update dependencies and enhance documentation for A2A agent; improve README and FAQ sections

Author: vishalmysore

src/main/java/io/github/vishalmysore/a2a/domain/Task.java

@@ -6,6 +6,8 @@
 import io.github.vishalmysore.common.CommonClientRequest;
 import io.github.vishalmysore.common.CommonClientResponse;
 import lombok.Data;
+import lombok.Getter;
+import lombok.Setter;
 import lombok.ToString;
 
 import java.util.ArrayList;
@@ -28,7 +30,8 @@
  * All implementation of Task can be done in applications extending this library
  */
 @Data
-
+@Getter
+@Setter
 @ToString
 public class Task implements A2ATask, CommonClientRequest, CommonClientResponse {
 

src/main/java/io/github/vishalmysore/common/CommonClientResponse.java

@@ -1,6 +1,7 @@
 package io.github.vishalmysore.common;
 
 import io.github.vishalmysore.a2a.domain.SendTaskResponse;
+import io.github.vishalmysore.a2a.domain.Task;
 import io.github.vishalmysore.a2a.domain.TextPart;
 import io.github.vishalmysore.mcp.domain.CallToolResult;
 import io.github.vishalmysore.mcp.domain.TextContent;
@@ -37,6 +38,19 @@ default String getTextResult() {
                 }
             }
 
+            return "";
+        } else if (this instanceof Task) {
+            Task task = (Task) this;
+            var status = task.getStatus();
+            if (status != null && status.getMessage() != null) {
+                var parts = status.getMessage().getParts();
+                if (parts != null && !parts.isEmpty()) {
+                    Object lastPart = parts.get(parts.size() - 1);
+                    if (lastPart instanceof TextPart) {
+                        return ((TextPart) lastPart).getText();
+                    }
+                }
+            }
             return "";
         } else {
             throw new IllegalStateException("Unexpected response type: " + this.getClass());