feat(benches): add benchmarks for historic and latest events scanning #2

	name: Run PR Benchmarks

	# This workflow runs benchmarks on pull requests and caches the results.
	# For security, benchmark results are uploaded as artifacts and tracked
	# by a separate workflow (pr_benchmarks_track.yml) that has access to secrets.

	on:
	pull_request:
	types: [opened, reopened, synchronize]
	paths:
	# Only run benchmarks if relevant code changes
	- "src/**"
	- "benches/**"
	- "Cargo.toml"
	- "Cargo.lock"

	permissions:
	contents: read

	env:
	CARGO_TERM_COLOR: always

	jobs:
	benchmark_pr:
	name: Run PR Benchmarks
	runs-on: ubuntu-latest

	steps:
	- name: Harden the runner (Audit all outbound calls)
	uses: step-security/harden-runner@0634a2670c59f64b4a01f0f96f84700a4088b9f0 # v2.12.0
	with:
	egress-policy: audit

	- name: Checkout repository
	uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2

	- name: Install Rust toolchain
	uses: actions-rust-lang/setup-rust-toolchain@1780873c7b576612439a134613cc4cc74ce5538c # v1.15.2

	- name: Install Foundry (Anvil)
	uses: foundry-rs/foundry-toolchain@v1
	with:
	version: stable

	- name: Run benchmarks
	run: \|
	cargo bench --manifest-path benches/Cargo.toml 2>&1 \| tee benchmark_results.txt

	- name: Upload benchmark results
	uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
	with:
	name: benchmark_results.txt
	path: ./benchmark_results.txt

	- name: Upload PR event
	uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
	with:
	name: event.json
	path: ${{ github.event_path }}

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