Prompt for rider weight wherever W/kg would render as 0

[walkersutton]

Summary

With no rider weight set, every power_to_weight readout renders 0.0, which is easy to miss until after an export. This surfaces the weight input wherever that happens:

• Preview canvas — floating banner over the preview when the template uses W/kg (floats so the preview doesn't shift when it appears/disappears)
• Element properties — inline prompt under the metric picker for value / meter / gauge elements set to W/kg
• Element list — warning icon on W/kg rows while no weight is set
• Export dialog — prompt before rendering; Enter inside the field edits rather than starting the render
• Settings — weight input extracted into a reusable RiderWeightField

State: appState gains usesRiderWeight / needsRiderWeight getters; riderWeightKg resolution is shared.

Also removes the "C" logo chip from the top toolbar.

Test plan

• Load a template with a W/kg element and no rider weight → banner on canvas, warning icon in element list, prompt in properties
• Enter a weight in any of the prompts → all prompts disappear, readouts show real values
• Open export dialog with no weight → prompt shown; pressing Enter in the field doesn't start the render
• Switch kg/lb → value converts correctly

🤖 Generated with Claude Code

[vercel]

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Project	Deployment	Actions	Updated
cyclemetry	Ready	Preview	Sep 30, 2026 4:13am UTC