feat: support multiple event proposals in single AI response

- Change proposedChange to proposedChanges array in ChatMessage type
- Add unique id and individual respondedAction to each ProposedEventChange
- Implement arrow navigation UI for multiple proposals with "Event X von Y" counter
- Add updateProposalResponse() method for per-proposal confirm/reject tracking
- GPTAdapter now collects multiple tool call results into proposals array
- Add RRULE documentation to system prompt (separate events for different times)
- Fix RRULE parsing to strip RRULE: prefix if present
- Add log summarization for large args (conversationHistory, existingEvents)
- Keep proposedChanges logged in full for debugging AI issues

apps/client/src/services/ChatService.ts

@@ -11,12 +11,17 @@ import {
 import { ApiClient } from "./ApiClient";
 
 interface ConfirmEventRequest {
+  proposalId: string;
   action: EventAction;
   event?: CreateEventDTO;
   eventId?: string;
   updates?: UpdateEventDTO;
 }
 
+interface RejectEventRequest {
+  proposalId: string;
+}
+
 export const ChatService = {
   sendMessage: async (data: SendMessageDTO): Promise<ChatResponse> => {
     return ApiClient.post<ChatResponse>("/chat/message", data);
@@ -25,12 +30,19 @@ export const ChatService = {
   confirmEvent: async (
     conversationId: string,
     messageId: string,
+    proposalId: string,
     action: EventAction,
     event?: CreateEventDTO,
     eventId?: string,
     updates?: UpdateEventDTO,
   ): Promise<ChatResponse> => {
-    const body: ConfirmEventRequest = { action, event, eventId, updates };
+    const body: ConfirmEventRequest = {
+      proposalId,
+      action,
+      event,
+      eventId,
+      updates,
+    };
     return ApiClient.post<ChatResponse>(
       `/chat/confirm/${conversationId}/${messageId}`,
       body,
@@ -40,9 +52,12 @@ export const ChatService = {
   rejectEvent: async (
     conversationId: string,
     messageId: string,
+    proposalId: string,
   ): Promise<ChatResponse> => {
+    const body: RejectEventRequest = { proposalId };
     return ApiClient.post<ChatResponse>(
       `/chat/reject/${conversationId}/${messageId}`,
+      body,
     );
   },