feat: keep what was loaded between runs, and start where you left off

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

README.md

@@ -90,9 +90,11 @@ use most:
 
 ## Privacy
 
-lazysecrets never stores, caches or sends your secret values. It talks only
-to the services you use it with, and collects no usage data. The one call
-of its own is a daily check for a new release on this server, which
+lazysecrets never stores, caches or sends your secret values. It keeps the
+names and metadata of what you've loaded in a cache file readable only by
+you, to show it at once next time (`cache: false` turns it off). It talks
+only to the services you use it with, and collects no usage data. The one
+call of its own is a daily check for a new release on this server, which
 `updateCheck: false` turns off.