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-crypto-mock.js

@@ -0,0 +1,12 @@
+// Mock crypto for Jest testing environment
+Object.defineProperty(global, 'crypto', {
+  value: {
+    getRandomValues: function(array) {
+      for (let i = 0; i < array.length; i++) {
+        array[i] = Math.floor(Math.random() * 0xffffffff);
+      }
+      return array;
+    }
+  },
+  writable: true
+});