feat: replace dynamic require() with static SVG import map for Vite/Astro support

[sergical]

Summary

• Adds a code generator (scripts/generate-icons.js) that produces src/icons.generated.ts with static imports for all 218 SVG icons in both sizes (436 total imports)
• Replaces dynamic require() with template literals in platformIcon.tsx and preload.tsx with static import map lookups
• CJS build produces static require() calls (webpack/Gatsby compatible), ESM build produces static import statements (Vite/Astro compatible)
• No change to the public API

Why

Dynamic require() with template literals (e.g. require(`../svg/${icon}.svg`)) works in webpack but breaks in Vite/esbuild (Astro) — the bundler can't resolve non-JS dynamic requires at build time, causing 436 errors.

Test plan

• yarn build succeeds with zero errors
• build/icons.generated.js contains static require("../svg/foo.svg") calls
• esmbuild/icons.generated.js contains static import statements
• Existing webpack/Gatsby consumers unaffected (static require() is strictly more analyzable)
• Astro/Vite consumers can now resolve the ESM imports

🤖 Generated with Claude Code

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