=== Manual Database Test ===
Test data to send:
Array
(
    [device_id] => TEST_ESP32_1765840462
    [total_cycles] => 5
    [waste_bags_saved] => 17.5
    [co2_emissions_diverted] => 11.57
    [last_emptied_time] => 1765840462000
    [month_start_time] => 1765840462000
    [data_version] => 2
    [checksum] => 12345
)

JSON payload:
{"device_id":"TEST_ESP32_1765840462","total_cycles":5,"waste_bags_saved":17.5,"co2_emissions_diverted":11.57000000000000028421709430404007434844970703125,"last_emptied_time":1765840462000,"month_start_time":1765840462000,"data_version":2,"checksum":12345}

=== Response ===
HTTP Code: 200
Response: {"success":true,"message":"Metrics saved successfully","insert_id":"7420","device_id":"TEST_ESP32_1765840462","total_cycles":5,"timestamp":"2025-12-15 23:14:22"}

✓ SUCCESS! Data should be in database

Test records in database: 535

Latest test records:
- ID: 7420, Device: TEST_ESP32_1765840462, Cycles: 5
- ID: 7419, Device: TEST_DEVICE_1765805680, Cycles: 999
- ID: 7417, Device: TEST_ESP32_1765804375, Cycles: 5

=== Test Complete ===