fix(commands): close the promises the command templates could not keep

DEL B chunk `interview` (+ discover/status/cleanup/help). Fasit written before
the run predicted 8 defects and refuted 4 candidates; all 8 confirmed, all 4
refutations held, and three predictions turned out too narrow.

- M-BUG-36: `drift --list` reached the command as 0 bytes. drift-cli accepted
  --output-file but list mode ignored it, and the listing goes to stderr, which
  the command discards per ux-rules rule 2. Fixing the caller alone would not
  have helped.
- M-BUG-37: feature-gap's "Create backup" step ran fix-cli without --apply.
  Dry-run is the default, so no backup existed (backupId: null) while the
  command went on to edit config believing it could roll back.
- M-BUG-38: fix-cli told users to recover with scanners/rollback-cli.mjs, which
  does not exist. Dead reference in the one message read after a bad fix.
- M-BUG-21 fourth arm: five templates carried literal [--global]/[--full-machine]
  inside executable bash blocks. A bracketed placeholder does not start with a
  dash, so every scanner's arg loop takes it as the scan target.
- interview and analyze never said which session they act on; interview could
  rewind a finished session; cleanup interpolated an unvalidated id into rm -rf
  (an empty id deletes every session); status advertised a `resume` command that
  does not exist and documented an `all` argument it never parsed.

TDD: 9 red tests first, including a machine sweep for dead /config-audit
references and for bracketed flags in bash blocks. Suite 1432 -> 1441/0.
Frozen v5.0.0 snapshots untouched; --raw/--json contracts unchanged.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01UGvA1uUQn2hPBPMaCKK6x3

commands/cleanup.md

@@ -75,7 +75,13 @@ Manage and clean up accumulated config-audit sessions in `~/.claude/config-audit
    - Warn before deleting active sessions: "Session {id} is still active (phase: {phase}). Delete anyway?"
 
 6. **Execute cleanup**:
-   - For each session to delete: `rm -rf ~/.claude/config-audit/sessions/{session-id}/`
+   - **Validate the id before it ever reaches `rm -rf`.** Each `{session-id}`
+     must match `^[0-9]{8}_[0-9]{6}$` (the id format `discover` generates) or be
+     an existing directory name read verbatim from the Glob in step 1. If an id
+     is empty or fails to match, **refuse to delete it**, report it, and continue
+     with the rest. An empty id expands the path to
+     `~/.claude/config-audit/sessions//`, which deletes *every* session.
+   - For each validated session: `rm -rf ~/.claude/config-audit/sessions/{session-id}/`
    - Track deleted count and freed space
 
 7. **Output summary**: