chore: migrate project to Bun testing framework and update configuration

- Replace Jest with Bun's native testing framework
- Update test configuration and utilities to support Bun test environment
- Add mock implementations for SSE and security testing
- Refactor test setup to use Bun's testing utilities
- Update package dependencies and scripts to align with Bun testing
- Enhance type definitions for Bun test mocking

src/__mocks__/litemcp.ts

@@ -0,0 +1,61 @@
+export class LiteMCP {
+    name: string;
+    version: string;
+    config: any;
+
+    constructor(config: any = {}) {
+        this.name = 'home-assistant';
+        this.version = '1.0.0';
+        this.config = config;
+    }
+
+    async start() {
+        return Promise.resolve();
+    }
+
+    async stop() {
+        return Promise.resolve();
+    }
+
+    async connect() {
+        return Promise.resolve();
+    }
+
+    async disconnect() {
+        return Promise.resolve();
+    }
+
+    async callService(domain: string, service: string, data: any = {}) {
+        return Promise.resolve({ success: true });
+    }
+
+    async getStates() {
+        return Promise.resolve([]);
+    }
+
+    async getState(entityId: string) {
+        return Promise.resolve({
+            entity_id: entityId,
+            state: 'unknown',
+            attributes: {},
+            last_changed: new Date().toISOString(),
+            last_updated: new Date().toISOString()
+        });
+    }
+
+    async setState(entityId: string, state: string, attributes: any = {}) {
+        return Promise.resolve({ success: true });
+    }
+
+    onStateChanged(callback: (event: any) => void) {
+        // Mock implementation
+    }
+
+    onEvent(eventType: string, callback: (event: any) => void) {
+        // Mock implementation
+    }
+}
+
+export const createMCP = (config: any = {}) => {
+    return new LiteMCP(config);
+};