Keep mise upgrades from pruning versions still in use
(cherry picked from commit 0973169098)
(cherry picked from commit e4fa14cefff0a19e72bb9f41722edd6b6f1afd93)
Add Hermes as a desktop app and a coding agent
(cherry picked from commit b71dcad96e)
(cherry picked from commit b27908369ed5fa95ca24dca2c68b895032d879d2)
Remove legacy online installer entrypoints, collapse migrations for 4.0, and move setup responsibilities into target-side system, hardware, and user commands.