feat: add recurring event deletion with three modes

Implement three deletion modes for recurring events:
- single: exclude specific occurrence via EXDATE mechanism
- future: set RRULE UNTIL to stop future occurrences
- all: delete entire event series

Changes include:
- Add exceptionDates field to CalendarEvent model
- Add RecurringDeleteMode type and DeleteRecurringEventDTO
- EventService.deleteRecurring() with mode-based logic using rrule library
- EventController DELETE endpoint accepts mode/occurrenceDate query params
- recurrenceExpander filters out exception dates during expansion
- AI tools support deleteMode and occurrenceDate for proposed deletions
- ChatService.confirmEvent() handles recurring delete modes
- New DeleteEventModal component for unified delete confirmation UI
- Calendar screen integrates modal for both recurring and non-recurring events

apps/server/src/logging/Logged.ts

@@ -80,7 +80,10 @@ export function Logged(name: string) {
               const method = String(propKey);
 
               // Summarize args to avoid huge log entries
-              log.debug({ method, args: summarizeArgs(methodArgs) }, `${method} started`);
+              log.debug(
+                { method, args: summarizeArgs(methodArgs) },
+                `${method} started`,
+              );
 
               const logCompletion = (err?: unknown) => {
                 const duration = Math.round(performance.now() - start);