fix(review): re-unbreak /review slash command poisoned by PR #226 regression

PR #226 (`fix(ci-runner): filter CI polling by run URL, not workflow name`)
reintroduced the exact poisoned-text regression that PR #234 fixed. Its diff
on plugins/tend-ci-runner/skills/review/SKILL.md and
plugins/tend-ci-runner/skills/running-in-ci/SKILL.md reverted the CI-polling
comment from the PR #234 wording back to the pre-#234 wording containing
`` `if \!` ``, which the slash-command preprocessor scans and exec's as bash.

Since #226 merged at 2026-04-11 15:01:22 UTC, every `/review` invocation has
failed identically with the 5-line trace: queue/dequeue, command-caveat,
command-name, local-command-stderr, then nothing. Three tend-review runs in
this hour's window (PRs #240, #241, #242) all produced that exact trace and
posted zero reviews.

Rephrase the CI-polling comment in both files to avoid any `\!` adjacent to a
backtick. The guidance is unchanged. Matches the wording that PR #234 already
merged successfully — this is a straight restoration of that fix.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: continuous-bot

plugins/tend-ci-runner/skills/review/SKILL.md

@@ -293,9 +293,10 @@ the job name (`review`), which does not match `$GITHUB_WORKFLOW` (`tend-review`)
 
 ```bash
 # Run with Bash tool's run_in_background: true.
-# Use `||` rather than `if !` — the Bash tool escapes `!` as `\!`, which
-# prevents bash from recognizing the pipeline-negation reserved word and
-# leaves the loop stuck until the 10-minute timeout.
+# Use `||` rather than `if`-based negation. The Bash tool escapes the
+# exclamation mark to a literal backslash-exclamation, which prevents bash
+# from recognizing the pipeline-negation reserved word and leaves the loop
+# stuck until the 10-minute timeout.
 for i in $(seq 1 10); do
   sleep 60
   gh pr checks <number> --required 2>&1 \

plugins/tend-ci-runner/skills/running-in-ci/SKILL.md

@@ -144,9 +144,10 @@ background task completes you will be notified — check the result and take any
 # show as "pending" since it IS the running job. Watching yourself deadlocks.
 # Match on the run URL, not the check name: `gh pr checks` shows the job name
 # (e.g. "review"), which does not match $GITHUB_WORKFLOW ("tend-review").
-# Use `||` rather than `if !` — the Bash tool escapes `!` as `\!`, which
-# prevents bash from recognizing the pipeline-negation reserved word and
-# leaves the loop stuck until the 10-minute timeout.
+# Use `||` rather than `if`-based negation. The Bash tool escapes the
+# exclamation mark to a literal backslash-exclamation, which prevents bash
+# from recognizing the pipeline-negation reserved word and leaves the loop
+# stuck until the 10-minute timeout.
 for i in $(seq 1 10); do
   sleep 60
   gh pr checks <number> --required 2>&1 | grep -v "/runs/$GITHUB_RUN_ID/" | grep -q 'pending\|queued\|in_progress' || {