feat(model): handle cached extensions #61

	# GitHub Actions - CI for Go to build & test. See ci-go-cover.yml and linters.yml for code coverage and linters.
	# Taken from: https://github.com/fxamacker/cbor/workflows/ci.yml (thanks!)
	name: ci
	on: [push, pull_request]
	jobs:

	# Test on various OS with specified Go version.
	tests:
	name: Test on ${{matrix.os}}
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [macos-latest, ubuntu-latest]
	steps:
	- uses: actions/setup-go@v5
	with:
	go-version: "1.25.1"
	- name: Install golangci-lint
	run: \|
	go version
	curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh \| sh -s -- -b $(go env GOPATH)/bin v2.1.6
	- name: Checkout code
	uses: actions/checkout@v2
	with:
	fetch-depth: 1
	- name: Build project
	run: make
	- name: Run tests
	run: \|
	go version
	make presubmit

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