⚡ Bolt: Tighten TimelineView scope in RunningView

[google-labs-jules]

💡 What: Scoped the TimelineView inside RunningView to only wrap the CountdownRing.
🎯 Why: Wrapping the entire view hierarchy in TimelineView forced static components (labels, buttons) to be re-evaluated and re-rendered every second.
📊 Impact: Eliminates unnecessary re-evaluations for static elements, reducing main thread rendering overhead by preventing redundant work on every tick.
🔬 Measurement: Use Xcode Instruments (SwiftUI template) to verify that static elements in RunningView are no longer re-evaluating every second.

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PR created automatically by Jules for task 4571950080899537864 started by @TytaniumDev

[google-labs-jules]

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