Update getSessionMetadata to match final upstream PR #899 state

Agent-Logs-Url: https://github.com/github/copilot-sdk-java/sessions/1dcd7e77-9de7-4ada-81f4-2a0b425919fb

Co-authored-by: edburns <75821+edburns@users.noreply.github.com>

Author: Copilot

src/main/java/com/github/copilot/sdk/json/GetSessionMetadataResponse.java

@@ -15,7 +15,7 @@
  *
  * @see com.github.copilot.sdk.CopilotClient#getSessionMetadata(String)
  * @see SessionMetadata
- * @since 1.0.0
+ * @since 1.2.0
  */
 @JsonInclude(JsonInclude.Include.NON_NULL)
 public record GetSessionMetadataResponse(

src/main/java/com/github/copilot/sdk/json/SessionMetadata.java

@@ -29,6 +29,7 @@
  * }</pre>
  *
  * @see com.github.copilot.sdk.CopilotClient#listSessions()
+ * @see com.github.copilot.sdk.CopilotClient#getSessionMetadata(String)
  * @see com.github.copilot.sdk.CopilotClient#resumeSession(String,
  *      ResumeSessionConfig)
  * @since 1.0.0

src/test/java/com/github/copilot/sdk/CopilotSessionTest.java

@@ -698,12 +698,12 @@ void testShouldDeleteSession() throws Exception {
     /**
      * Verifies that session metadata can be retrieved by ID.
      * <p>
-     * TODO: Re-enable once test harness CAPI proxy supports this test's session
-     * lifecycle.
+     * Disabled until {@code .lastmerge} is advanced past upstream PR #899 which
+     * adds the {@code should_get_session_metadata} snapshot.
      *
      * @see Snapshot: session/should_get_session_metadata
      */
-    @Disabled("Needs test harness CAPI proxy support")
+    @Disabled("Snapshot not available until .lastmerge is advanced past upstream PR #899")
     @Test
     void testShouldGetSessionMetadata() throws Exception {
         ctx.configureForTest("session", "should_get_session_metadata");