feat: implement health checks

run_checks.ps1

@@ -0,0 +1,35 @@
+$ErrorActionPreference = "Stop"
+
+Write-Host "=== Format check ==="
+stylua --check .
+
+if ($LASTEXITCODE -ne 0) {
+  Write-Host "FAIL: Format check failed. Run 'stylua .' to fix." -ForegroundColor Red
+  exit 1
+}
+
+Write-Host "PASS" -ForegroundColor Green
+
+Write-Host "`n=== Lint ==="
+
+lua-language-server --check=.
+
+if ($LASTEXITCODE -ne 0) {
+  Write-Host "FAIL: Lint found issues." -ForegroundColor Red
+  exit 1
+}
+
+Write-Host "PASS" -ForegroundColor Green
+
+Write-Host "`n=== Test ==="
+
+nvim --headless -c "PlenaryBustedDirectory tests/watchexec/ {minimal_init = 'tests/minimal_init.lua'}"
+
+if ($LASTEXITCODE -ne 0) {
+  Write-Host "FAIL: Tests failed." -ForegroundColor Red
+  exit 1
+}
+
+Write-Host "PASS" -ForegroundColor Green
+
+Write-Host "`nAll checks passed!" -ForegroundColor Green