chore: add repo scaffolding (compose, scripts, gitignore, env example)

start.ps1

@@ -0,0 +1,32 @@
+# Start the full procurement stack (postgres + api + frontend)
+# Run this from the my-project folder (or double-click).
+#
+#   powershell -ExecutionPolicy Bypass -File .\start.ps1
+
+$ErrorActionPreference = "Stop"
+$here = Split-Path -Parent $MyInvocation.MyCommand.Path
+Set-Location $here
+
+Write-Host ""
+Write-Host "==============================================" -ForegroundColor Cyan
+Write-Host "  Procurement stack — starting Docker..."     -ForegroundColor Cyan
+Write-Host "==============================================" -ForegroundColor Cyan
+
+docker compose up -d --build
+
+if ($LASTEXITCODE -ne 0) {
+    Write-Host "Build/start failed. Check 'docker compose logs'." -ForegroundColor Red
+    exit 1
+}
+
+Write-Host ""
+Write-Host "Waiting for services..." -ForegroundColor Yellow
+Start-Sleep -Seconds 5
+docker compose ps
+
+Write-Host ""
+Write-Host "Frontend : http://localhost:3000" -ForegroundColor Green
+Write-Host "API docs : http://localhost:8000/docs" -ForegroundColor Green
+Write-Host "DB       : localhost:5432  (procurement / postgres / postgres)" -ForegroundColor Green
+Write-Host ""
+Write-Host "Stop: docker compose down   |   Full reset: docker compose down -v && up -d --build" -ForegroundColor DarkGray