620 -> 163, with common.sh staying the single entry point that sources
its own three parts - the shape the handoff prescribes for config.sh, so
all 49 consumers are untouched.
Verified by diffing `declare -F` after sourcing it against the same from
a detached worktree at HEAD: an identical 48-function set. For a library
this widely sourced that is the check that matters, not a passing lint.
The FOCUS_APPS_* arrays moved with is_focus_app_running, the only
function that reads them.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011w2Pj4Ek3ZNMQVYcFHgXDY
