Score MIPI CSI and DSI pin labels

[jjoanna2-debug]

Summary

• add a narrow MIPI CSI/DSI lane-label scorer guard for aliases such as CSI_D0P, CSI_D0N, DSI_CLKP, DSI_CLKN, CSI_CKP, and DSI_CKN
• preserve indexed, underscore-separated, hyphen-separated, CK-shorthand, D-PHY, bare MIPI lane, and polarity-first lane forms such as MIPI_CSI0_D0_P, MIPI_DSI0_CLK_N, MIPI-CSI1-D2-P, MIPI-DSI1-CLK-P, MIPI_DSI2_CK_N, MIPI_DPHY_D3_N, MIPI_D0_P, MIPI_CSI_DP0, and MIPI_DSI_DN1 before the generic numeric fallback
• bound the lane-token matcher so family-only, generic control labels, and lane-token prefixes with extra suffixes do not score as real differential lane aliases
• add raw Circuit JSON regression coverage for generic chip/header pins carrying compact, indexed, hyphenated, CK-style, D-PHY, bare-MIPI, and polarity-first CSI/DSI lane hints

Review signal

• This is a scoped CSI/DSI/D-PHY lane matcher, not a broad digit-bearing label promotion.
• The matcher requires a MIPI/CSI/DSI/D-PHY family signal plus a real lane/polarity token at the end of the label, so false positives like MIPI_D0POWER, MIPI_DSI_CLKPWR, MIPI_DSI_CLKNRESET, MIPI_DSI_CLK_N_EN, and MIPI_CSI_D0_P_AUX stay below lane score.
• The regression fixture proves both generated NET names and readable pin entries preserve the lane hints across compact, separator-heavy, and polarity-first forms.

Validation

• npx --yes bun test tests/test4-mipi-csi-dsi-pin-labels.test.ts
• npx biome check lib/scorePhrase.ts tests/test4-mipi-csi-dsi-pin-labels.test.ts
• npx tsc --noEmit
• npx --yes bun run build
• git diff --check

/claim #4

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