The All Winds Skipper’s Toolbox™

• Google Play Store Native Packaging (TWA): Packaged the production application into a signed Trusted Web Activity (TWA) bundle (.aab) for official Google Play Store distribution. Implemented cryptographic Digital Asset Links (assetlinks.json) domain verification for a fullscreen, native app experience free of browser chrome and URL bars.
• Trilingual Engine (EN / DE / FR): Added complete French localisation across the entire application—including the Skipper’s Decision Matrix, W.O.B.B.L.E. checklists, navigational solvers, tide calculators, and official sea-time certification.
• Native Mobile Watch Handover: Upgraded the watch handover export engine to use Chromium-compliant MIME formatting (.txt / text/plain) on mobile devices. Skippers can now trigger Android and iOS system share drawers directly from the app to send live handover snapshots via WhatsApp, Quick Share, or AirDrop without navigating phone storage.
• Web Share Target Auto-Import: Configured native Android ACTION_SEND intent filtering and Service Worker background interception. Receiving shared handover files directly opens Skipper Toolbox and triggers automated log, waypoint, and vessel spec synchronisation.
• Async Storage Optimisation & Telemetry: Parallelised IndexedDB vault reading via Promise.all() to preserve user gesture execution windows for native sharing. Added Google Analytics 4 environment tracking to differentiate between installed standalone app users and browser visitors (app_platform).
• Desktop Inspector Decoupling: Formally separated the shore-based Desktop Inspector (/inspector) from the boat-side operational app shell, providing skippers with an independent route plotting, log auditing, and setup preparation station.

• Translation Audit & String Cleanup: Patched missing dictionary keys across the Skipper’s Decision Matrix verdicts, VHF emergency radio script generators, and PDF attestation headers.
• Deck Log Chime & Notification Lifecycle: Refined the Web Audio API synthesiser for the hourly log interval timer and updated notification permission requests for non-intrusive deck watch reminders.
• Schema & Storage Polish: Streamlined legacy localStorage to IndexedDB migration routines and normalised vessel call sign data handling across setup schemas.

• Desktop Passage & Waypoint Planner: Introduced an interactive OpenSeaMap route planner in the Desktop Inspector (/inspector). Skippers can click or drag points to build route itineraries, calculate leg distances (NM) and headings (°T), and estimate passage times based on planned boat speed.
• Plotter-Ready WGS 84 Coordinates: Added automatic coordinate formatting in Degrees & Decimal Minutes (DD°MM.MMM’) for direct entry into Raymarine, B&G, or Garmin plotters, plus CSV export functionality.
• PWA Waypoints Sub-Tab & Trip Sync: Added a dedicated 📍 Waypoints view under the Planning tab. Route waypoints created on desktop now bundle into TRIP_SETUP_[BoatName].json setup files and import seamlessly into crew phones.
• Logbook SOG & Timestamp Parser: Upgraded the log auditor calculation engine to handle European date formats (DD.MM.YYYY) and automatic date inheritance during midnight watch rollovers (e.g. 23:00 to 01:00).
• Call Sign Key Normalisation: Unified callSign and call JSON properties across desktop setup files and mobile PWA data structures to ensure vessel call signs reliably populate emergency VHF scripts.
• Map Event Fixes & UI Polish: Resolved Leaflet marker touch collisions that previously blocked sequential waypoint drops on the chart, and added missing bilingual dictionary keys for web logbook alarm notifications (log_alarm_note).

• Full German Translation (EN/DE): The entire application—including the Skipper’s Decision Matrix, checklists, logbook fields, and PDF generator—is now fully bilingual via a dynamic toggle in the header. The app automatically routes back to the correct language-specific homepage.
• Landscape Sea Time PDF: The Official Sea Time Certificate generator has been rebuilt into a landscape format to prevent data truncation. It now includes a dedicated “Sea State” column and an Anti-Fraud Security Footer on every page.
• Engine Hours Double-Entry Sync: The “Initial Engine Hours” input is now positioned seamlessly in the Yacht Details tab and automatically calculates “Current” and “Trip” engine hours dynamically across the app.
• Rule of 12ths Usability Fix: Updated the tidal calculator logic and labels to “Previous/Next Tide,” allowing the math to automatically handle both rising and dropping (ebb) tides accurately.
• Douglas Sea State Scale: Added a quantifiable Sea State scale to the Rules reference tab to help inexperienced crew accurately estimate wave height conditions.
• Offline Android/iOS Fixes: Refactored the Service Worker and file architecture into modular components (app.js, style.css, i18n.js) for faster loading, stricter caching, and warning-free offline Android installations.

• Offline Engine Restoration: Reconfigured the Progressive Web App (PWA) Service Worker architecture. The app now correctly caches all core assets, map engine scripts, and UI elements for guaranteed zero-signal offshore performance.
• Seamless Background Updates: Resolved a caching bug that prevented devices from fetching new versions. Future app updates will now securely download in the background and apply automatically on the next launch.
• Android & Samsung Compatibility: Fixed a WebAPK minting issue where installing the app via Samsung Internet or social media browsers triggered a Google Play Protect “Unsafe App” warning.
• Verified PWA Identity: Locked the app’s digital identity (id and scope manifest properties) to ensure fully certified, warning-free installations across all modern Android devices.
• Browser Advisory Banner: Added automatic browser detection. If accessed via a non-standard wrapper (like Samsung Internet), a temporary advisory banner will guide the user to open the app in Google Chrome for a verified, 1-click installation.

• Enhanced In-App Logbook Engine Display: Updated deck log entry cards so cumulative engine meter readings display clearly alongside every recorded fix and leg metric card.
• Dedicated Engine Column in PDF: Split the PDF sea time table to feature a dedicated Engine column (e.g. 2531.1h), keeping Wind & Baro distinct and uncrowded.
• Harbour-Aware Leg-by-Leg Mileage Algorithm: Replaced flat percentage estimates with a dynamic leg-by-leg algorithm:
  • Pure Sail: 100% allocated to sail distance when engine hours remain static.
  • Harbour & Low-Speed Manoeuvring: Low-speed legs (≤ 3.5 kts) scale engine speed to 1.5–3.0 kts to accurately reflect engine warm-up, idling, and slow harbour transits without over-allocating engine miles.
  • Open-Water Cruising: Open-water motoring legs cap estimated motor speed at 6.0 kts.
  • Hard Cap: Engine distance per leg is strictly capped so it can never exceed total GPS distance for that leg.
• Standardised 3-Digit Longitude Formatting: Formatted all longitude coordinates across the app (GPS auto-fill, map tooltips, and PDF entries) with 3-digit degree padding (e.g. 018° 41.434' E).
• International Terminology: Removed German terms across the UI, schema metadata, and PDF exports, standardising on Days at Sea. Renamed “Starting Harbour / Base” to Starting Location.
• PDF Box 1 Grid Restructure: Reorganised Vessel Details into a 2-column grid across 4 rows with expanded vertical clearance (24 mm) to prevent longer location names from overflowing box boundaries.
• Single-Location Skipper Credentials: Removed qualification titles and licence numbers from the bottom signature block, displaying them exclusively in Box 2 at the top.

Pre-release build for testing PDF layout grids, harbour speed parameters, and coordinate formatting prior to consolidating into v0.9.31.

Functioning core, basic usability tests passed, ready for usability improvements