Parse raw Wi-Fi scale records

[gwgr]

Summary

• parse real raw Wi-Fi scale records with top-level weight and timestamp
• keep recovered raw Wi-Fi measurements weight-only, with body composition fields left empty
• update raw fallback tests so they use the observed raw endpoint shape instead of processed scale_data

Root Cause

The raw Wi-Fi fallback fetches wifi_scale/raw_data/{device_id}, but the returned records do not include scale_data. They were being passed through the processed-record parser, which discarded them as missing scale_data.

Validation

• .venv/bin/pytest tests/test_eufy_client.py -v
• .venv/bin/pytest tests/ -v
• .venv/bin/eufy-sync --dry-run --verbose

Live dry-run verification recovered 2 weight-only measurements from the raw Wi-Fi endpoint and reported that it would sync both to Garmin.

Masked live dry-run output:

2026-07-09 13:34:30,647 INFO eufy_sync: Syncing user: default
2026-07-09 13:34:30,647 INFO eufy_sync.eufy_client: Using cached Eufy token from credential store (expires in 29 days)
2026-07-09 13:34:30,688 INFO eufy_sync.garmin_auth: Restored saved Garmin session
2026-07-09 13:34:30,688 INFO eufy_sync.garmin_client: Authenticated to Garmin Connect as REDACTED_EMAIL
2026-07-09 13:34:30,688 INFO eufy_sync: New sync target detected for default, backfilling 7 days
2026-07-09 13:34:32,598 INFO eufy_sync.eufy_client: Fetched 222 raw measurements from Eufy
2026-07-09 13:34:33,137 INFO httpx: HTTP Request: GET https://api.eufylife.com/v1/device/wifi_scale/raw_data/REDACTED_DEVICE_ID?after=REDACTED_TIMESTAMP "HTTP/1.1 200 OK"
2026-07-09 13:34:33,138 INFO eufy_sync.eufy_client: Recovered 2 weight-only measurement(s) from the raw Wi-Fi endpoint
2026-07-09 13:34:33,138 INFO eufy_sync: Found 2 measurements for default
2026-07-09 13:34:33,139 INFO eufy_sync: User default: synced {'garmin': 2}
[DRY RUN] Would sync to garmin: REDACTED_WEIGHT_1 kg at REDACTED_MEASUREMENT_TIME_1
[DRY RUN] Would sync to garmin: REDACTED_WEIGHT_2 kg at REDACTED_MEASUREMENT_TIME_2
[DRY RUN] Would sync 2 measurements to Garmin.