feat(settings): rebuild destructive-command cover in autoMode, scope the classifier environment

`permissions.ask` gates nothing under `defaultMode: auto` (LRN-146,
verified live), so the ten rules that left the static tiers had no cover
left: rsync / kill -9 / killall / pkill out of deny, and python3 -c /
python -c / xargs / sed / cp / mv out of ask.

autoMode.soft_deny (7 rules) takes over what an explicit instruction
should be able to clear: writes outside the working directory,
rsync --delete, SIGKILL and kill-by-name, in-place edits spanning more
than one file, directory moves, and inline interpreters or xargs that
delete or write outside the cwd. Intent clears a soft block for the
current turn only, stated as a rule since no setting expresses it.

autoMode.hard_deny (3 rules) takes the classes no command pattern can
express: secret exfiltration, production deployment, and disarming the
guardrails. Adding a restriction stays allowed, removing one does not.

permissions.deny gains ten .env reader rules (sed awk cut tr sort uniq
diff od xxd strings). Six of those tools sat in permissions.allow, so
reading a .env through them triggered nothing.

autoMode.environment named another project, its FTP deploy target and its
customer data, inside the file link.sh:21 symlinks to
~/.claude/settings.json, where it reached every repo and contradicted
this one's Gitea remote. Rewritten machine-generic; the project facts
moved to that project's gitignored .claude/settings.local.json. All three
lists now open with "$defaults", which the original omitted, so the
built-in classifier entries are inherited rather than replaced.

doctor.sh check_automode backstops both defects. SETTINGS.md documents
the block and a tier-choice table. README no longer claims the ask tier
makes every mcp__magic__* call require a live confirmation.

CHANGELOG.md

@@ -17,6 +17,43 @@ Format follows [Keep a Changelog](https://keepachangelog.com/).
   lib (OS-support bump, submodule-update wrapper, cache report), sourced by
   `install-plugins.sh`, `update-all.sh` and `doctor.sh`, covered by
   `lib/tests/gstack-playwright.test.sh`.
+- **`doctor.sh` inspects the `autoMode` block**: warns when a classifier
+  list drops the built-in entries (no `"$defaults"`) and when the
+  user-scope `environment` names a git repo other than the config repo.
+  Neither defect is visible from the deny count, until now the only
+  permission signal `doctor.sh` had.
+- **`templates/settings/SETTINGS.md` documents `autoMode`**: the four
+  classifier lists, `$defaults` splice semantics, `classifyAllShell`, the
+  user-scope vs project-scope rule, and why `ask` is the wrong tier for a
+  destructive command under auto mode.
+
+### Changed
+- **The classifier, not `permissions.ask`, now guards destructive shell
+  work** (BDR-090). Ten rules left the static tiers: `rsync`, `kill -9`,
+  `killall`, `pkill` out of `deny`, and `python3 -c`, `python -c`,
+  `xargs`, `sed`, `cp`, `mv` out of `ask`. Under `defaultMode: auto` an
+  `ask` rule raises no prompt ([[LRN-146]]), so that tier was gating
+  nothing anyway. Cover is now `autoMode.soft_deny`, which the classifier
+  enforces and an explicit instruction clears: writes outside the working
+  directory, `rsync --delete`, SIGKILL and kill-by-name, in-place edits
+  spanning more than one file, directory moves, and inline interpreters
+  or `xargs` that delete or write outside the cwd. Intent clears a soft
+  block for the current turn only.
+- **`autoMode.hard_deny` added** for the three classes no command pattern
+  can express: secret exfiltration (a read and a send, separate steps,
+  possibly turns apart), production deployment (deploy scripts, lftp/FTP
+  pushes, any `prod` target), and disarming the guardrails (weakening a
+  deny list, `--no-verify`, removing the pre-commit hook,
+  `bypassPermissions`). Adding a restriction stays allowed; removing one
+  does not. No instruction clears these.
+
+### Security
+- **Ten secret-reader deny rules added**: `sed`, `awk`, `cut`, `tr`,
+  `sort`, `uniq`, `diff`, `od`, `xxd`, `strings` against `.env*`. Six of
+  those tools sat in `permissions.allow`, so reading a `.env` through
+  them triggered nothing. Same shape and same known gap as the existing
+  `Bash(grep * .env*)` family: a `cat .env | sed` pipe still slips past,
+  which is what the `hard_deny` exfiltration rule is there to catch.
 
 ### Fixed
 - **`make update` no longer drops the Playwright OS-support bump** — a
@@ -27,6 +64,21 @@ Format follows [Keep a Changelog](https://keepachangelog.com/).
   arm still fires. Two latent bugs travelled with the extracted code: the
   ostag capture exited 1 on every non-Ubuntu host and aborted its caller
   under inherited `errexit`, and the `bun` calls had no timeout.
+- **`autoMode.environment` no longer describes one project from the
+  user-scope file**: the block named a specific repo, its FTP deploy
+  target and its customer data, while `link.sh` symlinks this file to
+  `~/.claude/settings.json` where it reaches every project. The global
+  block now states machine-level facts only (self-hosted Gitea, gitflow
+  protection, `~/.claude/.env` as the single secret source, no CI), and
+  the project-specific facts moved to that project's gitignored
+  `.claude/settings.local.json`. Both lists now open with `"$defaults"`,
+  which the original omitted, so the built-in entries are inherited
+  rather than replaced.
+- `README.md` no longer claims the `ask` tier makes every `mcp__magic__*`
+  call "require a live confirmation and can never auto-execute". That
+  holds under `defaultMode: default`, not under this config's `auto`. The
+  paragraph now separates what is verified from what is not, and names
+  `deny` as the only tier the classifier cannot lift.
 
 ## [1.5.0] — 2026-09-13