feat(exam): version templates on dashboard

src/types/exam.types.ts

@@ -31,6 +31,13 @@ export interface CreateTemplatePayload {
   institute_id?: string;
 }
 
+export interface UpdateTemplateMetaPayload {
+  title?: string;
+  subject?: string | null;
+  page_count?: number | null;
+  status?: ExamTemplateStatus;
+}
+
 /** Canvas children (used from S4-9 onward; defined here so the seam is complete). */
 export interface ExamQuestion {
   id: string;
@@ -44,16 +51,27 @@ export interface ExamQuestion {
   mark_scheme: Record<string, unknown>;
   is_container: boolean;
   spec_ref: string | null;
+  bounds?: Record<string, number> | null;
+  page?: number | null;
 }
 
+export type ExamResponseAreaKind =
+  | 'response'
+  | 'context'
+  | 'question_number'
+  | 'mark_area'
+  | 'reference'
+  | 'furniture';
+
 export interface ExamResponseArea {
   id: string;
   question_id: string;
   template_id: string;
   page: number;
   bounds: Record<string, number>;
-  kind: 'response' | 'context';
+  kind: ExamResponseAreaKind;
   response_form: string | null;
+  context_type?: string | null;
   source: 'manual' | 'ai';
   confirmed: boolean;
   confidence: number | null;