feat: add configurable timeline range

scripts/importMysteryTemplate.ts

@@ -18,6 +18,7 @@ type MysteryManifest = {
   name: string
   title: string
   subtitle: string
+  timelineRange?: { start: string; end: string }
   brief: { body: string; concepts: { label: string; context: string; expectedPartyKind: PartyKind }[] }
   documents: MysteryDocument[]
   folders: { key: string; title: string; content: string; x: number; y: number; width: number; members: string[] }[]
@@ -66,6 +67,7 @@ export async function importMysteryTemplate(manifestPath: string, baseUrl = 'htt
 
   const folderIds = new Map(manifest.folders.map(folder => [folder.key, randomUUID()]))
   state.brief = { body: manifest.brief.body, concepts: manifest.brief.concepts.map(concept => ({ id: randomUUID(), ...concept })) }
+  state.timelineRange = manifest.timelineRange
   state.documents = [...documents.values()]
   state.evidence = manifest.folders.map(folder => ({
     id: folderIds.get(folder.key)!, type: 'folder', title: folder.title, content: folder.content,