Replace all seanmorley15/Voyage repo URLs, ghcr.io/seanmorley15 container
image references, seanmorley.com/sponsor and buymeacoffee links with
the new repo (github.com/Alex-Wiesner/voyage) and new GHCR images
(ghcr.io/alex-wiesner/voyage-*). Attribution to original AdventureLog
author Sean Morley is preserved.
- Replace all AdventureLog references with Voyage across ~102 files
(7 case variants: AdventureLog, adventurelog, Adventurelog, ADVENTURELOG,
AdventUrelog, AdventureLOG, adventure-log, adventure_log)
- Rename brand, static, and documentation assets to use voyage naming
- Rename install_adventurelog.sh → install_voyage.sh
- Update README.md and voyage_overview.md to credit AdventureLog as
the upstream project and Sean Morley as its original creator
