docs: update installation and CLI documentation

Update .env.example with comprehensive CLI command documentation and
clearer DATABASE_PATH configuration comments. Enhance README.md with
restructured installation guide featuring new cloudcli commands,
detailed PM2 background service setup instructions, and improved
organization of global installation benefits and restart procedures.

Add CLI command reference showing cloudcli start, status, help, and
version commands. Expand PM2 section with separate subsections for
installation, service startup, and auto-start configuration.

README.md

@@ -69,8 +69,7 @@ npx @siteboon/claude-code-ui
 
 The server will start and be accessible at `http://localhost:3001` (or your configured PORT).
 
-**To restart**: Simply run the same `npx` command again after stopping the server (Ctrl+C or Cmd+C).
-
+**To restart**: Simply run the same `npx` command again after stopping the server
 ### Global Installation (For Regular Use)
 
 For frequent use, install globally once:
@@ -85,32 +84,71 @@ Then start with a simple command:
 claude-code-ui
 ```
 
-**Benefits**:
-- Faster startup (no download/cache check)
-- Simple command to remember
-- Same experience every time
 
 **To restart**: Stop with Ctrl+C and run `claude-code-ui` again.
 
-### Run as Background Service (Optional)
+### CLI Commands
 
-To keep the server running in the background, use PM2:
+After global installation, you have access to both `claude-code-ui` and `cloudcli` commands:
 
 ```bash
-# Install PM2 globally (one-time)
-npm install -g pm2
+# Start the server (default command)
+claude-code-ui
+cloudcli start
 
-# Start the server
-pm2 start claude-code-ui --name "claude-ui"
+# Show configuration and data locations
+cloudcli status
 
-# Manage the service
-pm2 list             # View status
-pm2 restart claude-ui # Restart
-pm2 stop claude-ui   # Stop
-pm2 logs claude-ui   # View logs
-pm2 startup          # Auto-start on system boot
+# Show help information
+cloudcli help
+
+# Show version
+cloudcli version
 ```
 
+**The `cloudcli status` command shows you:**
+- Installation directory location
+- Database location (where credentials are stored)
+- Current configuration (PORT, DATABASE_PATH, etc.)
+- Claude projects folder location
+- Configuration file location
+
+```
+
+### Run as Background Service (Recommended for Production)
+
+For production use, run Claude Code UI as a background service using PM2 (Process Manager 2):
+
+#### Install PM2
+
+```bash
+npm install -g pm2
+```
+
+#### Start as Background Service
+
+```bash
+# Start the server in background
+pm2 start claude-code-ui --name "claude-code-ui"
+
+# Or using the shorter alias
+pm2 start cloudcli --name "claude-code-ui"
+```
+
+
+#### Auto-Start on System Boot
+
+To make Claude Code UI start automatically when your system boots:
+
+```bash
+# Generate startup script for your platform
+pm2 startup
+
+# Save current process list
+pm2 save
+```
+
+
 ### Local Development Installation
 
 1. **Clone the repository:**