[Calories] Update formulas for less active inflation

[RKBoss6]

Fixes #4286, uses different weighting and interpolation of maxHR to cut down significantly on caloric inflation.

[Copilot]

Pull request overview

Updates the Calories app’s active-calorie estimation to reduce overestimation during low-activity periods by introducing a max-HR–based scaling factor and adjusting how step vs HR contributions are blended.

Changes:

• Adds a max-HR interpolation coefficient to scale down active calories at lower exertion levels.
• Adjusts step-rate thresholds/weighting used when blending step-based vs HR-based calorie estimates.
• Updates app docs/metadata/changelog to reflect the new formula behavior and version bump.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
apps/calories/lib.js	Introduces max-HR scaling for active calories and updates step/HR blending logic.
apps/calories/README.md	Documents the added max-HR–based interpolation step in the algorithm description.
apps/calories/metadata.json	Bumps app version from 0.01 to 0.02.
apps/calories/ChangeLog	Notes the 0.02 formula adjustment aimed at reducing overestimation.

Comments suppressed due to low confidence (2)

apps/calories/lib.js:160

• The added print statements in the core calorie calculation will run for every interval and can degrade performance and flood logs. These should be removed or gated behind an explicit debug flag.

  let stepsKcalMin = (stepsMet * 3.5 * weight) / 200;
  // blend METs
  let finalActiveKcalMin = 0;
  if (stepsPerMin > 180) {
    // strenuous activity
    finalActiveKcalMin = hrKcalMin * 0.5 + stepsKcalMin * 0.5;
  } else if (stepsPerMin >= 60) {

apps/calories/lib.js:176

• Remove remaining debugging output from the library return path; this function is likely called periodically and should not print each time.

    bmrCalories: Math.round(bmr * healthData.duration)
  };

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[RKBoss6]

I've also removed the BETA status from the app in metadata and title, as the app is pretty reliable as of now. I kept the beta testing info in the README so users still know what to do if unexpected behavior occurs or wants to cross-test, but I think this app is good to go now without the beta tag.