✨ feat(fleetledger): add initial implementation of FleetLedger app

- introduce Dockerfile for Python environment setup
- create FastAPI app with authentication and user management
- implement server management features with CRUD operations
- add PWA support with service worker and manifest
- set up initial templates for UI components

📝 docs(fleetledger): add README for FleetLedger application

- describe app features and functionalities
- provide security notes and quick start guide

📦 build(fleetledger): configure Docker and docker-compose setup

- define Dockerfile for application container
- create docker-compose.yml for service orchestration
- specify environment variables and volumes for persistence

fleetledger/app/static/style.css

@@ -0,0 +1,5 @@
+/* Simple extra styles on top of Tailwind. */
+body {
+  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
+    "Segoe UI", sans-serif;
+}