chore(scripts): delete retnode_poller.py

[Babissimo]

backend/scripts/retnode_poller.py polled a node's blah2 HTTP API and fed the frames into the tracker over TCP :3012, doing by hand what services/blah2_bridge.py did from a config file. Its own docstring called it "an interim approach until nodes connect directly via mTLS". Nodes now connect over the v1 HTTP API, and the bridge it mirrored went in #340.

Ticket: 86cb7v7hd

Nothing imports it and nothing invokes it: no crontab entry, no systemd unit, no compose service, no deploy script. It was deliberately left out of #340 because it is manual and tracked separately.

The scripts/* entries in backend/pyproject.toml (coverage omit, ruff per-file-ignores) stay as they are — they are globs covering the other scripts, which remain.

pre-commit run --all-files passes all five hooks.

🤖 Generated with Claude Code

[claude]

Claude finished @Babissimo's task in 1m 11s —— View job

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Code Review: PR #344 — chore(scripts): delete retnode_poller.py

• Gather context (PR body, diff, CLAUDE.md)
• Run code review on the deletion
• Post findings

Result: No issues found.

This is a clean, self-contained deletion of backend/scripts/retnode_poller.py (524 lines removed, nothing else touched):

• No remaining references — nothing imports it, no crontab/systemd/compose/deploy entry invokes it.
• backend/scripts/* globs in backend/pyproject.toml (coverage omit, ruff per-file-ignores) correctly remain untouched, since they cover the other scripts that still exist.
• Not part of the generated node API contract surface (contracts/nodes-v1.openapi.yaml per CLAUDE.md) — it never touched /v1/nodes routes or backend/services/node_config.py, so no contract regen is needed.
• One dated design-note doc still mentions the script by name, but that's a historical record, not living documentation — not worth flagging as a defect.

No functional, security, or maintainability concerns. Good to merge as-is.