Add unp4k.fs documentation to README

Document prerequisites (Dokan), command-line usage with examples, and the
interactive runtime configuration options.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Revert "Add generated downloads section to release notes"

This reverts commit c2e3d5d.

Add generated downloads section to release notes

Append a Downloads section to the release body listing all 15 artifacts
grouped by product (unp4k-suite, unp4k, unforge) with the correct version.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Split release assets per platform and product

Replace the merged-per-component upload with a cross-product matrix of
artifact × rid, producing 15 individual release assets such as
unp4k-win-x64-v{ver}.zip, unforge-linux-arm64-v{ver}.zip, etc.
Also drop the re-zip step since build artifacts are already per-component zips.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Override PublishSingleFile=false for Linux builds

unp4k.fs sets PublishSingleFile=true which conflicts with UseAppHost=false.
Override it at the command line so Linux builds can publish without an apphost.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Update release.yaml

Merge pull request #39 from dolkensp/feature/two-stage-pipeline

Build in two stages

Merge pull request #38 from dolkensp/feature/github-actions

Implement GitHub Pipeline for CI builds

Merge pull request #23 from dolkensp/lgtm

Add lgtm support

Merge pull request #22 from jprimke/master

use InvariantCulture for using on all countries