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

packages/shared/src/models/ChatMessage.ts

@@ -7,10 +7,12 @@ export type EventAction = "create" | "update" | "delete";
 export type RespondedAction = "confirm" | "reject";
 
 export interface ProposedEventChange {
+  id: string; // Unique ID for each proposal
   action: EventAction;
   eventId?: string; // Required for update/delete
   event?: CreateEventDTO; // Required for create
   updates?: UpdateEventDTO; // Required for update
+  respondedAction?: RespondedAction; // User's response to this specific proposal
 }
 
 export interface ChatMessage {
@@ -18,8 +20,7 @@ export interface ChatMessage {
   conversationId: string;
   sender: MessageSender;
   content: string;
-  proposedChange?: ProposedEventChange;
-  respondedAction?: RespondedAction;
+  proposedChanges?: ProposedEventChange[]; // Array of event proposals
   createdAt?: Date;
 }
 
@@ -38,7 +39,7 @@ export interface SendMessageDTO {
 export interface CreateMessageDTO {
   sender: MessageSender;
   content: string;
-  proposedChange?: ProposedEventChange;
+  proposedChanges?: ProposedEventChange[];
 }
 
 export interface GetMessagesOptions {
@@ -47,6 +48,7 @@ export interface GetMessagesOptions {
 }
 
 export interface UpdateMessageDTO {
+  proposalId?: string; // Identifies which proposal to update
   respondedAction?: RespondedAction;
 }