feat: Add wispermoney local command (#59)

## Changes

- Moved `setup.sh` to `public/setup.sh` so it's accessible via
`https://whisper.money/setup.sh` for remote users
- Added `wispermoney` wrapper command in root directory for easy local
execution
- Updated README to document the new `wispermoney` command
- Removed duplicate `setup.sh` from root directory

## Benefits

- Remote users can still use: `bash <(curl -fsSL
https://whisper.money/setup.sh)`
- Local developers can now use: `./wispermoney install` (or
start/stop/upgrade)
- Single source of truth - no duplicate setup scripts
- Cleaner project structure

README.md

@@ -68,25 +68,25 @@ cd whisper-money
 2. **Run the setup script:**
 
 ```bash
-./setup.sh install
+./wispermoney install
 ```
 
 ### Available Commands
 
-Once installed, you can use the setup script for common tasks:
+Once installed, you can use the `wispermoney` command for common tasks:
 
 ```bash
 # Start all services
-./setup.sh start
+./wispermoney start
 
 # Stop all services
-./setup.sh stop
+./wispermoney stop
 
 # Upgrade to latest version
-./setup.sh upgrade
+./wispermoney upgrade
 
 # Interactive menu
-./setup.sh
+./wispermoney
 ```
 
 ### Development Server

wispermoney

@@ -0,0 +1,4 @@
+#!/bin/bash
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+exec "$SCRIPT_DIR/public/setup.sh" "$@"