feat(ups): unelte pentru testul de autonomie cu scoaterea din priza

set-praguri.ps1 schimba pragurile de oprire fara sa atinga parola SMTP si
reporneste taskul, pentru ca ups-monitor.ps1 citeste configuratia o singura
data, la pornirea buclei.

trace-baterie.ps1 scrie o citire la fiecare 20 s intr-un CSV local, iar
start-trace.ps1 il inregistreaza ca task programat sub SYSTEM. Local si
detasat, pentru ca intr-o pana reala reteaua cade odata cu curentul daca
switch-ul nu e pe UPS: sesiunea SSH devine oarba si emailurile esueaza, deci
CSV-ul de pe server ramane singura sursa de date. Taskul are aceleasi
AllowStartIfOnBatteries / DontStopIfGoingOnBatteries ca monitorul - fara ele
Windows l-ar opri exact cand incepe ce vrem sa masuram.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RRyaDj39hPQ89SZS6URRpS

scripts/ups-monitor/trace-baterie.ps1

@@ -0,0 +1,93 @@
+<#
+.SYNOPSIS
+    Inregistreaza local, in CSV, curba de descarcare a UPS-ului in timpul unui test
+    de autonomie cu scoaterea din priza.
+
+.DESCRIPTION
+    Se ruleaza ca task programat, sub SYSTEM, ca sa supravietuiasca inchiderii
+    sesiunii SSH - exact scenariul unui test de pana, unde reteaua poate cadea odata
+    cu curentul daca switch-ul nu e pe UPS.
+
+    Scrie o linie la fiecare interval, indiferent de starea alimentarii, si se
+    opreste singur dupa MaxOre sau cand apare fisierul STOP-TRACE langa CSV.
+    Fisierul CSV e singura sursa sigura de date daca reteaua pica: monitorul
+    propriu-zis noteaza doar evenimentele, nu fiecare citire.
+
+    Se porneste cu start-trace.ps1, care inregistreaza si taskul.
+
+.EXAMPLE
+    powershell -ExecutionPolicy Bypass -File .\trace-baterie.ps1 -IntervalSecunde 20
+#>
+[CmdletBinding()]
+param(
+    [string]$OutFile = 'C:\ROMFAST\ups-monitor\log\trace-baterie.csv',
+    [ValidateRange(5, 300)][int]$IntervalSecunde = 20,
+    [ValidateRange(1, 24)][int]$MaxOre = 8
+)
+
+Set-StrictMode -Version 2.0
+$ErrorActionPreference = 'Stop'
+
+if (-not ('TracePowerStatus' -as [type])) {
+    Add-Type -TypeDefinition @'
+using System;
+using System.Runtime.InteropServices;
+
+[StructLayout(LayoutKind.Sequential)]
+public struct TRACE_POWER_STATUS {
+    public byte ACLineStatus;
+    public byte BatteryFlag;
+    public byte BatteryLifePercent;
+    public byte SystemStatusFlag;
+    public int  BatteryLifeTime;
+    public int  BatteryFullLifeTime;
+}
+
+public static class TracePowerStatus {
+    [DllImport("kernel32.dll", SetLastError = true)]
+    [return: MarshalAs(UnmanagedType.Bool)]
+    public static extern bool GetSystemPowerStatus(out TRACE_POWER_STATUS status);
+}
+'@
+}
+
+$dir = Split-Path -Parent $OutFile
+if (-not (Test-Path -LiteralPath $dir)) { New-Item -ItemType Directory -Path $dir -Force | Out-Null }
+
+$stopFile = Join-Path $dir 'STOP-TRACE'
+Remove-Item -LiteralPath $stopFile -Force -ErrorAction SilentlyContinue
+
+if (-not (Test-Path -LiteralPath $OutFile)) {
+    Set-Content -LiteralPath $OutFile -Encoding UTF8 `
+        -Value 'ora;sursa;procent;autonomie_sec;acLineStatus;batteryFlag'
+}
+Add-Content -LiteralPath $OutFile -Encoding UTF8 `
+    -Value ('# start {0}' -f (Get-Date -Format 'yyyy-MM-dd HH:mm:ss'))
+
+$pana = (Get-Date).AddHours($MaxOre)
+
+while ((Get-Date) -lt $pana -and -not (Test-Path -LiteralPath $stopFile)) {
+    try {
+        $st = New-Object TRACE_POWER_STATUS
+        [void][TracePowerStatus]::GetSystemPowerStatus([ref]$st)
+
+        $sursa = switch ($st.ACLineStatus) {
+            0 { 'baterie' }
+            1 { 'retea' }
+            default { 'necunoscut' }
+        }
+        $procent = if ($st.BatteryLifePercent -le 100) { [int]$st.BatteryLifePercent } else { '' }
+        $autonomie = if ($st.BatteryLifeTime -ge 0) { [int]$st.BatteryLifeTime } else { '' }
+
+        Add-Content -LiteralPath $OutFile -Encoding UTF8 -Value (
+            '{0};{1};{2};{3};{4};{5}' -f (Get-Date -Format 'HH:mm:ss'), $sursa, $procent,
+            $autonomie, [int]$st.ACLineStatus, [int]$st.BatteryFlag)
+    } catch {
+        Add-Content -LiteralPath $OutFile -Encoding UTF8 -Value (
+            '{0};EROARE;;;;{1}' -f (Get-Date -Format 'HH:mm:ss'), $_.Exception.Message)
+    }
+    Start-Sleep -Seconds $IntervalSecunde
+}
+
+Add-Content -LiteralPath $OutFile -Encoding UTF8 `
+    -Value ('# stop {0}' -f (Get-Date -Format 'yyyy-MM-dd HH:mm:ss'))