Add port labels, modernize patch panels, add a real PNG preview

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- export_topology.py: edges now carry the exact port name on both ends
  (pulled directly from Cable/CableTermination, not inferred from the
  trace chain), so the diagram can label each connector.
- generate_drawio.py: patch panels are now a small rack-unit shape
  (header strip + port ticks, parented to the panel body so they move
  together) instead of a plain box; connectors show 'porta <-> portb'
  and no longer carry a directional arrowhead (these are physical
  cables, not directed links); switches keep the network-switch icon.
- render_png.js + render_host.html: headless Puppeteer driver for
  embed.diagrams.net's postMessage export protocol -- an actual
  render of the .drawio file, not an approximation. Field-Switch-
  Topology.png is the committed output, for anyone who wants a look
  without opening draw.io.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NM3nivbufxEWiKKmatEtEe

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This commit is contained in:

dcstephenson

2026-09-15 13:03:18 -05:00

parent d275b7e821

commit b6151b7de5

8 changed files with 185 additions and 48 deletions

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topology/topo_full.json

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