Update .gitignore

.gitignore

@@ -1,6 +1,46 @@
-.vscode
-node_modules
+# 📦 Dependencies
+node_modules/
 .yarn/cache
 .yarn/install-state.gz
-ts/dest
-/build
+# 🛡️ SAFETY: Ignore error logs to keep the repo clean
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+
+# 🏗️ Build & Output
+# Using a trailing slash matches directories specifically
+/build/
+ts/dest/
+# Common other build artifacts (just in case)
+dist/
+out/
+coverage/
+
+# 🔐 Security & Environment
+# CRITICAL: Never commit environment variable files containing secrets!
+.env
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+# 🖥️ OS & System Files
+.DS_Store
+Thumbs.db
+.idea/
+
+# 🆚 Editor Config (Smart Approach)
+# Don't ignore the whole .vscode folder! 
+# We want to share 'extensions.json' and 'launch.json' but ignore local user state.
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+!.vscode/*.code-snippets
+
+# 🚀 Somnia/Aztec Specifics (Based on context)
+# If you have generated circuit artifacts that shouldn't be committed:
+# proofs/
+# circuits/*.json