[Feature]: Add badge size options (small / medium / large)

[Nagajyothi-tammisetti]

🚀 Feature Request

Problem

Currently, the CommitPulse badge is fixed at 600×420px with no way to resize it.
This makes it hard to fit cleanly into different README layouts or profile styles.

Proposed Solution

Add a size query parameter that supports three presets:

Size	Dimensions
small	400×280px
medium	600×420px (default)
large	800×560px

Example Usage

/api/streak?user=jhasourav07&size=small
/api/streak?user=jhasourav07&size=large

Where Changes Would Be Needed

• types/index.ts — add size?: string to BadgeParams
• lib/svg/generator.ts — read params.size and scale SVG dimensions
• app/customize/page.tsx — add Size dropdown in the control panel

Additional Context

This would pair well with the existing font and theme customization options
already available in the Customization Studio.

[Nagajyothi-tammisetti]

Hi @JhaSourav07
I'd love to work on this feature! Could you please assign this issue to me? I'm familiar with the codebase and have been contributing to the project.

[JhaSourav07]

@Nagajyothi-tammisetti

sure, assigned