v0.6.0 — Windows installer

PBI Port Wrapper v0.6.0 — Windows installer

This release adds a real Windows installer alongside the portable ZIP, so getting
PBI Port Wrapper set up as a Power BI Desktop External Tool no longer means copying
files by hand.

• MSI installer (#33) — PBIPortWrapper.msi installs the app to Program Files,
  replacing the download-extract-run flow. The portable ZIP is still published for
  anyone who prefers it.
• Start Menu integration (#34) — a PBI Port Wrapper entry launches the app.
• External Tool auto-registration (#5) — the installer registers the app as a
  Power BI Desktop External Tool, so it shows up on the External Tools ribbon
  after a Desktop restart, with no manual pbitool.json copying.
• Silent / unattended install (#36) — standard msiexec /qn support for
  scripted and Group Policy / SCCM / Intune deployment.
• Installer documentation (#38) — build, install, silent-install, and
  troubleshooting guide in docs/installer.md.

Known limitation

The installer and executable are not code-signed, so Windows SmartScreen /
Defender warns on first run — click More info → Run anyway. See
KNOWN_LIMITATIONS.md §3 (#35).

Install

• Installer (recommended): download PBIPortWrapper.msi, run it, and launch
  from the Start Menu or the Power BI Desktop External Tools ribbon.
• Portable ZIP: download and extract PBIPortWrapper-v0.6.0-win-x64.zip, then
  run PBIPortWrapper.exe.

Full details in CHANGELOG.md.