docs: archive 0356 + 0477, record 0474 release state

[stkrolikiewicz]

Summary

• Archive 0356 (LP snapshot FINAL): all four PRs (fix(0356): deterministic final lp snapshot per (pool, ledger) #318 perf(0356): drop FINAL on LP snapshot reads #335 perf(lore-0356): LP-detail — seek ledgers by one sequence, equi-join the snapshot #347 perf(lore-0356): LP-chart — bound the upper ledger seek both ways #349) merged and on prod since mid-July — closing entry records the measured numbers and the 50M/mo load-test verdict in a new ## Outcome section; the table-wide pre-fix(0356): deterministic final lp snapshot per (pool, ledger) #318 duplicate cleanup stays explicitly deferred (defused by LIMIT 1 BY read guards).
• Archive 0477 (prices_writer monitoring grants): grants live on prod (SHOW GRANTS, 08-12), byte-identical mirror feat(0477): prices_writer monitoring grants (system.mutations + view_refreshes) #399 released in release: LP per-operation amounts (lore-0279) + prices_writer grants (lore-0477) #402; the one open AC — owner-side verification under prices credentials — is tracked on the prices side from here (0445-precedent explicit-decision archive).
• 0474 (Inferara mark) stays active, history entry only: merged in feat(0474): Inferara mark in Code-tab attribution #394 / riding release release: LP per-operation amounts (lore-0279) + prices_writer grants (lore-0477) #402, but the prod SPA still serves the pre-feat(0474): Inferara mark in Code-tab attribution #394 bundle (ContractDetailPage chunk has the attribution line, no #810F0C mark fill — checked 08-13). Archives at deploy, per repo convention.

Closure pass before the prices-api handoff. Merge promptly — the two lore/1-tasks/ renames are the collision class the 0445 history entry warns about.