buenosairesam 160ee31b8c docgen: drop the superseded first pass, port the style harvester ...

The IR supersedes both intermediate designs (requirements D6, D7):
station/tools/docgen and the graph model that briefly lived in graphgen.
Shipping them beside atlas2/docgen would mean two graph models, which is the
thing the architecture argues against.

Carried across rather than lost:
  - style/extract.py and tokens.py, the offline theme harvester (R31). Rewritten
    to emit a *theme* — a slot-to-hex binding — rather than a whole style file,
    since what harvesting recovers is which colour a slot should be, not what a
    kind should look like.
  - graphgen/README.md, rewritten for what graphgen actually is now: the
    schema explorer. It fixes the blank station-index entry at run.py:304.

Two bugs found while doing it:
  - Canvas and ink are the two lightness extremes, not the two most common
    values. In a Graphviz SVG every label carries a fill, so the ink outnumbers
    the canvas 87 to 43 and the old rule produced a theme whose text was
    invisible against its own background.
  - A name defined in both branches of an if/else produced a duplicate id, which
    failed validation on docgen's own source. Disambiguated by line.

2026-09-13 21:41:29 -03:00

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