fix(ci): co-locate placeholder sentinels with the data they guard

cv/main_example.tex's sentinel was [YOUR_NAME] - a header comment and
the pdftitle, neither of which /setup's documented personalization
touches, so CI reported the file clean while it carried a real name,
address, phone and email (the review proved this end to end; the file
is the one CV the gitignore deliberately allows to be committed). The
guard now checks the \name{} and \email{} data lines, and 01's sentinel
moves from the <!-- SETUP comment onto [YOUR_EMAIL]. New test simulates
the /setup edit and requires every checked CV sentinel to be destroyed
by it. Review finding F28 (2026-08-19).

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

.github/workflows/ci.yml

@@ -210,8 +210,9 @@ jobs:
             fi
           }
           check CLAUDE.md '\[YOUR_NAME\]'
-          check cv/main_example.tex '\[YOUR_NAME\]'
+          check cv/main_example.tex '\\name{\[First\]}{\[Last\]}'
+          check cv/main_example.tex '\\email{\[your\.email@example\.com\]}'
           check cover_letters/cover_example.tex '\[YOUR NAME\]'
-          check .claude/skills/job-application-assistant/01-candidate-profile.md '<!-- SETUP'
+          check .claude/skills/job-application-assistant/01-candidate-profile.md '\[YOUR_EMAIL\]'
           check .claude/skills/job-application-assistant/04-job-evaluation.md '\[YOUR_PRIMARY_SKILLS\]'
           exit $fail