Add searched_at timestamps to search results so cached entries are accurately tracked and preserved across merges. Expand the clear-search-cache command to also invalidate popular databases, model list, and the new result timestamp store. Frontend gains new cache-clearing methods and a full resolver cache reset for maintenance. The search panel and missing browser now show source result dates and toggle the search button between 'Search' and 'Search Again' when results already exist.
The previous commit introduced server-side persistence for API keys and
preferences via a model_resolver_settings.json file and POST/GET routes.
This change reverts that behavior, returning to localStorage-only storage
for settings, which is simpler and avoids persisting sensitive credentials
to disk. Also removes the now-unnecessary .gitignore entry.
Replace all link dialog terminology with resolver terminology
throughout the codebase, including module names, CSS classes,
IDs, JS variables, SVG gradient IDs, and log module names.
Remove the old web/linker/ tree and introduce the new web/resolver/
tree with parallel structure. Also replace core/linker.py with
core/resolver.py.
Dariusz L