Add data export/import, CSV exports and race packages

README.md

@@ -37,6 +37,8 @@ JMK RB RaceController is an RC timing and race-control system with support for s
 - Storage/import tools:
   - full race-data export/import for backup or moving to another machine
   - directory export/import for only classes, drivers and cars
+  - CSV export for drivers and cars when you want simple spreadsheet lists
+  - single race-package export/import from `Race Setup -> Manage -> Race Actions`
 - Race Setup includes:
   - grouped `Participants` and `Teams` sections in `Manage`
   - a four-step `Create Race Wizard` for new races
@@ -156,6 +158,16 @@ JMK RB RaceController is an RC timing and race-control system with support for s
 - `Generation` is kept separate so actions like qualifying generation, reseeding, finals generation, and bump-up do not clutter the format form.
 - `Live / results` is where grid, standings, print, PDF, and finals matrix are used once the structure is ready.
 
+## Export / Import
+- `Settings -> Storage` now supports:
+  - full JSON export/import for the complete competition database
+  - directory JSON export/import for only classes, drivers, and cars
+  - CSV export for drivers and cars
+- `Race Setup -> Manage -> Race Actions` now supports single race packages:
+  - export one race with its sessions, results, and referenced classes/drivers/cars
+  - import that package into another installation as a new race entry
+- JSON export files now include export metadata and a schema version field so future imports can be handled more safely.
+
 ## Race features
 
 ### Follow-up time