✨Feature: add level 1 content including room templates, encounter tables, and room generation logic

- Introduced contentHelpers for table and room template lookups.
- Created level1Rooms.ts with various room templates for level 1.
- Added level1Tables.ts containing encounter tables for animals, martial, dogs, people, fungal, guards, workers, and room types.
- Implemented room generation functions in rooms.ts to create rooms based on templates and tables.
- Added tests for room generation logic in rooms.test.ts to ensure correct functionality.

src/types/content.ts

@@ -165,11 +165,15 @@ export type RoomClass = "normal" | "small" | "large" | "special" | "start" | "st
 export type RoomTemplate = {
   id: string;
   level: number;
+  sourcePage?: number;
   roomClass: RoomClass;
   tableCode: string;
   tableEntryKey: string;
   title: string;
   text?: string;
+  encounterText?: string;
+  exitHint?: string;
+  unique?: boolean;
   dimensions?: {
     width: number;
     height: number;