Harden bot, storage and web API

.gitignore

@@ -1,14 +1,21 @@
-#node
+# Node.js
 node_modules/
+coverage/
+*.log
+
+# Environment files, including local variants and backups
+.env*
+!.env.example
 
 # Local configuration and test data
-.env
-.env.*
-!.env.example
 src/static/gameservers-list.json
 
-#storage
+# Runtime storage
+storage/runtime/
 storage/permanent/*
 !storage/permanent/.gitkeep
 storage/temp/*
 !storage/temp/.gitkeep
+
+# Operating system files
+.DS_Store