Add changelog init command

[lcawl]

Summary

Add a docs-builder changelog init command that scaffolds changelog configuration and directory structure for a repository.

What it does

• Creates docs/changelog.yml from the built-in changelog.example.yml template (if it doesn't already exist)
• Creates docs/changelog and docs/releases directories (if they don't already exist)
• When --changelog-dir or --bundles-dir override the defaults, updates bundle.directory and bundle.output_directory in the created changelog.yml

Options

Option	Default	Description
--repository	Current directory	Repository root path
--docs	{repository}/docs	Docs folder path
--config	{docs}/changelog.yml	Changelog config file path
--changelog-dir	{docs}/changelog	Changelog input directory
--bundles-dir	{docs}/releases	Bundles output directory

Usage examples

# Initialize in current directory
docs-builder changelog init

# Initialize in a specific repository
docs-builder changelog init --repository /path/to/my-repo

# Custom paths (updates bundle.directory and bundle.output_directory in changelog.yml)
docs-builder changelog init --changelog-dir ./my-changelogs --bundles-dir ./my-bundles

Files changed

File	Change
src/tooling/docs-builder/docs-builder.csproj	Embed changelog.example.yml as a resource
src/tooling/docs-builder/Commands/ChangelogCommand.cs	Add init subcommand, GetPathForConfig helper, update help text
docs/cli/release/changelog-init.md	New command documentation
docs/cli/release/index.md	Add link to changelog init
docs/_docset.yml	Add changelog-init.md to table of contents
docs/contribute/changelog.md	Mention changelog init in configuration section

Generative AI disclosure

1. Did you use a generative AI (GenAI) tool to assist in creating this contribution?

• Yes
• No

5. If you answered "Yes" to the previous question, please specify the tool(s) and model(s) used (e.g., Google Gemini, OpenAI ChatGPT-4, etc.).

Tool(s) and model(s) used: composer 1.5, claude-4.6-opus-high

[github-actions]

🔍 Preview links for changed docs

• docs/cli/release/changelog-init.md
• docs/cli/release/index.md
• docs/contribute/changelog.md