Bug: regex '^([A-Za-z]+)(\d+)排(\d)座$' with $m[3] misparsed seat labels
like "A排10座" → colNum=1 (wrong). Fixed to '^([A-Za-z]+)排(\d+)座$' with $m[2].
Also clarified spec_base_id_map docblock: frontend expects flat integer,
not nested object.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Bug 1: SeatSkuService.php:381 - regex has syntax error
'/^([A-Za-z]+)(\d+)排(\d+)座$/' → '/^([A-Za-z]+)(\d+)排(\d)座$/'
The third capture group only needs single digit (col number 1-9).
Bug 2: ticket_detail.html:416 - frontend accesses specBaseIdMap as object
but PHP returns flat integer: specBaseIdMap['A_1'] = 2001 (int), not {spec_base_id: 2001}.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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