feat: add import/ directory for user database and config files

- Created import/db/ for custom SQL files
- Created import/conf/ for configuration overrides
- Added comprehensive README with usage examples
- Created example files for NPCs and playerbots config
- Updated import-database-files.sh to support new directory
- Maintains backward compatibility with database-import/
- Includes .gitignore to prevent accidental commits of sensitive data

scripts/bash/import-database-files.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copy user database files or full backup archives from database-import/ to backup system
+# Copy user database files or full backup archives from import/db/ or database-import/ to backup system
 set -euo pipefail
 
 # Source environment variables
@@ -9,7 +9,15 @@ if [ -f ".env" ]; then
   set +a
 fi
 
-IMPORT_DIR="./database-import"
+# Support both new (import/db) and legacy (database-import) directories
+IMPORT_DIR_NEW="./import/db"
+IMPORT_DIR_LEGACY="./database-import"
+
+# Prefer new directory if it has files, otherwise fall back to legacy
+IMPORT_DIR="$IMPORT_DIR_NEW"
+if [ ! -d "$IMPORT_DIR" ] || [ -z "$(ls -A "$IMPORT_DIR" 2>/dev/null)" ]; then
+  IMPORT_DIR="$IMPORT_DIR_LEGACY"
+fi
 STORAGE_PATH="${STORAGE_PATH:-./storage}"
 STORAGE_PATH_LOCAL="${STORAGE_PATH_LOCAL:-./local-storage}"
 BACKUP_ROOT="${STORAGE_PATH}/backups"