Tags: boringSQL/qshape

test: PG 13–18 attribute plan fixtures

Plans captured by scripts/capture-attr-plans.sh from pinned
postgres:{13.23,14.24,15.19,16.15,17.11,18.6}-alpine; 10 cases × 6
versions. Only the InitPlan case differs (PG<17 prints its output as $1).
Replaces the hand-written PG16/PG18 InitPlan plan tests.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

perf: fingerprint queries across all cores

feat: sorts command (by cost)

chore: leave MeanExecTimeMs with one derivation

feat: sort profile for CostKey groups

feat: expose GroupingVersion

test: lock in deterministic member order

Co-authored-by: Kimi Code <noreply@moonshot.cn>

chore: switch release pipeline

fix: set osxcross CC for darwin cross-compile in goreleaser

Darwin builds were inheriting the goreleaser-cross container's default
linux gcc, which rejects clang's -arch flag. Point CC at o64-clang /
oa64-clang so CGO picks up the osxcross toolchain.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>