fix: add CV Page 1 rule — first bullet must be 2L

A 3L first bullet in the first experience position overflows page 1,
wasting prime real estate. Updated resume_reference.md (Page Fill
Budgets), critical_rules.md (Budget Reminder), cv_template.tex
(comment block), and /make-resume SKILL.md (Phase 1 checklist).

Co-Authored-By: Akhil Peeketi <akhil@lanl.gov>

.claude/skills/make-resume/SKILL.md

@@ -146,6 +146,7 @@ Proceeding without confirmation misaligns the entire resume and requires full re
 - Remaining budget slots and what could fill them
 - Forced exclusions per provenance flags
 - Focus directive impact (what changed vs Priority Matrix defaults)
+- CV: confirm first bullet of first experience is 2L (page 1 rule)
 
 **Update session file** — write Bullet Plan tables. Status: `Phase 1: DONE (N bullets confirmed)`