Add editable boat logfactor

[ultimate]

Motivation

• Introduce a per-boat logfactor (positive decimal) to capture a vessel-specific loch/log correction and allow sailors to edit and persist it from the boat form.

Description

• Add logfactor: number to the Boat domain model (app/models/boat.ts) and include it in the BoatForm type (app/models/logbook-forms.ts).
• Wire default/fallback values and form mapping by updating emptyBoat, defaultBoatForm, and boatToForm with a fallback of 1 when loaded values are non-positive (app/components/logbook/forms.ts).
• Add a numeric input field for Log factor in the boat manager form with required/positive validation and update saveBoat to persist boatForm.logfactor into the saved Boat object (app/components/logbook/pages/BoatManagerPage.tsx, app/components/LogbookApp.tsx).
• Persist the column to the database by adding a migration 020_boat_logfactor.sql, updating app/lib/db/schema.sql, and extending BoatsRepository.insert and LogSheetsRepository.toLogbook to read/write the logfactor (app/lib/db/migrations/020_boat_logfactor.sql, app/lib/repositories/boats-repository.ts, app/lib/repositories/log-sheets-repository.ts).
• Update i18n labels for the new field and adjust fixtures/tests to include logfactor where required (app/lib/i18n/dictionaries/*, tests/*, tests/fixtures/logbook.ts).

Testing

• Ran npm test (Vitest) and all test files passed: 27 test files, 153 tests passed and 12 skipped (final run succeeded).
• Ran npm run typecheck (tsc --noEmit) and it succeeded with no type errors.
• Ran npm run lint (eslint .) and it completed without errors.

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Codex Task

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Project	Deployment	Actions	Updated (UTC)
ultilog	Ready	Preview, Comment	Jul 15, 2026 4:37pm

[ultimate]

Implements #141