fix: account for text indent when wrapping

[arjxnt]

Summary

• Reduce the first line's wrap budget by text-indent; later lines retain the full container width.
• Resolve length-based indents against the measurement width, keeping percentage indents consistent.

The wrapping code previously evaluated every line against the full container width, then applied the indent during rendering. This allowed the first line to overflow its container.

Fixes #753.

Validation

• vitest run test/text-indent.test.tsx
• tsc -p tsconfig.json --noEmit
• eslint src/text/index.ts test/text-indent.test.tsx --quiet
• prettier --check src/text/index.ts test/text-indent.test.tsx

[vercel]

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Project	Deployment	Actions	Updated (UTC)
satori-playground	Ready	Preview, Comment, Open in v0	Jul 15, 2026 8:38pm