v0.351.0 (unreleased): old -rc controller images and old infra images are deleted (decision 56 amended, decision 285)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0159rPz1ZhFKsS53msqPYxtS

CONTEXT.md

@@ -1,5 +1,11 @@
 # CONTEXT.md — Project Memory
 
+> **2026-11-09 (attended) — v0.351.0 in code, not released.** Operator's word 2026-11-09 („go with A"): decision 56 amended
+> (an old `-rc` controller image is deleted like an old release) and decision 285 (pinned infra images keep the pin + the
+> previous pin). Measured cause: demo-hp's whole-guest local copy refused for space (felhom.eu R-548); 3.5 GB of its 27.5 GB
+> of images were these kinds. The bigger lever — the whole-guest copy carries every Docker image — is a design question
+> (felhom.eu register, filed the same day).
+
 > **2026-11-03 (day, attended) — v0.350.0 RELEASED, the global floor since 08:18 CET (MinAgent 0.158.1).** Image `sha256:9ee53908…` from `5c336d8`. Traefik v3.7.17 (GHSA-xv5x), R-1347, R-1348, R-1339, R-1351, R-1323. Golden 0.350.0 vouched 10:18:10 CET.
 >
 > **2026-10-29 (evening, attended) — v0.349.0 RELEASED, the global floor since 19:24 CET (MinAgent 0.158.1).** Image