Produce .msi instead of .exe (fixes DEV-135)

[aptiko]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.34%. Comparing base (3baeea6) to head (19ccb17).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master      #53   +/-   ##
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  Coverage   89.34%   89.34%           
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  Files           6        6           
  Lines         826      826           
=======================================
  Hits          738      738           
  Misses         88       88           

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[Copilot]

Pull request overview

This PR migrates the Windows distribution from a single-file executable to a proper MSI installer, addressing DEV-135. The change eliminates the issue of PyInstaller's single-file mode creating temporary files that waste disk space. The new installer uses WiX Toolset 6.0 to create an MSI package that installs to C:\Program Files\Loggertodb by default.

Key changes:

• Introduced WiX Toolset 6.0 configuration for MSI generation with license agreement and installation directory selection
• Modified PyInstaller build to create a directory bundle instead of single-file executable
• Updated GitHub Actions workflow to build MSI and upload it as release artifact

Reviewed changes

Copilot reviewed 6 out of 9 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
pyproject.toml	Excludes installer directory from Python package distribution
installer/loggertodb.wixproj	Defines WiX project configuration with SDK version, platform, and output naming
installer/Package.wxs	Specifies MSI package structure, files to include, and UI components
installer/license.rtf	Provides GPL license text in RTF format for installer display
docs/release-notes.rst	Documents version 4.3 release with MSI installer change
docs/installation.rst	Updates Windows installation instructions to reference MSI file
bin/loggertodb-windows	Updates comment to reflect non-single-file PyInstaller usage
.gitignore	Adds WiX build output directories to ignore list
.github/workflows/build-exe.yml	Installs WiX tooling and modifies build process to generate MSI

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