Add noConnect to chip props

[seveibar]

Summary

• Add a shared noConnect prop to ChipPropsSU and the chipProps zod schema.
• Type it against chip pin labels so callers can mark intentionally unconnected pins directly.
• Update generated README and prop docs to reflect the new API.

Testing

• bun test tests/chip1-basic.test.ts tests/chip3-type-tests.test.tsx
• bunx tsc --noEmit
• Ran the required generation scripts for component types, manual-edits docs, README docs, and props overview

[tscircuitbot]

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Thank you for your contribution! 🎉

PR Rating: ⭐⭐
Impact: Minor

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