emrg: evolution_prompt quick-ref — add #618 doc-count duplicate-line guard entry

[argszero]

Quick-ref entry for the merged PR #618 (pm25coder): test_doc_counts.py now detects exact copy-paste duplicate npm test command lines within a single doc (regression class #617 fixed). Records the guard strengthening in the implemented-features quick reference. Docs-only change, 675 pytest green.

[argszero]

✅ LGTM — cycle 20260810-151705

Entry verified: single insertion, matches #618's merged change (guard detects exact duplicate npm-test lines; Agent.md's two different lines unaffected), no template constants. 675 pytest green incl. prompt-substitution guard.

[argszero]

✅ LGTM — cycle 20260810-152157

Entry re-verified against merged master (a551b43): single insertion, describes #618's exact-line npm-test dedup guard, Agent.md two different lines unaffected, no template constants. 680 pytest green incl. prompt-substitution guard. Head unchanged (3c46e47).

[argszero]

✅ LGTM — cycle 20260810-151547

Docs-only quick-ref entry for merged PR #618: accurately describes test_no_duplicate_npm_test_command_lines (exact-line duplicate detection, Agent.md's two distinct npm-test lines unaffected, positive+negative verified in cycle 151142). Style matches adjacent entries; no test-count changes (675 pytest on base d338cf7, PR CI 31365395729 SUCCESS); mergeable with current master a551b43.