build: add VSCode launch configuration to automatically build MPQ and

launch WoW

Pipeline:
1. tool/src/main.rs compiles MPQ and puts it at $WOW_HOME/Data
2. reload_wow.bat cleans cache and runs Wow.exe

TODO:
- rebuild all patches instead of only patch-ruRU-5.MPQ
- implement "smart rebuild". Do not create new archive if nothing was
  changed

run.ps1

@@ -0,0 +1,68 @@
+# Stop on errors
+$ErrorActionPreference = "Stop"
+
+# --- Resolve project root (folder where script is located)
+$ROOT = Split-Path -Parent $MyInvocation.MyCommand.Path
+
+# --- Load .env if WOW_HOME not already set
+if (-not $env:WOW_HOME) {
+    $envFile = Join-Path $ROOT ".env"
+
+    if (Test-Path $envFile) {
+        Write-Host "Loading .env file..."
+
+        Get-Content $envFile | ForEach-Object {
+            if ($_ -match "^\s*([^#][^=]+)=(.+)$") {
+                $name = $matches[1].Trim()
+                $value = $matches[2].Trim()
+                [System.Environment]::SetEnvironmentVariable($name, $value)
+                Set-Item -Path "Env:$name" -Value $value
+            }
+        }
+    }
+}
+
+# --- Validate WOW_HOME
+if (-not $env:WOW_HOME) {
+    Write-Error "WOW_HOME is not set (env or .env)"
+    exit 1
+}
+
+$WOW_HOME = $env:WOW_HOME
+Write-Host "WOW_HOME = $WOW_HOME"
+
+# --- Paths
+$INPUT_DIR = Join-Path $ROOT "patch-ruRU-5"
+$OUTPUT_MPQ = Join-Path $WOW_HOME "Data\ruRU\patch-ruRU-5.MPQ"
+$TOOL = Join-Path $ROOT "tool\target\release\tool.exe"
+$RELOAD_SCRIPT = Join-Path $ROOT "reload_wow.bat"
+
+# --- Ensure tool exists
+if (!(Test-Path $TOOL)) {
+    Write-Host "Building Rust tool..."
+    Push-Location (Join-Path $ROOT "tool")
+    cargo build --release
+    Pop-Location
+}
+
+# --- Ensure WoW directory exists
+$wowDataDir = Join-Path $WOW_HOME "Data\ruRU"
+if (!(Test-Path $wowDataDir)) {
+    New-Item -ItemType Directory -Force -Path $wowDataDir | Out-Null
+}
+
+# --- Build MPQ
+Write-Host "Building MPQ..."
+& $TOOL $INPUT_DIR $OUTPUT_MPQ
+
+# --- Verify result
+if (!(Test-Path $OUTPUT_MPQ)) {
+    Write-Error "MPQ build failed!"
+    exit 1
+}
+
+Write-Host "MPQ created at $OUTPUT_MPQ"
+
+# --- Run WoW reload script
+Write-Host "Launching WoW..."
+cmd /c $RELOAD_SCRIPT