feat: Implement Tarot session management and reading spreads

- Added TarotSessionManager class to manage tarot reading sessions, including session creation, retrieval, reading addition, and cleanup of old sessions.
- Defined various tarot spreads in a new spreads module, including single card, three card, Celtic cross, and more, with detailed descriptions and meanings for each position.
- Created core types for tarot cards, readings, and sessions in a new types module to structure data effectively.
- Configured TypeScript settings in tsconfig.json for improved development experience and compatibility.

jest.config.js

@@ -0,0 +1,22 @@
+export default {
+  preset: 'ts-jest/presets/default-esm',
+  extensionsToTreatAsEsm: ['.ts'],
+  moduleNameMapper: {
+    '^(\\.{1,2}/.*)\\.js$': '$1',
+  },
+  testEnvironment: 'node',
+  roots: ['<rootDir>/src'],
+  testMatch: ['**/__tests__/**/*.test.ts'],
+  transform: {
+    '^.+\\.ts$': ['ts-jest', {
+      useESM: true,
+    }],
+  },
+  collectCoverageFrom: [
+    'src/**/*.ts',
+    '!src/**/*.test.ts',
+    '!src/**/__tests__/**',
+  ],
+  coverageDirectory: 'coverage',
+  coverageReporters: ['text', 'lcov', 'html'],
+};