✨Feature: add character creation logic and tests

- Implement character creation functions to handle adventurer setup.
- Add validation for adventurer name and selection of starting items.
- Introduce new items in sample content pack: Flint and Steel, Pouch, Wax Sealing Kit, and Backpack.
- Create tests for character creation functionality to ensure valid options and error handling.

✨Feature: implement dice rolling mechanics and tests

- Add functions for rolling various dice types (d3, d6, 2d6, d66) with validation.
- Implement modifier application with clamping for roll results.
- Create tests to verify correct behavior of dice rolling functions.

✨Feature: add table lookup functionality and tests

- Implement table lookup and resolution logic for defined tables.
- Support for modified ranges and fallback to nearest entries.
- Create tests to ensure correct table entry resolution based on roll results.

package.json

@@ -7,7 +7,8 @@
     "dev": "vite",
     "build": "npm run check && vite build",
     "preview": "vite preview",
-    "check": "tsc --noEmit -p tsconfig.app.json && tsc --noEmit -p tsconfig.node.json"
+    "check": "tsc --noEmit -p tsconfig.app.json && tsc --noEmit -p tsconfig.node.json",
+    "test": "vitest run"
   },
   "dependencies": {
     "react": "^19.0.0",
@@ -20,6 +21,7 @@
     "@types/react-dom": "^19.0.4",
     "@vitejs/plugin-react": "^4.4.1",
     "typescript": "^5.8.2",
-    "vite": "^6.2.0"
+    "vite": "^6.2.0",
+    "vitest": "^3.0.8"
   }
 }