fix(cinny-deploy): the call page's scripts are deployed again

#30 added `rsync --exclude assets/` to keep old app assets, but an
unanchored exclude matches every directory named assets, including
public/element-call/assets/. Each deploy then updated the call page's
index.html but not its hashed scripts, so after the lotus.28 deploy the
call page requested files that did not exist (66 x 404 from 00:05 on
2026-10-20 until the assets were copied in by hand).

The excludes are now anchored (/assets/, /public/element-call/assets/), and
both asset directories get the same treatment: copied without --delete,
pruned after 14 days, so an open call page keeps its scripts across a
deploy. config.json stays unanchored on purpose (the production call
config lives at public/element-call/config.json).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017PCb59uY3UKqDqt7B6hzd5

cinny/lotus_deploy.sh

@@ -164,9 +164,18 @@ echo "[$(date '+%Y-%m-%d %H:%M:%S')] Deploying to $WEBROOT..."
 # still holding an older index.html (or service-worker precache) asks for its
 # assets/index-<old hash>.js, and deleting them on every deploy broke the app
 # for those users until their cached shell expired. Prune after 14 days.
-rsync -a --delete --exclude config.json --exclude assets/ dist/ "$WEBROOT/"
-rsync -a dist/assets/ "$WEBROOT/assets/"
-find "$WEBROOT/assets" -type f -mtime +14 -delete
+# The asset excludes are ANCHORED (leading /): an unanchored `assets/` also
+# matched public/element-call/assets/, so the call page's index.html was
+# updated while its hashed scripts never were, and calls failed to load.
+# config.json stays unanchored on purpose: public/element-call/config.json is
+# the production call config too.
+rsync -a --delete --exclude config.json \
+    --exclude /assets/ --exclude /public/element-call/assets/ dist/ "$WEBROOT/"
+for dir in assets public/element-call/assets; do
+    mkdir -p "$WEBROOT/$dir"
+    rsync -a "dist/$dir/" "$WEBROOT/$dir/"
+    find "$WEBROOT/$dir" -type f -mtime +14 -delete
+done
 
 echo "[$(date '+%Y-%m-%d %H:%M:%S')] ===== Deploy complete ($VITE_APP_VERSION) ====="