P12.OP6 (miroir-zc2.6): Session summary - ARM64 deferral confirmed

Verified documentation is complete. Bead remains open as placeholder per
acceptance criteria until ARM64 is a live deliverable (v1.x+).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

notes/miroir-zc2.6-session-summary.md

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+# P12.OP6 (miroir-zc2.6): ARM64 Support - Session Summary
+
+## Date
+2026-05-08
+
+## Status
+DEFERRED to v1.x+ - Bead remains open as placeholder
+
+## Work Completed (Previous Session)
+- Created `docs/arm64-support.md` with comprehensive ARM64 documentation
+- Created `notes/miroir-zc2.6.md` documenting deferral status and future requirements
+- Committed in 4ace219
+
+## This Session
+- Verified documentation is complete and accurate
+- Confirmed bead should remain open per acceptance criteria
+- ARM64 support will be implemented when K8s ARM node support is required
+
+## References
+- Plan §15 Open Problem #6
+- docs/arm64-support.md