Fix revive style issues (bd-56)

- Fix 14 unused-parameter warnings (rename to _)
- Fix 2 redefines-builtin-id (max→maxCount, min→minInt)
- Fix 3 indent-error-flow issues with gofmt
- Merged duplicate bd-126 into bd-116

cmd/bd/import_phases.go

@@ -12,7 +12,7 @@ import (
 )
 
 // Phase 1: Get or create SQLite store for import
-func getOrCreateStore(ctx context.Context, dbPath string, store storage.Storage) (*sqlite.SQLiteStorage, bool, error) {
+func getOrCreateStore(_ context.Context, dbPath string, store storage.Storage) (*sqlite.SQLiteStorage, bool, error) {
 	var sqliteStore *sqlite.SQLiteStorage
 	var needCloseStore bool