Prune stale docs and update .hermes content

Delete a large set of outdated documentation (many files under docs/ and .hermes/plans/, including audits, design, prd, technical, planning, assets, and todos). Update and consolidate .hermes content: refresh shared-memory pages (decision-log, development-workflow, document-map, pitfalls, project-overview, team-conventions) and several skills/references under .hermes/skills. Also modify AGENTS.md, README.md, UI_CODING_STANDARD.md, docs/README.md and .encoding-check-ignore. Purpose: clean up stale planning/audit material and keep current hermes documentation and related top-level docs in sync.

src/components/match3d-result/Match3DResultView.tsx

@@ -555,6 +555,7 @@ function getMatch3DGeneratedItemAssetPersistenceSignature(
   return [
     asset.itemId.trim(),
     asset.itemName.trim(),
+    asset.itemSize?.trim() ?? '',
     asset.imageSrc?.trim() ?? '',
     asset.imageObjectKey?.trim() ?? '',
     ...(asset.imageViews ?? []).flatMap((view) => [
@@ -623,6 +624,7 @@ function mergeMatch3DGeneratedItemAsset(
   return {
     ...base,
     itemName: override.itemName.trim() || base.itemName,
+    itemSize: override.itemSize ?? base.itemSize ?? null,
     imageSrc: override.imageSrc?.trim()
       ? override.imageSrc
       : (base.imageSrc ?? null),