refactor(bench): simplify metrics and improve time formatting #6

	name: Continuous Benchmarking

	on:
	push:
	branches:
	- main
	pull_request:
	branches:
	- main

	permissions:
	contents: write
	deployments: write

	jobs:
	benchmark:
	name: Performance Benchmarks
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v4

	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	go-version: '1.23'

	- name: Run benchmarks
	run: \|
	go test -bench=. -benchmem -run=^$ ./... \| tee bench_output.txt

	- name: Store benchmark result
	uses: benchmark-action/github-action-benchmark@v1
	with:
	name: Go Benchmarks
	tool: 'go'
	output-file-path: bench_output.txt
	github-token: ${{ secrets.GITHUB_TOKEN }}
	auto-push: true
	# Show alert with commit comment on detecting possible performance regression
	alert-threshold: '120%'
	comment-on-alert: true
	fail-on-alert: false
	# Enable Job Summary
	summary-always: true

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