feat: Add support for 12-hour clock formatting on timelines (#1862)

- Closes #1779 


[skip ci]

src/config/types.ts

@@ -1060,11 +1060,18 @@ const timelineCoreConfigDefault = {
   show_recordings: true,
   style: 'stack' as const,
   pan_mode: 'pan' as const,
+  format: {
+    '24h': true,
+  },
 };
 
 const timelinePanModeSchema = z.enum(['pan', 'seek', 'seek-in-media', 'seek-in-camera']);
 export type TimelinePanMode = z.infer<typeof timelinePanModeSchema>;
 
+const timelineFormatSchema = z.object({
+  '24h': z.boolean().optional().default(timelineCoreConfigDefault.format['24h']),
+});
+
 const timelineCoreConfigSchema = z.object({
   clustering_threshold: z
     .number()
@@ -1085,6 +1092,7 @@ const timelineCoreConfigSchema = z.object({
     .default(timelineCoreConfigDefault.show_recordings),
   style: z.enum(['stack', 'ribbon']).optional().default(timelineCoreConfigDefault.style),
   pan_mode: timelinePanModeSchema.optional().default(timelineCoreConfigDefault.pan_mode),
+  format: timelineFormatSchema.optional().default(timelineCoreConfigDefault.format),
 });
 export type TimelineCoreConfig = z.infer<typeof timelineCoreConfigSchema>;