Parses Garmin Connect get_body_battery() per day, storing charged/drained/
start+end levels and the fine-grained [[ts_ms, level, type, stress]] values
array in a new body_battery JSONB column on health_metrics.
Frontend adds:
- BatteryRing SVG gauge (color-scaled 0–100)
- BodyBatteryChart: ComposedChart with type-colored bars (REST/ACTIVE/SLEEP/
STRESS) and battery level overlay line, matching Garmin's layout
- Body battery trend chart in the Trends section (end_level per day)
Also adds avg_hr_day and weight data which now correctly sync with the
intraday_hr JSON serialization fix from the previous commit.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Backend:
- main.py: add ADD COLUMN IF NOT EXISTS migrations for avg_hr_day, max_hr_day,
and intraday_hr (JSONB) on health_metrics — these columns were in the model
but missing from existing DB instances, silently dropping all avg/max HR data.
- models/user.py: add intraday_hr JSON column to HealthMetric.
- garmin_connect_sync.py: fetch body composition (weight, BMI, body fat, muscle
mass) via get_body_composition() per day, with stats.bodyWeight as fallback.
Fetch intraday heart rate via get_heart_rates() and store non-null
[epoch_ms, bpm] pairs in intraday_hr.
- health.py: add GET /health-metrics/intraday?date=YYYY-MM-DD endpoint that
returns the stored intraday_hr array for a specific day.
Frontend (HealthPage):
- Add IntradayHrChart component: AreaChart rendering the 24-hour HR trace
with time-of-day x-axis.
- DailySnapshot: show 24-hour HR chart (when intraday data present) above
the activity strip; add weight + body fat % to the Heart & HRV card;
show max HR alongside avg HR.
- HealthPage: query /intraday for the selected day and pass data down.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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