Revert "stablelize this" - implementation notes should not be stabilized

This reverts commit 7980a34.

Signed-off-by: Felix Kronlage-Dammers <fkr@hazardous.org>

Author: fkr

Standards/scs-0121-w1-Availability-Zones-Standard.md

@@ -2,8 +2,7 @@
 title: "SCS Availability Zones: Implementation and Testing Notes"
 type: Supplement
 track: IaaS
-status: Stable
-stabilized_at: 2025-09-02
+status: Draft
 supplements:
   - scs-0121-v1-Availability-Zones-Standard.md
 ---