chore: ignore wallet-operator-mapper runtime artifacts

Add gitignore rules for wallet-operator-mapper script working files:
- .env for local configuration
- data/ directory for analysis outputs
- JSON mapping files generated during execution
- package-lock.json for npm dependency lock

These files are runtime artifacts that should not be tracked.

Author: lrsaturnino

.gitignore

@@ -66,3 +66,9 @@ tmp/
 
 # Output directory
 out/
+
+# Script working directories and artifacts
+scripts/wallet-operator-mapper/.env
+scripts/wallet-operator-mapper/data/
+scripts/wallet-operator-mapper/*.json
+scripts/wallet-operator-mapper/package-lock.json