feat: Add comprehensive optimization report for Tarot MCP Server

- Implemented performance optimizations including improved singleton pattern and card lookup efficiency.
- Enhanced error handling with a unified error type system and context-aware error messages.
- Introduced a strong type validation framework for input validation, including sanitization functions.
- Improved code quality through consistent formatting, ES module compatibility, and enhanced documentation.
- Expanded test coverage with detailed tests for reading manager and error handling scenarios.
- Created a simple test runner to validate optimizations and performance metrics.

jest.config.js

@@ -1,22 +1,33 @@
 export default {
-  preset: 'ts-jest/presets/default-esm',
-  extensionsToTreatAsEsm: ['.ts'],
+  preset: "ts-jest/presets/default-esm",
+  extensionsToTreatAsEsm: [".ts"],
   moduleNameMapper: {
-    '^(\\.{1,2}/.*)\\.js$': '$1',
+    "^(\\.{1,2}/.*)\\.js$": "$1",
   },
-  testEnvironment: 'node',
-  roots: ['<rootDir>/src'],
-  testMatch: ['**/__tests__/**/*.test.ts'],
+  testEnvironment: "node",
+  roots: ["<rootDir>/src"],
+  testMatch: ["**/__tests__/**/*.test.ts"],
   transform: {
-    '^.+\\.ts$': ['ts-jest', {
-      useESM: true,
-    }],
+    "^.+\\.ts$": [
+      "ts-jest",
+      {
+        useESM: true,
+        tsconfig: {
+          target: "ES2022",
+          module: "ESNext",
+        },
+      },
+    ],
   },
   collectCoverageFrom: [
-    'src/**/*.ts',
-    '!src/**/*.test.ts',
-    '!src/**/__tests__/**',
+    "src/**/*.ts",
+    "!src/**/*.test.ts",
+    "!src/**/__tests__/**",
   ],
-  coverageDirectory: 'coverage',
-  coverageReporters: ['text', 'lcov', 'html'],
+  coverageDirectory: "coverage",
+  coverageReporters: ["text", "lcov", "html"],
+  transformIgnorePatterns: ["node_modules/(?!(.*\\.mjs$))"],
+  setupFiles: ["<rootDir>/jest-crypto-mock.js"],
+  moduleFileExtensions: ["ts", "js", "json", "node"],
+  testTimeout: 10000,
 };