chore: Update .gitignore for the project repo

Description
===========
- Added rules to ignore Python, Solidity, TypeScript build files.
- Added rules to ignore log files, databases, OS files, lock files.
- Ignored various IDE/editor temporary files and directories.

Inpact
=========
This is to keeps the repo clean and avoid unnecessary commits.

.gitignore

@@ -1,10 +1,10 @@
+# Current ignores
 decrypt/target
 decrypt/ciphertexts
 res/
 node_modules/
 .venv
 .vscode
-
 node_modules
 .env
 coverage
@@ -16,3 +16,47 @@ typechain-types
 cache
 artifacts
 
+# Python files
+env/
+*.pyc
+*.pyo
+*.pyd
+__pycache__/
+*.py[cod]
+*$py.class
+
+# Solidity files
+build/
+
+# TypeScript files
+dist/
+*.tsbuildinfo
+
+# Logs and databases
+*.log
+*.sql
+*.sqlite
+
+# OS generated files
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+
+# Package lock files
+package-lock.json
+yarn.lock
+
+# IDE/Editor folders
+.idea/
+*.swp
+*.swo
+*.swn
+*.bak
+*.orig
+*.old
+*.sage.py
+