feat: add AI学习助手 agent (KG+RAG ideal) and renshenguo feishu bot

- Add AI学习助手 agent creation script with all 39 tools, 3-layer KG+RAG memory
- Add renshenguo (人参果) feishu bot integration (app_service + ws_handler)
- Register renshenguo WS client in main.py startup
- Add RENSHENGUO_APP_ID / RENSHENGUO_APP_SECRET / RENSHENGUO_AGENT_ID config
- Reorganize docs from root into docs/ subdirectories
- Move startup scripts to scripts/startup/
- Various backend optimizations and tool improvements

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docs/startup-deploy/install_autostart.ps1

@@ -0,0 +1,74 @@
+# Install / uninstall AIAgent auto-start scheduled task
+# Usage:
+#   powershell -ExecutionPolicy Bypass -File .\install_autostart.ps1
+#   powershell -ExecutionPolicy Bypass -File .\install_autostart.ps1 -Uninstall
+
+param(
+  [switch]$Uninstall
+)
+
+$ErrorActionPreference = "Stop"
+$RepoRoot = Split-Path -Parent $MyInvocation.MyCommand.Path
+$TaskName = "AIAgent-Startup"
+$ScriptPath = Join-Path $RepoRoot "start_aiagent_background.ps1"
+
+if (-not (Test-Path $ScriptPath)) {
+  Write-Host "ERROR: $ScriptPath not found" -ForegroundColor Red
+  exit 1
+}
+
+if ($Uninstall) {
+  Write-Host "Uninstalling scheduled task: $TaskName ..." -ForegroundColor Yellow
+  Unregister-ScheduledTask -TaskName $TaskName -Confirm:$false -ErrorAction SilentlyContinue
+  Write-Host "[OK] Task '$TaskName' removed" -ForegroundColor Green
+  exit 0
+}
+
+# Remove old task if exists
+Unregister-ScheduledTask -TaskName $TaskName -Confirm:$false -ErrorAction SilentlyContinue
+
+# Build action: run background start script
+$argString = "-NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -File `"$ScriptPath`""
+$action = New-ScheduledTaskAction -Execute "powershell.exe" -Argument $argString
+
+# Build trigger: 30 seconds after system boot
+$trigger = New-ScheduledTaskTrigger -AtStartup -RandomDelay (New-TimeSpan -Seconds 30)
+
+# Build settings
+$settings = New-ScheduledTaskSettingsSet `
+  -AllowStartIfOnBatteries `
+  -DontStopIfGoingOnBatteries `
+  -StartWhenAvailable `
+  -RestartCount 3 `
+  -RestartInterval (New-TimeSpan -Minutes 1) `
+  -ExecutionTimeLimit (New-TimeSpan -Minutes 10)
+
+# Run as SYSTEM (no login required)
+$principal = New-ScheduledTaskPrincipal -UserId "SYSTEM" -LogonType ServiceAccount -RunLevel Highest
+
+Register-ScheduledTask -TaskName $TaskName `
+  -Trigger $trigger `
+  -Action $action `
+  -Settings $settings `
+  -Principal $principal `
+  -Description "AIAgent platform auto-start (Redis + API + Celery + Frontend)" `
+  -Force
+
+Write-Host ""
+Write-Host "==================================================" -ForegroundColor Green
+Write-Host "[OK] Auto-start task installed" -ForegroundColor Green
+Write-Host "==================================================" -ForegroundColor Green
+Write-Host ""
+Write-Host "Task name : $TaskName"
+Write-Host "Trigger   : At system startup (30s delay)"
+Write-Host "Run as    : SYSTEM (no login required)"
+Write-Host "Logs      : $RepoRoot\logs\"
+Write-Host ""
+Write-Host "Manual test (run now):"
+Write-Host "  Start-ScheduledTask -TaskName '$TaskName'"
+Write-Host ""
+Write-Host "Uninstall:"
+Write-Host "  powershell -ExecutionPolicy Bypass -File `"$($MyInvocation.MyCommand.Path)`" -Uninstall"
+Write-Host ""
+Write-Host "Verify in GUI:"
+Write-Host "  taskschd.msc  ->  任务计划程序库  ->  $TaskName"