feat: Initial project setup with Wiki.js and management scripts

- Add Docker Compose setup for Wiki.js and PostgreSQL.
- Include setup and backup scripts for easy management.
- Create command-line scripts to create and edit wiki pages via the GraphQL API.
- Add comprehensive README and .gitignore.

.gitignore

@@ -0,0 +1,18 @@
+# Environment variables
+.env
+
+# Python
+venv/
+__pycache__/
+*.pyc
+
+# Backups
+backups/
+
+# Schema file
+introspectionSchema.json
+
+# IDE / OS specific
+.vscode/
+.idea/
+.DS_Store