
-  $archivePath = Join-Path ([System.IO.Path]::GetTempPath()) "dsa-litellm-$Tag.zip"
-  $extractRoot = Join-Path $tempRoot 'src'
-
-  if (Test-Path $tempRoot) {
-    Remove-Item -Recurse -Force $tempRoot
-  }
-  New-Item -ItemType Directory -Path $extractRoot -Force | Out-Null
-
-  $downloadUrl = "https://github.com/BerriAI/litellm/archive/refs/tags/$Tag.zip"
-  Write-Host "Downloading patched LiteLLM source: $downloadUrl"
-  Invoke-WebRequest -Uri $downloadUrl -OutFile $archivePath
-
-  Expand-Archive -Path $archivePath -DestinationPath $extractRoot -Force
-  $sourceDir = Get-ChildItem -Path $extractRoot -Directory | Select-Object -First 1
-  if (-not $sourceDir) {
-    throw "Unable to locate extracted LiteLLM source under $extractRoot."
-  }
-
-  $enterpriseDir = Join-Path $sourceDir.FullName 'enterprise'
-  if (Test-Path $enterpriseDir) {
-    # Work around Poetry wheel build failures on Windows when the upstream source archive
-    # includes LiteLLM's optional enterprise package tree.
-    Remove-Item -Recurse -Force $enterpriseDir
-  }
-
-  & $Python -m pip install $sourceDir.FullName
-  if ($LASTEXITCODE -ne 0) {
-    throw "Patched LiteLLM install failed with exit code $LASTEXITCODE."
-  }
-}
-
-function Install-BackendDependencies {
-  param(
-    [string]$Python,
-    [string]$RequirementsFile
-  )
-
-  $tempRequirements = Join-Path ([System.IO.Path]::GetTempPath()) 'dsa-desktop-backend-requirements.txt'
-  $litellmTag = $null
-  $filteredLines = foreach ($line in Get-Content $RequirementsFile) {
-    if ($line -match '^\s*litellm\s*@\s*https://github\.com/BerriAI/litellm/archive/refs/tags/([^/\s]+)\.tar\.gz') {
-      $litellmTag = $Matches[1]
-      continue
-    }
-    $line
-  }
-
-  Set-Content -Path $tempRequirements -Value $filteredLines
-
-  & $Python -m pip install -r $tempRequirements
-  if ($LASTEXITCODE -ne 0) {
-    throw "pip install -r $tempRequirements failed with exit code $LASTEXITCODE."
-  }
-
-  if ($litellmTag) {
-    Install-PatchedLiteLLMFromGitHubSource -Python $Python -Tag $litellmTag
-  }
-}
-
 Write-Host 'Building backend executable...'
 if (-not (Test-PythonCode -Python $pythonBin -Code "import PyInstaller")) {
   & $pythonBin -m pip install pyinstaller
 }
 
 Write-Host 'Installing backend dependencies...'
-Install-BackendDependencies -Python $pythonBin -RequirementsFile $requirementsPath
+& $pythonBin -m pip install -r requirements.txt
+if ($LASTEXITCODE -ne 0) {
+  throw "pip install -r requirements.txt failed with exit code $LASTEXITCODE."
+}
 
 Write-Host 'Checking python-multipart availability...'
 if (-not (Test-PythonCode -Python $pythonBin -Code "import multipart, multipart.multipart")) {