fix: improve llmwiki search integration

scripts/start-all-and-wait-frontend.ps1

@@ -0,0 +1,21 @@
+. "$PSScriptRoot\env.ps1"
+
+& "$PSScriptRoot\start-all.ps1"
+
+$deadline = (Get-Date).AddSeconds(60)
+$url = "$FrontendPublicBaseUrl/"
+Write-Host "Waiting for frontend: $url"
+
+while ((Get-Date) -lt $deadline) {
+    try {
+        $response = Invoke-WebRequest -UseBasicParsing -Uri $url -TimeoutSec 2
+        if ($response.StatusCode -ge 200 -and $response.StatusCode -lt 500) {
+            Write-Host "Frontend is ready: $url"
+            exit 0
+        }
+    } catch {
+        Start-Sleep -Milliseconds 500
+    }
+}
+
+throw "Timed out waiting for frontend: $url"