release(v4.9.2): README rewritten against the code, README.ko.md in step - archive the review reports and bump the lockstep version

Review loop (--review-only, --all-reviewer, fact-checked against the
code): rounds 1-3 NOT PASS with factual corrections, round 4 (@62da805)
4/4 PASS. Documentation only.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VCgu9Fa9iT7TbJUSzdq4Ff

.agents/reports/reviewer-grok-01/report-2311b972.md

@@ -0,0 +1,15 @@
+# Review 2311b972 — test share and generate-env.sh
+
+Head `62da8056680fca939a2aff924037ed48b5f74afa` (tree `f549246ffbe2d5e58cb7e33c212a383cd429dce5`) is the one commit `62da805 docs(readme): round-3 review fixes (21063f28)` on base `ae2813773c973daedd2275cb55ad340a682c3fae`. Two files, `README.md` and `README.ko.md`, two lines each, +4/−4. `git diff --check` is clean. Snapshot porcelain empty. Control-plane main is still `2ccf43911cda78fd0655c3770eec90cd22ec2d1b`, porcelain empty.
+
+## The two sentences match
+
+`README.md:175` says every test gets a temporary job registry and audit-log directory, about a third also use the sandbox fixtures that set a temporary HOME, and fewer of those use a mock herdr. That is the count from the previous review of this same test tree: weighting the parametrize lists written out in the source, 573 of 1708 (34%) reach a temporary HOME and 196 of 1708 (11%) reach `mock_herdr`. The autouse fixture still points every test's registry and audit log at a temporary directory (`tests/conftest.py:170-186`). `README.ko.md:175` says the same fraction and the same split.
+
+`README.md:41` says `deploy/generate-env.sh` creates `.mam.env` from `.mam.env.example` when `.mam.env` is missing, and that `--force` overwrites it while keeping a `.mam.env.bak`. The script copies the example when the destination is absent (`deploy/generate-env.sh:54-64`). When the destination exists and `--force` is absent, it exits 0 without writing (`:54-57`). With `--force` and an existing file, it copies that file to `$DST.bak`, which is `.mam.env.bak`, and then copies the example over it (`:59-64`). `README.ko.md:41` says the same.
+
+The script was not executed. No herdr server was started. The suite was not run.
+
+User `~/.config/herdr/config.toml` mtime stayed `1784456394`.
+
+[VERDICT: PASS]