Fix Swift naming convention for patch age constant

[Copilot]

Renamed NORMAL_PATCH_AGE to normalPatchAge to follow Swift naming conventions for constants.

Changes:

• Updated constant declaration in PumpView.swift from uppercase to camelCase
• Updated reference in timerColor computed property

// Before
let NORMAL_PATCH_AGE = TimeInterval.hours(80)
return abs(activatedAt.timeIntervalSinceNow) > NORMAL_PATCH_AGE ? Color.yellow : Color.loopGreen

// After
let normalPatchAge = TimeInterval.hours(80)
return abs(activatedAt.timeIntervalSinceNow) > normalPatchAge ? Color.yellow : Color.loopGreen

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