Merge file picker into command palette. Single Cmd+P entry searches
files, sessions, settings pages and commands; groups re-order by best
fuzzy score per source. Sessions show branch labels; git status is
lazily fetched for all session directories on open.
Drop QuickOpenDialog and Cmd+K shortcut.
* fix(i18n): polish Korean localization copy
* fix(i18n): refine Korean terminology and copy consistency
* fix(i18n): improve Korean copy consistency in settings and service UI
* fix(i18n): reconcile Korean locale gaps with follow-up review
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Signed-off-by: Jinhyeok Lee <zenyr@zenyr.com>