Secrets-005: AddIfNotRooted now uses Path.IsPathFullyQualified, so Windows drive-relative
(C:secrets.db) and root-relative (\secrets.db) paths are rejected. AddIfUnderContentRoot refuses a
store if EITHER its spelled location (device prefix stripped, loopback admin share mapped to its
drive) OR its resolved location (symlinks/junctions followed, 8.3 names expanded on Windows) is
under the likewise-resolved content root. A store spelled through the content root stays refused
even if a link inside carries it elsewhere. UNC paths through other shares are compared as written.
Claude-Session: https://claude.ai/code/session_01GT67AEHd2Acv1YPwGfXEoV