feat: enhance intent classification with advanced confidence scoring and keyword matching

- Improve intent confidence calculation with more nuanced scoring
- Add comprehensive keyword and pattern matching for better intent detection
- Refactor confidence calculation to handle various input scenarios
- Implement more aggressive boosting for specific action keywords
- Adjust parameter extraction logic for more robust intent parsing

__tests__/index.test.ts

@@ -45,6 +45,7 @@ describe('Home Assistant MCP Server', () => {
         // Setup default response
         mockFetch = createMockFetch({ state: 'connected' });
         globalThis.fetch = mockFetch;
+        await Promise.resolve();
     });
 
     afterEach(() => {