Add Server-Sent Events (SSE) support for Home Assistant integration

- Implemented comprehensive SSE manager with advanced client management
- Added dynamic event subscription and broadcasting capabilities
- Created robust rate limiting and client connection tracking
- Enhanced Home Assistant event handling with new SSE endpoints
- Updated package.json with UUID dependency for client identification
- Expanded test coverage for SSE and WebSocket event handling
- Improved type definitions for Home Assistant events and entities

src/types/hass.ts

@@ -47,4 +47,39 @@ export interface StateChangedEvent extends Event {
         new_state: Entity | null;
         old_state: Entity | null;
     };
+}
+
+export interface HassEntity {
+    entity_id: string;
+    state: string;
+    attributes: Record<string, any>;
+    last_changed?: string;
+    last_updated?: string;
+    context?: {
+        id: string;
+        parent_id?: string;
+        user_id?: string;
+    };
+}
+
+export interface HassState {
+    entity_id: string;
+    state: string;
+    attributes: {
+        friendly_name?: string;
+        description?: string;
+        [key: string]: any;
+    };
+}
+
+export interface HassEvent {
+    event_type: string;
+    data: any;
+    origin: string;
+    time_fired: string;
+    context: {
+        id: string;
+        parent_id?: string;
+        user_id?: string;
+    };
 }