1.0.0

Initial release of Japanese Invoice Helper.

• invoice code block renders a printable 適格請求書 from frontmatter + a Markdown items table
• Consumption tax summarized per rate (10% / 8% reduced / exempt), rounded once per rate per invoice
• Withholding tax (10.21% / 20.42% above ¥1,000,000) on pre-tax or tax-inclusive amounts; optional deductions
• Registration number format check with corporate check digit
• "Create new invoice" command: client suggestions, sequential numbering, due date from payment terms
• Amount formatting commands: ¥1,234,567 / 123万4567円 / 大字
• Print-ready via Obsidian's Export to PDF
• Requires Obsidian 1.13.0 or later

Markdown で書いた請求書を、消費税・源泉徴収を計算した状態で PDF に出力できるプラグインです。