Populate pin numbers on pads

[seveibar]

Summary

• propagate numeric pin numbers to pcb_smtpad and pcb_plated_hole elements when port names are numeric
• verify plated holes keep pin numbers and add a new SMD footprint regression covering pin_number on pads
• include a simple SMD footprint fixture for reuse in tests

Testing

• bunx tsc --noEmit
• bun test tests/repros/repro02-promicro-port-hints.test.ts
• bun test tests/repros/repro03-smt-pin-number.test.ts
• bun run format

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Codex Task

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Project	Deployment	Preview	Comments	Updated (UTC)
kicad-component-converter	Ready	Preview	Comment	Nov 20, 2025 5:03am

[seveibar]

CC @techmannih can you help me get this fix upstream and confirm that users importing the kicad_mod file that itsme had on discord (committed in this PR as pro_micro.kicad_mod) works with tsci dev when you try to reference the pin numbers? See discord thread for details: https://discord.com/channels/1233487248129921135/1440878142473634002/1440886651336265738

[tscircuitbot]

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PR Rating: ⭐⭐⭐
Impact: Major

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[techmannih]

Yes, sure I'm looking into it.