v2.6 installer validation:
- Upgrade existing v2.5 news from86.171.237.121 to217.154.36.176.
- Upgrade existing LAN news from192.168.1.105 to217.154.36.176.
- Already-VPS news and repeated installs are skipped without rewriting EXE.
- Original game backup hash remains unchanged during migration.
- Undo restores byte-exact original game and prior matchmaker mapping.
- Dedicated mode preserves the hosted Windows machine's existing LAN mapping.

The inherited v2.5 installer was also tested with fresh installs, unsupported
executables, duplicate mappings, unrelated aliases/comments, wrong folders and
dedicated mode without game files. v2.6 keeps those checks and changes endpoint
selection and verified news migration as documented above.

New service validation:22 Node tests and3 Python tests passed, including live
TCP/UDP source metadata, same-IP multi-server registration, preserved replies,
TCP payload transport, HTTP GET/HEAD and RDWeb path rejection.
No live installation was changed by packaging tests.
VPS deployment, player pilot and real outside dedicated registration pending.
