Remove accidentally-committed dev-session screenshots/scripts

The previous commit (96a9180) pulled in 38 debugging screenshots,
the PowerShell automation driver, and the dev.log file alongside
the actual fix. Remove them from the working tree and ignore them
going forward via /-prefixed patterns in .gitignore (so the
legitimate src-tauri/icons/*.png stay tracked).

Files remain in git history; the binary diff is small so this isn't
worth a force-push to scrub.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.gitignore

@@ -18,3 +18,12 @@ src-tauri/gen/
 .env
 .env.*
 !.env.example
+
+# Dev-session scratch (root-only — leaves src-tauri/icons/*.png alone)
+/dev.log
+/dev.err
+/screenshot.png
+/screen*.png
+/shot*.png
+/tiletopia-window.png
+/tilescript.ps1

tilescript.ps1

@@ -1,60 +0,0 @@
-# Helpers for driving the tiletopia window from PowerShell.
-Add-Type -AssemblyName System.Windows.Forms
-Add-Type -AssemblyName System.Drawing
-Add-Type @'
-using System;
-using System.Runtime.InteropServices;
-public class W {
-  [DllImport("user32.dll")] public static extern bool GetWindowRect(IntPtr h, out RECT r);
-  [DllImport("user32.dll")] public static extern bool SetForegroundWindow(IntPtr h);
-  [DllImport("user32.dll")] public static extern bool ShowWindow(IntPtr h, int n);
-  [DllImport("user32.dll")] public static extern bool SetCursorPos(int x, int y);
-  [DllImport("user32.dll")] public static extern void mouse_event(uint flags, uint dx, uint dy, uint dwData, int extraInfo);
-  [StructLayout(LayoutKind.Sequential)] public struct RECT { public int Left, Top, Right, Bottom; }
-}
-'@
-
-function Get-TileWindow {
-  $p = Get-Process tiletopia -ErrorAction Stop | Where-Object { $_.MainWindowHandle -ne 0 } | Select-Object -First 1
-  if (-not $p) { throw "no tiletopia window" }
-  return $p
-}
-
-function Bring-ToFront {
-  $p = Get-TileWindow
-  [W]::ShowWindow($p.MainWindowHandle, 9) | Out-Null  # SW_RESTORE
-  [W]::SetForegroundWindow($p.MainWindowHandle) | Out-Null
-  Start-Sleep -Milliseconds 300
-  $r = New-Object W+RECT
-  [W]::GetWindowRect($p.MainWindowHandle, [ref] $r) | Out-Null
-  return $r
-}
-
-function Save-Shot([string]$path) {
-  $r = Bring-ToFront
-  $w = $r.Right - $r.Left
-  $h = $r.Bottom - $r.Top
-  $bmp = New-Object System.Drawing.Bitmap $w, $h
-  $g = [System.Drawing.Graphics]::FromImage($bmp)
-  $g.CopyFromScreen($r.Left, $r.Top, 0, 0, (New-Object System.Drawing.Size $w, $h))
-  $bmp.Save($path)
-  $g.Dispose()
-  $bmp.Dispose()
-  Write-Host ("saved " + $path + " (" + $w + "x" + $h + " at " + $r.Left + "," + $r.Top + ")")
-  return @{ x = $r.Left; y = $r.Top; w = $w; h = $h }
-}
-
-# Click at *window-relative* coordinates (so we don't depend on the window's
-# screen position from one run to the next).
-function Click-Win([int]$relX, [int]$relY) {
-  $r = Bring-ToFront
-  $absX = $r.Left + $relX
-  $absY = $r.Top + $relY
-  [W]::SetCursorPos($absX, $absY) | Out-Null
-  Start-Sleep -Milliseconds 80
-  [W]::mouse_event(0x0002, 0, 0, 0, 0)  # LEFTDOWN
-  Start-Sleep -Milliseconds 30
-  [W]::mouse_event(0x0004, 0, 0, 0, 0)  # LEFTUP
-  Start-Sleep -Milliseconds 120
-  Write-Host ("clicked window-rel " + $relX + "," + $relY + " (abs " + $absX + "," + $absY + ")")
-}