Update summary with sample metadata information

Co-authored-by: openhands <openhands@all-hands.dev>

LEGACY_SYSTEM_REMOVAL_SUMMARY.md

@@ -59,6 +59,27 @@ Successfully removed the legacy station/pump configuration system and fully inte
 3. **Improved User Experience**: Dropdown selection is faster and more reliable than manual entry
 4. **System Integrity**: Validators prevent invalid configurations from being saved
 5. **Maintainability**: Simplified codebase with unified metadata approach
+6. **Human-Readable Display**: UI shows descriptive names instead of raw IDs for better user experience
+
+## Sample Metadata
+
+The system includes sample metadata for demonstration:
+
+### Stations
+- **Main Pump Station** (`station_main`) - Primary water pumping station
+- **Backup Pump Station** (`station_backup`) - Emergency backup pumping station
+
+### Equipment
+- **Primary Pump** (`pump_primary`) - Main water pump with variable speed drive
+- **Backup Pump** (`pump_backup`) - Emergency backup water pump
+- **Pressure Sensor** (`sensor_pressure`) - Water pressure monitoring sensor
+- **Flow Meter** (`sensor_flow`) - Water flow rate measurement device
+
+### Data Types
+- **Pump Speed** (`speed_pump`) - Pump motor speed control (RPM, 0-3000)
+- **Water Pressure** (`pressure_water`) - Water pressure measurement (PSI, 0-100)
+- **Pump Status** (`status_pump`) - Pump operational status
+- **Flow Rate** (`flow_rate`) - Water flow rate measurement (GPM, 0-1000)
 
 ## Testing