Replace the download-file shortcut approach with compact self-contained picker URLs under /p/. Preserve long-link compatibility, selected install formats, and full published firmware filenames. Cover selection round trips and the redirect in the picker tests.
Mirror pinned GitHub release bytes at shorter version-specific Pages URLs. Verify size, SHA-256 and firmware format before publishing, and preserve deployed alias identities across later site builds.
Add RAK4631 Full Companion 1.17.1.10 preview2 UF2 and native DFU ZIP aliases, a short-download directory, documentation and CI regressions. Existing flashing tools use the ZIP URL without losing board-family checks.
Validation: 16 short-link and Pages guard regressions, hosted-doc routing tests, firmware picker tests, full MkDocs build and exact UF2/ZIP byte checks.
mikecarper