build: add build script and task

.gitignore

@@ -0,0 +1 @@
+/proj/*

.vscode/tasks.json

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+{
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "Create project",
+            "type": "shell",
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "windows": {
+                "command": "${workspaceRoot}\\create-project.ps1"
+            },
+        }
+    ],
+}

create-project.ps1

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+$projectFolder = "proj"
+$slnName = "dbd-unlocker"
+
+function Initialize-Project {
+    # generation
+    Write-Host "Generating project"
+    Set-Location $projectFolder
+    $cmakeProcess = Start-Process -FilePath cmake -ArgumentList @("..") -NoNewWindow -Wait -PassThru
+    Set-Location ..
+
+    if ($cmakeProcess.ExitCode -ne 0) {
+        Write-Host "CMake generation failed"
+        exit 1
+    }
+
+    # sln open
+    try {
+        $slnPath = "$projectFolder\$slnName.sln"
+
+        $solutionFile = Get-Item -Path $slnPath -ErrorAction Stop
+        $solutionFullName = $solutionFile.FullName
+        
+        $vsProcesses = Get-CimInstance -Query "SELECT CommandLine FROM Win32_Process WHERE Name = 'devenv.exe'"
+        $pattern = [Regex]::Escape($solutionFullName)
+        $isOpen = $vsProcesses | Where-Object { $_.CommandLine -match $pattern }
+
+        if (-not $isOpen) {
+            Write-Host "Starting Visual Studio..." -ForegroundColor Cyan
+            Start-Process -FilePath $solutionFullName
+        }
+        else {
+            Write-Host "Solution '$($solutionFile.Name)' is already open." -ForegroundColor Yellow
+        }
+    }
+    catch {
+        Write-Error "Failed to open solution: $($_.Exception.Message)"
+    }
+}
+
+if (-not (Test-Path $projectFolder)) {
+    New-Item -ItemType Directory -Path $projectFolder | Out-Null
+}
+
+Initialize-Project