Attach a file to the agent chat composer via DOM.setFileInputFiles.
--dry-run stages the attachment and verifies the preview chip without
sending; otherwise sends (optional --message caption) and verifies via
read-back. Supports the box console upload flow (v0.2).
Session: sidechat/box-console
New bin/netvm-registry.py parses NODES.md (node -> cdp_port); every
consumer reads from it instead of hardcoding:
- onboard-driver.py: CDP_PORTS dict -> registry lookup (new nodes work)
- muse-signin.py: hardcoded 9410 -> --node/--cdp-port args
- muse-chat-api.py: hardcoded ACCOUNTS -> registry-built
- agent-health.sh: hardcoded muse/pip blocks -> loop over all active
nodes (646 and opm now get health coverage too)
NODES.md: record opm node (9440).