Harden public repo gitignore

Author: kriptoburak

.gitignore

@@ -6,3 +6,33 @@
 build/
 codegen.log
 kls_database.db
+
+# Public repo local safety
+.env
+.env.*
+!.env.example
+!.env.sample
+.npmrc
+.pypirc
+*.pem
+*.key
+*.crt
+*.p12
+*.pfx
+*.token
+*.secret
+*.log
+*.log.*
+.cache/
+.tmp/
+tmp/
+temp/
+.codex/
+.agents/
+.claude/
+.vscode/
+.DS_Store
+Thumbs.db
+*.swp
+*.swo
+*~