fix(bat-api): 完成 issue #19 同机 live 联调

internal/api/release_index.go

@@ -106,7 +106,10 @@ func (idx *ReleaseIndex) Summary() ReleaseSummary {
 		EntryCount:      len(idx.Entries),
 		PresentCount:    present,
 		MissingCount:    len(idx.MissingOnDisk),
-		Ready:           idx.ResourceRoot != "" && present > 0,
+		// A release is distributable only when every manifest entry is present
+		// and has the expected size. Serving a partial release can leave clients
+		// with an apparently valid bootstrap and an unrecoverable download set.
+		Ready: idx.ResourceRoot != "" && len(idx.Entries) > 0 && present == len(idx.Entries),
 	}
 }