=== Manual Database Test ===
Test data to send:
Array
(
    [device_id] => TEST_ESP32_1756929347
    [total_cycles] => 5
    [waste_bags_saved] => 17.5
    [co2_emissions_diverted] => 11.57
    [last_emptied_time] => 1756929347000
    [month_start_time] => 1756929347000
    [data_version] => 2
    [checksum] => 12345
)

JSON payload:
{"device_id":"TEST_ESP32_1756929347","total_cycles":5,"waste_bags_saved":17.5,"co2_emissions_diverted":11.57000000000000028421709430404007434844970703125,"last_emptied_time":1756929347000,"month_start_time":1756929347000,"data_version":2,"checksum":12345}

=== Response ===
HTTP Code: 200
Response: {"success":true,"message":"Metrics saved successfully","insert_id":"4095","timestamp":"2025-09-03 19:55:47"}

✓ SUCCESS! Data should be in database

Test records in database: 78

Latest test records:
- ID: 4095, Device: TEST_ESP32_1756929347, Cycles: 5
- ID: 3990, Device: TEST_ESP32_1756815114, Cycles: 5
- ID: 3989, Device: TEST_DEVICE_1756803268, Cycles: 999

=== Test Complete ===