1. routes.py: hoist a single case-folded path helper (_norm/_within_ci/_equal_ci)
used for ALL deny + carve-out comparisons (consistent macOS/Windows safety).
2. routes.py: split the deny into (a) dir-based denies that ALWAYS fire (even
inside the active workspace — so a workspace overlapping a state dir cannot
expose sessions/memories), and (b) filename denies relaxed only by the
carve-out. Fix the over-block: a workspace that is a proper DESCENDANT of a
Hermes root (e.g. STATE_DIR/workspace) is a legit project workspace and keeps
the carve-out; only a root-itself / ancestor / $HOME / profiles / state-subdir
workspace disables it.
3. ui.js: move the bare file:// media-stash pass after the raw-<pre> stash too,
so file:// inside a raw <pre> block stays literal (not just fenced/inline code).
4fa051ea14
