refactor(svg): extract tower-path rendering into a standalone buildTowerPaths() helper

[JhaSourav07]

🧩 Background

Both generateSVG and generateAutoThemeSVG in lib/svg/generator.ts contain a near-identical for loop that builds tower SVG strings. This duplicates ~30 lines of complex geometry logic.

🎯 Objective

Extract the loop body into a buildTowerPaths(towers, accent, autoTheme) helper so each renderer calls one function.

📁 Files to touch

• lib/svg/generator.ts

🛠️ Implementation steps

• Create function buildTowerPaths(towers: TowerData[], accent: string, autoTheme: boolean): string.
• Move the shared loop body into it.
• Call it from both generateSVG and generateAutoThemeSVG.

✅ Definition of done

• Both renderers delegate to the new helper.
• All SVG generator tests pass unchanged.
• No observable change in SVG output.

[github-actions]

Hey @JhaSourav07! 🤖

My semantic scan detected that this issue might be a duplicate of #287 (Similarity: 85.6%).

Please check between these issues and close this one if it is a duplicate.

[Pratikshya32]

Hello @JhaSourav07! /claim

[Avantika2903]

Hi @JhaSourav07
I 'm a GSSoc Contributor and would like to work on this issue according to the methodology you said!