Add auto mode based on semver commits

[Kira2K]

Auto Mode Feature Implementation

Overview

This PR implements an auto mode feature for Changesets that automatically generates changesets based on conventional commit analysis.

Key Features

• New --auto flag for changeset add command
• Integrates with @semantic-release/commit-analyzer using conventionalcommits preset
• Handles breaking changes detection and scope-based bump logic for monorepos
• Configurable via maxCommits, preset, and custom analyzer options
• No breaking changes, full compatibility with existing logic

Technical Implementation

• packages/cli/src/commands/add/auto-mode.ts - Main auto-mode logic
• packages/cli/src/commands/add/semanticAnalyzer.ts - Commit analysis integration

Configuration & Usage

Configure via "auto": { "maxCommits": 100, "preset": "conventionalcommits" } in .changeset/config.json. (standart path)
Usage: npx changeset add --auto

Fixes issues

#1504 & #1698

[changeset-bot]

⚠️ No Changeset found

Latest commit: 52ebe83

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[Kira2K]

The failing tests and Typecheck are the same as at current state of "main" branch, so it seems to be unrelated to the feature I added