Merge perf/interactive-zoom-smoothness: kill the coverage-boxes setDa… #282

	name: CI

	on:
	push:
	pull_request:

	# libtile57 is the sole engine: the build is CGO and statically links the native
	# lib, built with Zig 0.16 from the vendored tile57/ git submodule. A single
	# recursive checkout fetches the engine AND its nested IHO S-101 catalogue
	# submodules (from the IHO's own repos), so no separate engine checkout step.
	# NOTE: correct-by-construction but unvalidated until pushed to GitHub.
	jobs:
	build-test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v7
	with:
	submodules: recursive
	- uses: actions/setup-go@v6
	with:
	go-version: '1.26'
	cache: true
	cache-dependency-path: go.sum
	- name: Install Zig
	uses: mlugg/setup-zig@v2
	with:
	version: 0.16.0
	- name: Build libtile57
	run: cd tile57 && zig build
	- name: Format check
	run: make fmt-check
	- name: Vet
	run: make vet
	- name: Test
	run: make test
	- name: Build
	run: make build

	govulncheck:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v7
	with:
	submodules: recursive
	- uses: actions/setup-go@v6
	with:
	go-version: '1.26'
	cache: true
	cache-dependency-path: go.sum
	- name: Install Zig
	uses: mlugg/setup-zig@v2
	with:
	version: 0.16.0
	- name: Build libtile57
	run: cd tile57 && zig build
	- name: Vulnerability scan
	run: go run golang.org/x/vuln/cmd/govulncheck@latest ./...

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