Polish exe packaging (icon + version metadata) and automate releases

[CameronCrow]

What

Improves how StorageAnalyzer is packaged and shipped. The repo already built a working one-file storageanalyzer.exe, but it was a bare binary — no icon, no version metadata, and every release was a manual hand-build. This PR makes the exe a proper, identifiable Windows artifact and turns releasing it into a single tag push.

Changes

• Embedded icon + version resource (storageanalyzer.spec). The exe now carries an application icon and a Windows version resource — right-click → Properties → Details shows ProductName, FileVersion, CompanyName, and copyright. Both are derived from storageanalyzer.__version__, so they can never drift from the package version (the resource is generated into build/ at build time).
• App icon (packaging/). storageanalyzer.ico is a squarified-treemap tile that matches the HTML report's visual identity. It's checked in (so the exe build gains no new dependency) and regenerable with python packaging/make_icon.py (Pillow, build-time only).
• Optional installer (installer/storageanalyzer.iss + build-installer.ps1). A per-user Inno Setup installer: no admin required (installs under %LOCALAPPDATA%\Programs), opt-in "add to PATH" task, and a registered uninstaller in Apps & features. If Inno Setup isn't installed, the build script falls back to "exe only" with a note.
• Automated releases (.github/workflows/release.yml). Builds + smoke-tests the exe and installer on windows-latest for every push/PR, and publishes a GitHub Release with both attached on a v* tag. Releasing becomes: bump __version__, git tag vX.Y.Z, git push --tags.
• LICENSE. Adds the MIT license text (pyproject.toml already declared MIT; the installer bundles it).
• README. Documents the icon/version metadata, the installer, and tagged releases.

Verification

• Built the exe locally via pyinstaller storageanalyzer.spec; confirmed the embedded version resource (ProductName=StorageAnalyzer, FileVersion=1.0.0, CompanyName=Cameron Crow, MIT copyright), a present icon resource, working --version, and a successful native-engine scan producing an HTML report.
• pytest — all 37 tests pass.
• The committed surface is source/config only; build/, dist/, and the native .pyd remain gitignored.

Notes

• Scope is deliberately the exe/installer + release path (per "shipping an exe is fine, not iterating much") — not the separate native-GUI effort, which is in flight on its own branch.
• The Inno Setup installer and the GitHub Actions release flow build cleanly in principle but could not be exercised end-to-end in this headless environment (no Inno Setup installed locally; Actions needs a push to run). Worth a first manual build-installer.ps1 run and a throwaway tag to confirm.

🤖 Generated with Claude Code