Added gitignore file.

.gitignore

@@ -0,0 +1,21 @@
+# Ignore Pipfile locks
+**/Pipfile.lock
+
+# Ignore Go sum files
+**/go.sum
+
+# Ignore SQLite database files and their temporary files
+**/*.db
+**/*.db-shm
+**/*.db-wal
+
+# Ignore log files and logs directories
+**/*.log
+**/logs/
+
+# Ignore specific input/output directories and files
+input/output/
+
+# Ignore build binaries
+input/input
+onramp/onramp