Release ARSAS 1.6.22 FAT evidence build

[masarray]

Release scope

• bump canonical ARSAS application/package metadata to 1.6.22
• request the next Windows x64 stable publication through .release/windows.json
• keep pre-publication website/release-note evidence pinned to the currently published stable version so verification guards remain strict

Release intent

This release is intended for real FAT-bench validation of the merged PR #140 behavior. After this PR reaches main, release-windows.yml rebuilds and retests the exact release source, smoke-tests the portable EXE and installer, generates checksums/SBOM/provenance, and publishes stable GitHub Release v1.6.22. The release-documentation workflow then synchronizes published hashes/URLs before the 1.6.22 FAT release notes are updated.

FAT behavior under test

• smart, non-fuzzy IEC 61850 FAT reference matching
• time-sync supplemental evidence
• remote COMTRADE/FileDirectory evidence and latest filename reporting per IED
• File Service FAT PASS proves supported remote FileDirectory discovery; it does not claim FileOpen/FileRead/FileClose transfer success
• evidence survives FAT workspace restart/handover restore

Version note

The latest public release before this PR is v1.6.21 while canonical main metadata remained at 1.6.20, so this release intentionally advances to v1.6.22 rather than reusing an existing tag.

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