fix(hub): a reconnect re-reads the index, not just the handshake

2026-09-19T15:13:17Z

_reconnectLoop re-did the handshake and nothing else, so a page kept whatever it last saw until someone reloaded it. That is invisible until the node restarts: it rebuilds its index from index_cache.db, which holds no enrichment, and Music is the one app whose enrichment is persisted nowhere — for the length of the re-read pass it serves tracks with no artist, and the album grid drew nothing. onReconnected was one slot the video player took on open and cleared on close; it is a listener set now, and carries the fresh ack. docs/MESHBAY_DESIGN.md §15.3 records the two defects found alongside and not fixed here. Co-Authored-By: Claude Opus 5

meshbay.git/packages/meshbay-hub/tests/test_reconnect_refresh.py, branch 0.15

fix(hub): a reconnect re-reads the index, not just the handshake