Knowit 61fd3ff072 tools/epro2/kicad: fix two --all crashes found running the other 4 Pro projects ...

Running the new --all on the remaining 4 Pro projects (X86 motherboard,
220V power supply, Taishan Pi, Liangshan Pi) surfaced two crash modes
not covered by ESP-VoCat:

1. Odd inner-layer count → KiCad rejects the file at load with
   "3 is not a valid layer count". The 220V power boards have one
   used inner SIGNAL layer (3 copper total: F.Cu / In1.Cu / B.Cu),
   but KiCad requires an even copper count. Fixed pcb_writer to pad
   with one empty inner layer when the inner count is odd, so the
   total stays even (2, 4, 6, ...).

2. Two BOARDs sharing the same META.title — twin "显示板" boards in
   the 220V power project — landed in the same project directory
   and the second silently overwrote the first's .kicad_sch /
   .kicad_pcb / .kicad_pro. Fixed --all to detect title collisions
   and suffix every colliding basename with the BOARD uuid prefix
   (so both '显示板' boards become '显示板_52e8cc76' and
   '显示板_55d32906' rather than one quietly winning).

71 → 73 unit tests pass (test_odd_inner_signal_count_padded_to_even_total
+ test_duplicate_board_titles_get_distinct_basenames).

Tangentially noted while running this: Taishan Pi and Liangshan Pi are
Pro 2.x JSON, not EPRO2 streams — our replay layer reads the files but
doesn't decode docType, so SCH/PCB grouping returns nothing. Pro 2.x
needs a separate writer; out of scope for this commit.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-04-29 00:48:46 +08:00

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