docs: correct claims left stale by today's apm-only commits

A five-agent review of today's seven commits found no executable
regressions and no dangling references, but a set of documents still
asserting, in present tense, machinery that ADR-0024 and its commits
removed. This corrects them in place, keeping the original text as the
historical record wherever the repo's amendment convention applies.

LESSONS.md: the 2026-06-21 entry prescribed a `claude plugin validate`
sweep that now fails on every plugin, so it is marked superseded with
the surviving gates named. The 2026-08-09 entry gained a recurrence
note: today's manifest deletion broke apm's MCP propagation exactly as
that lesson describes, and its prescribed repo-local grep could not
have caught it, because `plugin_parser.py` ships in the apm toolchain
installed outside this repository.

ADR-0019, ADR-0011 and ADR-0021: amendments extended to passages the
earlier correction passes stepped over -- a dead native-consumer guard,
Consequences bullets still calling for a `plugins/gitea/.mcp.json` that
must not be recreated, and a drift-gate list naming a deleted script.
ADR-0021's list is down to one gate, not two: `apm audit --ci` never
read `description` and was never a drift gate.

architecture.md and enrichments.md: the self-containment constraint is
restated on its live source, the agentskills.io APM package-mode spec,
rather than on Claude Code's plugin cache-install, which ADR-0024
consequence 6 pins as a superseded rationale. releasing.md's pointer to
the deleted sync script is rewritten as history.

tests/run-bats.sh and scripts/lib/batch-run.sh: comment-only. The
`.claude/skills/` exclusion comment claimed a duplication that is not
live yet; apm does not strip `tests/`, and the deployed tree is empty
of them only because the lockfile still resolves the six dependencies
to a pre-ADR-0024 commit carrying the flat mirror. The exclusion is
correct but forward-looking, and now says so.

SIMPLIFICATION-AUDIT.md: reconciled against what the commits actually
did. Two closed findings recorded conclusions that ADR-0024 reversed
hours later; findings 1, 3, 31 and 35 carried prescriptions voided the
same day; finding 28 is now recorded as having moved backwards, with
docs/adr/ measured at +336 lines over the day. The section 1 headline
table is re-measured at a6434e0 and labelled with its basis. The
ADR-0012 contradiction between finding 2b and section 8 is resolved in
2b's favour after reading the ADR: only finding 24 is governed by it.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YR2CjVumUbEGWcMikcoXBD

docs/adr/0019-session-start-hook-keeps-the-apm-install-current.md

@@ -158,6 +158,17 @@ all. The script therefore exits silently when there is no `apm.lock.yaml` in the
 which is what makes it inert in a repo that does not consume packages through apm. Copilot CLI sees
 no hook at all, for the reasons already documented in `plugins/kyberforge/docs/hooks.md`.
 
+> **Amendment (2026-09-14) — both halves of that paragraph are gone; the guard is kept on other
+> grounds.** There is no `hooks/hooks.json` to auto-discover: `718c79a` deleted
+> `plugins/kyberforge/hooks/` with the rest of the flat mirror, and the only hooks manifest left in
+> the tree is `plugins/kyberforge/.apm/hooks/hooks.json`, which apm reads and a convention scan of
+> the package root never sees. And there are no native consumers to protect: ADR-0024 ended
+> `claude plugin install` support outright. The `apm.lock.yaml` guard itself stays, for the reason
+> that survives both — kyberforge ships to any apm consumer, and in a working directory with no
+> lockfile there is nothing for `apm update` to refresh, so exiting silently is the correct
+> behaviour rather than a defensive measure aimed at a second installer. The Copilot CLI sentence is
+> unaffected.
+
 **`scripts/git-hooks/` is now empty.** `post-push` and `test-post-push.sh` are deleted.
 `install.sh`'s copy block is generic and is kept; `test-git-hooks-install.sh` now synthesizes its
 own fixture hook instead of depending on a real one existing, so the mechanism stays tested and can