List and query NFS/SMB file shares in the active scope

Returns the managed file-share inventory (NFS for Linux/Unix clients, SMB for Windows/Active Directory clients) for the active tenant/subscription/project scope, loaded on the the File shares page route. This single operation covers BOTH the plain route-load list (storage.file_share.list) and the search/filter/sort/paginate behavior (storage.file_share.search_filter_sort): both UI actions hit the same GET on this collection. Free-text q matches the share name; the protocol filter (the All / NFS / SMB counter pills) AND-combines with it. Sortable columns are name, provisionedGb and createdAt. Each row carries the full read model the table renders: name, description, protocol + protocolVersion, status, tier, provisioned/used capacity, IOPS, throughput, encryption, mount path/targets, snapshots, access rules, AD domain and the per-GB monthly price in hundredths of the currency unit. Validation: scopeId must resolve to a scope the caller can access (unknown or soft-deleted → 404 NOT_FOUND); protocol must be one of NFS|SMB; sort one of name|provisionedGb|createdAt; page ≥ 1 and pageSize within server bounds — any malformed filter/sort/pagination value → 422 VALIDATION_ERROR. RBAC: any scope role (owner|admin|contributor|reader|billing) may read. Async & state: Synchronous read; no state change. Share lifecycle transitions (CREATING→AVAILABLE, UPDATING→AVAILABLE, →ERROR) arrive as resource.updated SSE frames with kind "storage.file_share", not via this call. Errors: 401 missing/expired session; 403 authenticated but no role on the scope; 404 unknown scopeId; 422 malformed query parameter; 500 unexpected backend failure. Idempotency/Concurrency: Safe, cacheable; no idempotency key required. Repeated identical requests against the same read-model snapshot return identical pages.