feat(i18n): localize task-header, task-row and prime-schedule tooltips

Replace hardcoded tooltips with loc keys (kill-session, delete-task, toggle-subtasks, agent-suggested, star, remove-schedule) and drop the unused console.maximizeTip key; en/de kept in parity.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/ClaudeDo.Ui/Views/Modals/SettingsModalView.axaml

@@ -243,6 +243,7 @@
                         <TextBlock Classes="meta" Grid.Column="3" Text="{Binding LastRunLabel}" VerticalAlignment="Center"
                                    MinWidth="80"/>
                         <Button Classes="icon-btn" Grid.Column="4" Content="✕"
+                                ToolTip.Tip="{loc:Tr settings.prime.removeScheduleTip}"
                                 Command="{Binding $parent[ItemsControl].((vm:SettingsModalViewModel)DataContext).Prime.RemoveScheduleCommand}"
                                 CommandParameter="{Binding}"/>
                       </Grid>