add FilePart implement for ContentPart to support chat with file #2338

	# GitHub Actions CI workflow for Go project
	name: CI
	on:
	push:
	branches:
	- main
	pull_request:
	branches:
	- main
	jobs:
	lint:
	name: Lint
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-go@v5
	with:
	go-version-file: go.mod
	- name: Run golangci-lint
	uses: golangci/golangci-lint-action@v6
	with:
	version: v1.61
	args: --timeout=5m
	build-examples:
	name: Build Examples
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-go@v5
	with:
	go-version: stable
	- name: Build examples
	run: make build-examples
	build-test:
	name: Build and Test
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-go@v5
	with:
	go-version: stable
	- name: Build
	run: go build -v ./...
	- name: Test
	env:
	OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
	GENAI_API_KEY: ${{ secrets.GENAI_API_KEY }}
	run: go test -v ./...

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