copy(contracts): 设置校验、事件说明与 API 摘要统一术语

恢复水位 / 硬阈值 → 恢复线 / 暂停线;库根、哨兵、Feed、快照、建档、纳管等按术语表改。

Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Cxwgnn2pbzQ7rXv3rq7fei

packages/contracts/src/api/content.ts

@@ -164,7 +164,7 @@ export const contentApi = {
   // ── 文件(只读;写入只经整理/对账流程,不开放直接改) ──
   mediaAssets: crud(
     "/media-assets",
-    "资产",
+    "文件",
     {
       row: assets.MediaAsset,
       filters: { mediaEntityId: Id.optional(), status: assets.AssetStatus.optional() },
@@ -173,7 +173,7 @@ export const contentApi = {
   ),
   assetUnitCoverage: crud(
     "/asset-unit-coverage",
-    "资产覆盖",
+    "文件覆盖",
     {
       row: assets.AssetUnitCoverage,
       filters: { mediaAssetId: Id.optional(), contentUnitId: Id.optional() },
@@ -182,7 +182,7 @@ export const contentApi = {
   ),
   assetLocations: crud(
     "/asset-locations",
-    "资产位置",
+    "文件位置",
     {
       row: assets.AssetLocation,
       filters: { mediaAssetId: Id.optional(), status: assets.LocationStatus.optional() },