cleanup older downloads

scripts/install.ps1

@@ -87,6 +87,13 @@ if ($HadPrevious) {
   Remove-Item $StashDir -Recurse -Force -ErrorAction SilentlyContinue
 }
 
+# ── Remove old extension files from Downloads ──────────────────────────────────
+Write-Host "Cleaning up old extension files in Downloads..."
+Get-ChildItem -Path $Downloads -Filter "Holesail-Browser-*.zip" -ErrorAction SilentlyContinue |
+  ForEach-Object { Remove-Item $_.FullName -Force; Write-Host "  Removed: $($_.Name)" }
+Get-ChildItem -Path $Downloads -Filter "Holesail-Browser-*.xpi" -ErrorAction SilentlyContinue |
+  ForEach-Object { Remove-Item $_.FullName -Force; Write-Host "  Removed: $($_.Name)" }
+
 Write-Host "Downloading extension..."
 Invoke-WebRequest "$ReleaseBase/$ExtZip" -OutFile "$Downloads\$ExtZip"
 Write-Host "  Saved: $Downloads\$ExtZip"

scripts/install.sh

@@ -149,6 +149,12 @@ fi
 
 echo "  Binary: $HOST_BIN"
 
+# ── Remove old extension files from Downloads ──────────────────────────────────
+echo "Cleaning up old extension files in Downloads..."
+for f in "${DOWNLOADS}"/Holesail-Browser-*.zip "${DOWNLOADS}"/Holesail-Browser-*.xpi; do
+  [[ -f "$f" ]] && rm -f "$f" && echo "  Removed: $f" || true
+done
+
 echo "Downloading extension..."
 curl -fsSL "${RELEASE_BASE}/${EXT_ZIP}" -o "${DOWNLOADS}/${EXT_ZIP}"
 echo "  Saved: ${DOWNLOADS}/${EXT_ZIP}"