feat: pdip/spdip string aliases for the dip footprint - #856
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PDIP-8 (and the shouldered SPDIP variant) use the same land pattern the `dip` footprint already emits (KiCad DIP-8_W7.62mm), so `pdip8`, `spdip8`, and `pdip16` now normalize to the equivalent `dip` string instead of throwing 'Invalid footprint function'. Pin count and trailing params pass through unchanged. Fixes tscircuit#371
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Fixes #371
What
pdip8threwInvalid footprint function, got "pdip"whiledip8rendered fine. PDIP-8 and the shouldered SPDIP variant use the same land patterndipalready emits (KiCadDIP-8_W7.62mm), sonormalizeDefinitionnow rewritespdip/spdipprefixes todip, preserving the pin count and any trailing params:pdip8→ 8 pads ✅ ·spdip8→ 8 pads ✅ ·pdip16→ 16 pads ✅dip8(plated-hole x positions match exactly)This is deliberately minimal vs the three larger open PRs — a two-line normalizer reusing the proven DIP layout.
Verification
tests/pdip-alias.test.ts: pad counts for pdip8/spdip8/pdip16 plus coordinate-identity withdip8