feat(resources): render anonymous volume names readably in the volume browser (#1429)

Anonymous Docker volumes carry a raw 64-character hex name, which is correct
data but unreadable in the volume browser crumb, sheet title, and table row.

Detect 64-hex names and show a short prefix (e.g. 079dfda49f2c…) in the table
cell and sheet title, with the full name available on hover and an "anonymous"
chip so the truncation is self-explanatory. The volume browser sheet adds a
band that keeps the full hash visible and copyable. Named volumes still display
in full. The name is passed verbatim to the API; only the rendered label changes.

frontend/src/lib/volumeName.ts

@@ -0,0 +1,25 @@
+// Helpers for rendering Docker volume names readably in the Resources Hub.
+//
+// A standard Docker anonymous volume name is exactly 64 lowercase hex characters
+// (the same shape as a SHA-256 digest). Named volumes are arbitrary strings.
+//
+// Note: a user who deliberately names a volume with 64 lowercase hex characters
+// is also treated as anonymous for display only. Nothing is lost: the full name
+// stays available via the title tooltip (and the copy button in the volume
+// browser sheet), and it is always passed verbatim to the API.
+
+const ANON_VOLUME_RE = /^[0-9a-f]{64}$/;
+
+/** True when the name looks like an anonymous Docker volume (64 lowercase hex chars). */
+export function isAnonymousVolumeName(name: string): boolean {
+  return ANON_VOLUME_RE.test(name);
+}
+
+/**
+ * A short, readable label for a volume name. Anonymous names are truncated to a
+ * 12-character prefix with an ellipsis (e.g. `079dfda49f2c…`); named volumes are
+ * returned verbatim so friendly names keep displaying in full.
+ */
+export function shortVolumeLabel(name: string): string {
+  return isAnonymousVolumeName(name) ? `${name.slice(0, 12)}…` : name;
+}