Add CYD host PC info panel with serial SI protocol and LVGL bars.

ESP32 shows CPU/GPU/RAM/disk from host/send_sysinfo.ps1 over USB; firmware packages for 2.8 and 3.5 included.

Co-authored-by: Cursor <cursoragent@cursor.com>

firmware/export_from_build.ps1

@@ -0,0 +1,71 @@
+# Export firmware bins from PlatformIO build.
+# Default: 2.8" (cyd -> firmware/cyd)
+# 3.5":    .\firmware\export_from_build.ps1 -Env cyd_35r
+#          (only after: pio run -e cyd_35r)
+
+param(
+  [switch]$SkipBuild,
+  [ValidateSet("cyd", "cyd_35r")]
+  [string]$Env = "cyd"
+)
+
+$ErrorActionPreference = "Stop"
+$root = Split-Path -Parent (Split-Path -Parent $MyInvocation.MyCommand.Path)
+Set-Location $root
+
+$env:Path = "C:\Users\dsx2016\AppData\Local\Programs\Python\Python312\Scripts;" + $env:Path
+
+if (-not $SkipBuild) {
+  pio run -e $Env
+  if ($LASTEXITCODE -ne 0) { exit $LASTEXITCODE }
+}
+
+$src = Join-Path $root (".pio\build\" + $Env)
+if ($Env -eq "cyd_35r") {
+  $dstName = "cyd_35r"
+  $boardLine = "board: ESP32-3248S035 (ST7796)"
+  $boardIdHint = "esp32-3248s035"
+} else {
+  $dstName = "cyd"
+  $boardLine = "board: ESP32-2432S028R (ILI9341)"
+  $boardIdHint = "esp32-2432s028"
+}
+$dst = Join-Path $root ("firmware\" + $dstName)
+New-Item -ItemType Directory -Force -Path $dst | Out-Null
+
+foreach ($f in @("bootloader.bin", "partitions.bin", "firmware.bin")) {
+  $p = Join-Path $src $f
+  if (-not (Test-Path $p)) { Write-Error "Missing build artifact: $p — build with: pio run -e $Env" }
+  Copy-Item $p $dst -Force
+}
+
+$bootApp = Join-Path $env:USERPROFILE ".platformio\packages\framework-arduinoespressif32\tools\partitions\boot_app0.bin"
+if (-not (Test-Path $bootApp)) {
+  Write-Error "boot_app0.bin not found under PlatformIO packages"
+}
+Copy-Item $bootApp (Join-Path $dst "boot_app0.bin") -Force
+
+$git = ""
+try { $git = (git -C $root rev-parse --short HEAD).Trim() } catch { $git = "unknown" }
+$date = Get-Date -Format "yyyy-MM-dd"
+$hashes = Get-ChildItem (Join-Path $dst "*.bin") | Get-FileHash -Algorithm SHA256
+$lines = @(
+  "name: CYD serverinfotest ($dstName)",
+  "git: $git",
+  "date: $date",
+  $boardLine,
+  "flash_size: 4MB",
+  "offsets:",
+  "  0x1000  bootloader.bin",
+  "  0x8000  partitions.bin",
+  "  0xe000  boot_app0.bin",
+  "  0x10000 firmware.bin",
+  "sha256:"
+)
+foreach ($h in $hashes) {
+  $lines += ("  {0,-15} {1}" -f (Split-Path $h.Path -Leaf), $h.Hash)
+}
+$lines | Set-Content -Encoding utf8 (Join-Path $dst "VERSION.txt")
+
+
+Write-Host "Exported -> $dst (env=$Env git=$git)"