Minimig 1.98itx — schematic-only board guide

Minimig-board-guide.pdf contains five A4 landscape pages in the established
SiDi128 drawing style, reflowed for A4. The matching PNG previews, vector SVGs,
individual PDFs and index.html use the same content. The native KiCad sheets
are in schematics/documentation/; the parent hierarchy controls their final
page numbers. They contain graphics, text and embedded images only.

Regenerate from the project root:
  python3 tools/board_documentation.py

Requirements: Python 3, Pillow, Inkscape, Poppler tools, and KiCad 10 pcbnew.
KICAD_PYTHON may specify a launcher; the default is kicad-python. Use
--reuse-data to reuse board-data.json only when both the source PCB hash and
geometry collector hash match. The generator and parser are self-contained
in this repository and do not require an AmiCube or SiDi checkout.

assets/top.png and assets/bottom.png are native assembled-board renders,
trimmed to their exact alpha extent, preserving protruding connectors and all
native render pixels. Transparent backgrounds and explicit 300 dpi metadata
are required. The calibrated PCB outline is placed at 85 × 85 mm (1:2),
independently of the image canvas. Regenerate
these after physical PCB/model changes. source-facts.json records the initial
hardware research; manifest.json identifies the actual generator input hashes.
The assembly reference plan uses native footprint/pad/Fab/outline geometry.
Routing details preserve native curves using sampled PCB_ARC center geometry.

The generator writes only these documentation outputs and the five standalone
documentation sheets. It does not edit the root schematic, hierarchy links,
PCB, project settings, design rules or library tables. No PCB-editor
documentation layers or drawings are added.

Validation performed: all five colour PDF pages are A4 and have their expected
titles; every native appendix sheet has no electrical objects; protected CAD
hashes remain unchanged during generation. All 33 native sheets export successfully with KiCad 10.0.7; the
five colour pages and native appendix were visually inspected. Electrical-rule and manufacturing sign-off are outside this guide.
