steve c944c84939 Thinner check lines; second signature line toggle ...

- Halve all check line thicknesses (line_thick * 0.5)
- Add second_signature column to account table with runtime migration
- Account settings toggle: enables a second signature line drawn 0.25"
  above the primary signature line, matching its width and thickness

2026-03-18 14:04:15 -06:00

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app.js

Thinner check lines; second signature line toggle

2026-03-18 14:04:15 -06:00