Add fields to .Archive

[w568w]

This PR adds author and tag information to .Archive.Articles, as this data is required by some themes for their archive pages.

It also replaces several unmaintained dependencies.

[Copilot]

Pull Request Overview

This PR augments the archive output with author and tag metadata and refreshes several dependencies.

• Added Author and Tags fields to ArticleInfo and updated the Build function to set them.
• Swapped out facebookgo/symwalk for edwardrf/symwalk and bumped versions of fsnotify, markdown, feeds, websocket, urfave/cli, and other modules.

Reviewed Changes

Copilot reviewed 5 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
serve.go	Updated import path for symwalk from facebookgo to edwardrf
main.go	Updated import path for symwalk from facebookgo to edwardrf
build.go	Added Author and Tags to ArticleInfo and populate in Build
api.go	Updated import path for symwalk from facebookgo to edwardrf
go.mod	Replaced sources and bumped versions of several dependencies

Comments suppressed due to low confidence (6)

build.go:30

• Add a doc comment for the Author field in ArticleInfo to explain its purpose and expected structure.

	Author     AuthorConfig

build.go:31

• Add a doc comment for the Tags field in ArticleInfo to clarify the format and usage of tags.

	Tags       []string

build.go:167

• Add unit tests to verify that Build() correctly propagates the Author field into the archive output.

				Author:     article.Author,

build.go:168

• Add unit tests to verify that Build() correctly propagates the Tags field into the archive output.

				Tags:       article.Tags,

go.mod:15

• [nitpick] Review the changelog for urfave/cli/v2 to ensure this bump doesn't introduce breaking changes in CLI flags or behavior.

	github.com/urfave/cli/v2 v2.27.7

serve.go:9

• [nitpick] Ensure there are no remaining references to facebookgo/symwalk in the codebase to prevent inconsistent imports.

	"github.com/edwardrf/symwalk"