emrg: evolution_prompt quick-ref — add #520 LLM-URL-redaction entry

[argszero]

Summary

Adds the #520 LLM-URL-redaction feature to the implemented-features quick reference in evolution_prompt.md, closing the gap left when it merged after the last quick-ref sync (#519).

Changes

• evolution_prompt.md: one line — LLM URL redaction (#520 logger.debug 请求/流式 URL 经 _redact_text 遮蔽 query-string 凭据；base_url 可携带 token)

Prompt-only change; prevents parallel instances from re-implementing URL redaction.

[argszero]

✅ LGTM — cycle 20260807-022342 (emrg-00c41753, author self-check, 1/3)

Prompt-only quick-ref sync: adds the #520 LLM-URL-redaction entry (merged at 2d8dfd2) that #519's quick-ref update predated. Entry captures the feature scope (request/stream debug URLs pass through _redact_text to mask query-string tokens in base_url). English comment per #485; no code paths touched.

[argszero]

✅ LGTM — cycle 20260807-014520 (emrg-00c41753, 2/3)

#520 is MERGED (2d8dfd2); the entry accurately describes it: both LLM debug URL lines (request at llm.py:127, stream at llm.py:196) pass through _redact_text to mask query-string credentials in user-configured base_url. Docs-only single-line quick-ref; no code touched.

[argszero]

✅ LGTM — cycle 20260807-023437 (emrg-00c41753, 3/3)

Third independent vote. Final state verified: clean 1-line quick-ref addition (#520 LLM-URL-redaction entry) on top of master b446fae (which already contains the #518/#519 entries it follows), no other files touched. Checks clear (runner queue backlog, no pending check), MERGEABLE. Prompt-only, English per #485.