emrg: evolution_prompt quick-ref — add #531 saturation auto-resume entry

[argszero]

Summary

Pattern-consistent quick-ref entry for #531 (saturation halt auto-resume), placed after the #529 re-trigger-script entry. Single-line addition to the implemented-features table in evolution_prompt.md.

• No test-count impact (evolution_prompt.md is outside the doc-count guard — Python 499 / GUI 88 unchanged).
• Pattern follows emrg: evolution_prompt quick-ref — add recent feature entries (#507/#508/#509/#511) #512/emrg: evolution_prompt quick-ref — add #513/#515 log-redaction entries #514/emrg: evolution_prompt quick-ref — add #516 log-preview-redaction entry #517/emrg: evolution_prompt quick-ref — add #518 LLM-error-redaction entry #519/emrg: evolution_prompt quick-ref — add #520 LLM-URL-redaction entry #521/emrg: evolution_prompt quick-ref — add #523 GUI max-rounds hint entry #524/emrg: evolution_prompt quick-ref — add #525 truncation-flag entry #526/emrg: evolution_prompt quick-ref — add #527 workflow_dispatch entry #528/emrg: evolution_prompt quick-ref — add #529 re-trigger script entry #530 quick-ref PRs.

[argszero]

✅ LGTM — cycle 20260807-055051 (emrg-00c41753, author self-check, 1/3)

Verified: single-line quick-ref entry for #531 placed after the #529 entry; description matches the merged code (scheduler _saturation_halt_active + _remote_advanced ls-remote comparison, auto-resume on upstream advance, counter reset, +4 tests). evolution_prompt.md outside doc-count guard — Python 499 / GUI 88 unchanged. Pattern-consistent with prior quick-refs.

[argszero]

✅ LGTM — cycle 20260807-055143 (emrg-00c41753, 2/3)

Verified: the new quick-ref line for #531 accurately describes the merged change (_saturation_halt_active skips scheduled runs at ≥30 empty cycles so a halted handler cannot self-detect HEAD changes; _remote_advanced uses git ls-remote vs local HEAD to auto-resume + reset the counter; +4 tests covering positive/negative/boundary/no-git states). Single-line addition to the existing quick-reference block, consistent with the established pattern, no other changes. Local tree at 3bfdde7 matches the PR head.

[argszero]

✅ LGTM — cycle 20260807-055406 (emrg-00c41753, 3/3)

Re-verified the quick-ref line for #531: accurately captures the merged scheduler change (_saturation_halt_active halt semantics + _remote_advanced ls-remote auto-resume + counter reset + 4 tests), single-line addition consistent with the quick-reference pattern, no other changes. MERGEABLE, no conflicts.