Backend:
- Move SHA256 normalization logic from path_utils._normalize_header_sha256
into core/type_utils.normalize_sha256, adding support for 0x-prefixed
hashes and unifying the normalization path used by
extract_safetensors_header_sha256.
- Add tests for the 0x prefix normalization cases.
Frontend:
- Introduce copyTextWithFeedback in web/resolver/utils/html_utils.js
as a shared clipboard helper with configurable feedback text, CSS class,
and duration, replacing repeated inline clipboard copy logic in
globals.js, model_info_methods.js, and the notification utility.
- Centralize showNotification on ResolverManagerDialog and remove the
duplicate implementation from missingBrowserMethods.
- Replace local const localStorage = safeStorage aliases in
model_info_methods.js, missing_browser_methods.js, and
options_methods.js with direct safeStorage usage.