✨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/data/sampleContentPack.ts

@@ -1,6 +1,8 @@
 import type { ContentPack } from "@/types/content";
 
 import { contentPackSchema } from "@/schemas/content";
+import { level1RoomTemplates } from "./level1Rooms";
+import { level1EncounterTables } from "./level1Tables";
 
 const samplePack = {
   version: "0.1.0",
@@ -10,6 +12,7 @@ const samplePack = {
     "Source/2D6 Dungeon - Play Sheet.pdf",
   ],
   tables: [
+    ...level1EncounterTables,
     {
       id: "table.weapon-manoeuvres-1",
       code: "WMT1",
@@ -169,6 +172,7 @@ const samplePack = {
     {
       id: "room.level1.entry",
       level: 1,
+      sourcePage: 42,
       roomClass: "start",
       tableCode: "L1R",
       tableEntryKey: "entry",
@@ -182,6 +186,7 @@ const samplePack = {
       tags: ["starter", "entry"],
       mvp: true,
     },
+    ...level1RoomTemplates,
   ],
   townServices: [
     {