memory: move agent memory into repo (memory/), note in AGENTS.md

Persistent agent memories now live in memory/ in this repo; the Claude
auto-memory path is symlinked here so future memories land in the repo
and get committed like any other change.

memory/MEMORY.md

@@ -0,0 +1,11 @@
+# Memory index
+
+- [Orchestrator host: Hetzner](orchestrator-host-hetzner.md) — runs on Hetzner cpx22; rebuild cmd, loops-service bounce, git-identity gotcha
+- [Push commits to remote](push-commits-to-remote.md) — push to git.autonomic.zone right after every commit in this repo
+- [Regression canary cadence](regression-canary-cadence.md) — server E2E canaries run on polish/review/release, not every commit
+- [Recipe-mirrors public / org blocker](recipe-mirrors-public-org-blocker.md) — mirrors public but recipe-maintainers ORG is private → live PR-STATUS column dark until operator flips org public
+- [abra chaos-deploy checkout gotcha](abra-chaos-deploy-checkout-gotcha.md) — `abra app new` moves recipe checkout to release tag; checkout PR branch after, or chaos deploys wrong tree
+- [Shared recipe-checkout race](shared-recipe-checkout-race.md) — never git-checkout ~/.abra/recipes/<recipe> on cc-ci while its CI build runs; harness deploys from that tree
+- [immich pgvecto.rs DROP DATABASE panic](immich-pgvectors-drop-database-panic.md) — DROP DATABASE crashes immich's postgres image; use pg_dump --clean --if-exists + search_path rewrite
+- [Drone sqlite log extraction](drone-sqlite-log-extraction.md) — copy /data/database.sqlite from drone container, query builds→stages→steps→logs for full step output
+- [plausible upgrade-base trap](plausible-upgrade-base-trap.md) — CI REDs from published 3.0.0 base (no x86_64 arch → 404 → silent exit 1), not the PR; needs UPGRADE_BASE_VERSION=3.0.1+v2.0.0 in cc-ci tests