WG Checkpoint Restore: Add 2025 annual report

wg-checkpoint-restore/annual-report-2025.md

@@ -5,16 +5,14 @@
 
 1. What work did the WG do this year that should be highlighted?
 
-<!--
-   Some example items that might be worth highlighting:
-   - artifacts
-   - reports
-   - white papers
-   - work not tracked in KEPs
--->
+In 2025, the working group was established and held its first meeting in
+December. The working group set up all the usual infrastructure like mailing
+list, calendar, Slack channel, and Zoom meeting.
 
 2. Are there any areas and/or subprojects that your group needs help with (e.g. fewer than 2 active OWNERS)?
 
+As the working group just started its work, no help is needed so far.
+
 ## Operational
 
 Operational tasks in [wg-governance.md]:
@@ -23,11 +21,14 @@ Operational tasks in [wg-governance.md]:
 - [ ] WG leaders in [sigs.yaml] are accurate and active, and updated if needed
 - [ ] Meeting notes and recordings for 2025 are linked from [README.md] and updated/uploaded if needed
 - [ ] Updates provided to sponsoring SIGs in 2025
-      - [$sig-name](https://git.k8s.io/community/$sig-id/)
-        - links to email, meeting notes, slides, or recordings, etc
-      - [$sig-name](https://git.k8s.io/community/$sig-id/)
-        - links to email, meeting notes, slides, or recordings, etc
-      -
+      - [SIG Apps](https://git.k8s.io/community/sig-apps/)
+        - No updates yet (WG established in December 2025)
+      - [SIG Auth](https://git.k8s.io/community/sig-auth/)
+        - No updates yet (WG established in December 2025)
+      - [SIG Node](https://git.k8s.io/community/sig-node/)
+        - No updates yet (WG established in December 2025)
+      - [SIG Scheduling](https://git.k8s.io/community/sig-scheduling/)
+        - No updates yet (WG established in December 2025)
 
 [wg-governance.md]: https://git.k8s.io/community/committee-steering/governance/wg-governance.md
 [README.md]: https://git.k8s.io/community/wg-checkpoint-restore/README.md