fix: add backwards compat shims for old annotations

Author: LucaButBoring

mcp/src/main/java/io/modelcontextprotocol/spec/McpSchema.java

@@ -5,10 +5,7 @@
 package io.modelcontextprotocol.spec;
 
 import java.io.IOException;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
+import java.util.*;
 
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.annotation.JsonInclude;
@@ -1291,6 +1288,22 @@ public TextContent(String content) {
 		public TextContent(List<Role> audience, Double priority, String content) {
 			this(audience != null || priority != null ? new Annotations(audience, priority) : null, content);
 		}
+
+		/**
+		 * @deprecated Only exists for backwards-compatibility purposes. Use
+		 * {@link TextContent#annotations()} instead.
+		 */
+		public List<Role> audience() {
+			return annotations == null ? null : annotations.audience();
+		}
+
+		/**
+		 * @deprecated Only exists for backwards-compatibility purposes. Use
+		 * {@link TextContent#annotations()} instead.
+		 */
+		public Double priority() {
+			return annotations == null ? null : annotations.priority();
+		}
 	}
 
 	@JsonInclude(JsonInclude.Include.NON_ABSENT)
@@ -1307,6 +1320,22 @@ public record ImageContent( // @formatter:off
 		public ImageContent(List<Role> audience, Double priority, String data, String mimeType) {
 			this(audience != null || priority != null ? new Annotations(audience, priority) : null, data, mimeType);
 		}
+
+		/**
+		 * @deprecated Only exists for backwards-compatibility purposes. Use
+		 * {@link ImageContent#annotations()} instead.
+		 */
+		public List<Role> audience() {
+			return annotations == null ? null : annotations.audience();
+		}
+
+		/**
+		 * @deprecated Only exists for backwards-compatibility purposes. Use
+		 * {@link ImageContent#annotations()} instead.
+		 */
+		public Double priority() {
+			return annotations == null ? null : annotations.priority();
+		}
 	}
 
 	@JsonInclude(JsonInclude.Include.NON_ABSENT)
@@ -1323,6 +1352,22 @@ public record EmbeddedResource( // @formatter:off
 		public EmbeddedResource(List<Role> audience, Double priority, ResourceContents resource) {
 			this(audience != null || priority != null ? new Annotations(audience, priority) : null, resource);
 		}
+
+		/**
+		 * @deprecated Only exists for backwards-compatibility purposes. Use
+		 * {@link EmbeddedResource#annotations()} instead.
+		 */
+		public List<Role> audience() {
+			return annotations == null ? null : annotations.audience();
+		}
+
+		/**
+		 * @deprecated Only exists for backwards-compatibility purposes. Use
+		 * {@link EmbeddedResource#annotations()} instead.
+		 */
+		public Double priority() {
+			return annotations == null ? null : annotations.priority();
+		}
 	}
 
 	// ---------------------------