Refactor FileStore to JSONStore (#30)

Reviewed-on: #30
Co-authored-by: Natercio Moniz <[email protected]>

cmd/any2anexoj-cli/main.go

@@ -113,7 +113,7 @@ func runWithIO(ctx context.Context, stdin io.Reader, stdout io.Writer) error {
 
 // buildStore returns the Store implementation that BuildReport should use.
 // When --state-file is empty an EphemeralStore is used so behaviour is
-// identical to pre-persistence runs. Otherwise a JSON-backed FileStore is
+// identical to pre-persistence runs. Otherwise a JSON-backed JSONStore is
 // returned, wired to a platform-specific RecordSerializer.
 func buildStore(stateFile, platform string, figi *ofigi.Client) (internal.Store, error) {
 	if stateFile == "" {
@@ -128,7 +128,7 @@ func buildStore(stateFile, platform string, figi *ofigi.Client) (internal.Store,
 		return nil, fmt.Errorf("unsupported platform for state persistence: %s", platform)
 	}
 
-	store, err := internal.NewFileStore(stateFile, platform, serializer)
+	store, err := internal.NewJSONStore(stateFile, platform, serializer)
 	if err != nil {
 		return nil, fmt.Errorf("creating file store: %w", err)
 	}