chore: add command palette with Ctrl+K for quick navigation and actions to changelog

docs/changelog/v0.2.10.md

@@ -1,6 +1,10 @@
 # v0.2.10
 
-Follow-up patch release for v0.2.9 addressing auto-updater regressions and input polish.
+Follow-up patch release for v0.2.9 addressing auto-updater regressions, adding a command palette, and input polish.
+
+## New Features
+
+- Command palette — press Ctrl+K from the message input (or anywhere in the main window) to open a searchable dialog for navigating channels and triggering app actions (connect, disconnect, logout, profile, status, create/delete channel, saved servers, toggle users panel, check for updates, quit). Fuzzy matches against both the label and the underlying key so typing `ch` surfaces channel actions alongside `#channel` entries
 
 ## Bug Fixes
 
@@ -8,3 +12,7 @@ Follow-up patch release for v0.2.9 addressing auto-updater regressions and input
 - Fix pre-update backup failing when a Serilog-held log file is locked — `UpdateBackupService` now enumerates files manually, skips the `logs/` directory and `.log` files, and logs-and-continues on `IOException`/`UnauthorizedAccessException` instead of aborting the whole backup
 - Simplify update progress dispatch — remove redundant `Application.Invoke` wrappers around progress updates that are already called from the UI thread (introduced while fixing the freeze above)
 - Fix cursor position being reset to the start of the line when auto-completing commands in the CLI app — insertion point is now moved to the end of the completed text
+
+## Refactoring
+
+- Move search-dialog dispatch out of `MainWindow` into `AppOrchestrator` — `MainWindow` now just raises `OnSearchRequested`, keeping the view dumb and letting the orchestrator own navigation/action routing