Build strong-pin neighbor lists without scanning every possible pin pair

[ugin-man]

getPinIdToStronglyConnectedPinsObj scans every possible pair even when pinStrongConnMap is sparse. Index pin positions, collect actual connected pairs from the map entries, then visit those pairs in the original pin order.

Preserve neighbor-array ordering, output-key insertion order, ChipPin object identity, two-way edge deduplication, and disabled/self/dangling-edge behavior. Checking every hyphen split retains the original helper's behavior for IDs containing hyphens, including keys that match more than one valid pair. This is a performance change to own-entry connection maps, not a new connectivity rule.

Verification on the SHA-verified original helper (1de2bd971737c3bd53549d671b4f20a899276908):

• Four committed behavior tests pass before and after, including 1,500 pins, ordering, identity, ambiguous hyphens, disabled/dangling edges, and input preservation.
• A separate deterministic comparison of 1,000 generated inputs matched complete Object.entries results and neighbor order.
• Local Node 22.16.0 benchmark, 1,500 pins / 750 disjoint edges, one warm-up per version and seven interleaved trials: median 1032.15 ms before / 0.734 ms after. This is a synthetic helper-level sparse-graph measurement, not an end-to-end layout or Bun speedup guarantee. CI contains no timing threshold.

Local tests execute the actual type-stripped modules; only runner/import-path adaptations were made, and the committed files additionally receive formatting. Indexes add O(pins + discovered pairs) storage; dense graphs and very long identifiers have different costs. Separate from pin-owner indexing #191 and whole-network merging #252. No solver geometry, dependency or snapshot change.

Base: 32dad82. Upstream Bun/type/format CI not yet verified; no browser or build result claimed. Prepared with ChatGPT assistance and the account owner's authorization; no manual human testing claimed.

[vercel]

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Project	Deployment	Actions	Updated
matchpack	Ready	Preview	Sep 8, 2026 9:09pm UTC