wip: spinner por-fila en Investigate + spawn directo de python en launcher (incluye trabajo acumulado del arbol)

scripts/start-server.ps1

@@ -132,10 +132,18 @@ $proc = $null
 
 foreach ($candidate in $candidates) {
     Remove-Item '.run\server.log' -Force -ErrorAction SilentlyContinue
+    Remove-Item '.run\server.err.log' -Force -ErrorAction SilentlyContinue
     Out-Line "  [...] Encendiendo el servidor (intento $candidate)..." Gray
-    $cmdLine = '/c "' + $PythonExe + '" -m uvicorn yt_scraper.webapp.app:app --host 127.0.0.1 --port ' + $candidate + ' --log-level info > ".run\server.log" 2>&1'
+    # Spawn directo de python: un wrapper cmd /c con la ruta entre comillas
+    # dispara el quote-stripping de cmd cuando la ruta tiene espacios y el
+    # comando muere en silencio. Start-Process con array de args no sufre eso,
+    # y ademas server.info registra el PID real de python (no el del wrapper).
     try {
-        $proc = Start-Process -FilePath 'cmd.exe' -ArgumentList $cmdLine -WorkingDirectory $root -WindowStyle Minimized -PassThru
+        $proc = Start-Process -FilePath $PythonExe `
+            -ArgumentList @('-m','uvicorn','yt_scraper.webapp.app:app','--host','127.0.0.1','--port',"$candidate",'--log-level','info') `
+            -WorkingDirectory $root -WindowStyle Minimized -PassThru `
+            -RedirectStandardOutput "$root\.run\server.log" `
+            -RedirectStandardError  "$root\.run\server.err.log"
     } catch {
         Out-Line "  [warn] Start-Process fallo en $candidate : $($_.Exception.Message)" Yellow
         continue
@@ -158,12 +166,14 @@ foreach ($candidate in $candidates) {
 
     if (-not $bound) {
         Out-Line "  [warn] Este intento no respondio; probando el siguiente..." Yellow
-        # Show the actual reason from the log so the user can diagnose.
-        if (Test-Path '.run\server.log') {
-            $tail = Get-Content '.run\server.log' -Tail 6 -ErrorAction SilentlyContinue
-            if ($tail) {
-                Out-Line "         (ultimas lineas del log):" DarkGray
-                $tail | ForEach-Object { Out-Line "           $_" DarkGray }
+        # Show the actual reason from the logs so the user can diagnose.
+        foreach ($logName in @('.run\server.err.log', '.run\server.log')) {
+            if (Test-Path $logName) {
+                $tail = Get-Content $logName -Tail 6 -ErrorAction SilentlyContinue
+                if ($tail) {
+                    Out-Line "         (ultimas lineas de $logName):" DarkGray
+                    $tail | ForEach-Object { Out-Line "           $_" DarkGray }
+                }
             }
         }
         try { Stop-Process -Id $proc.Id -Force -ErrorAction SilentlyContinue } catch {}