Added support for openai api tts.

public/js/tts-handler.js

@@ -9,6 +9,9 @@ export class TTSHandler {
         
         // Set up event dispatcher
         this.eventTarget = document.createElement('div');
+        
+        // Module state tracking - conform to BaseModule interface
+        this.state = 'PENDING';
     }
     
     /**
@@ -77,6 +80,27 @@ export class TTSHandler {
         return [];
     }
     
+    /**
+     * Get the current module state
+     * @returns {string} - Current state
+     */
+    getState() {
+        return this.state;
+    }
+    
+    /**
+     * Change the module state
+     * @param {string} newState - The new state
+     */
+    changeState(newState) {
+        this.state = newState;
+        
+        // Dispatch state change event
+        this.dispatchEvent('state:changed', {
+            state: newState
+        });
+    }
+    
     /**
      * Dispatch a custom event
      * @param {string} eventName - Name of the event