🔧 chore(repo): restructure project file hierarchy

- move project files out of fleetledger directory to root
- update .gitignore to reflect new .env path

📝 docs(README): add detailed project description

- provide an overview of FleetLedger's features and usage
- include setup instructions and security notes

docker-compose.yml

@@ -0,0 +1,21 @@
+version: "3.9"
+services:
+  fleetledger:
+    build: .
+    container_name: fleetledger
+    ports:
+      - "8000:8000"
+    environment:
+      - DATABASE_PATH=/data/fleetledger.db
+      # SESSION_SECRET must be provided (e.g. via .env) and should be long and random
+      - SESSION_SECRET=${SESSION_SECRET:?Set SESSION_SECRET in your environment}
+      # Set to 0 only for local HTTP testing; keep secure (default) in production
+      - SESSION_COOKIE_SECURE=${SESSION_COOKIE_SECURE:-1}
+      # Optional: encryption key for management passwords (Fernet key)
+      # - ENCRYPTION_KEY=your_fernet_key_here
+    volumes:
+      - fleetledger_data:/data
+    restart: unless-stopped
+
+volumes:
+  fleetledger_data: