Ⅰ. Motivation

This pull request introduces an automated Helm chart version update script to streamline release processes. The key motivations are:

1. Eliminate manual errors in Helm chart versioning and image tagging
2. Enforce branch naming conventions for semantic versioning
3. Automate synchronization between Git branches, Helm charts, and container images
4. Reduce release overhead by replacing error-prone manual updates with a single command

Ⅱ. Modifications

1. Added new script: rbg/tools/release/version-update.sh
2. Core functionality:
   • Auto-detects semantic versions from Git branch names (0.5.0, v1.2.3-rc.1)
   • Updates Helm chart fields:

     Chart.yaml:
     - version: 0.5.0        # From branch name
     - appVersion: 0.5.0-abc123  # From image tag (without 'v')
     
     values.yaml:
     - image.tag: v0.5.0-abc123  # From Makefile VERSION + Git SHA

   • Validates:
     • Branch naming conventions
     • Makefile variable presence
     • File existence
3. Path handling:
   • Works from any directory in repository
   • Correctly resolves paths:

     CHARTS_DIR="deploy/helm"  # Relative to repo root

Ⅲ. Does this pull request fix one issue?

NONE

Ⅳ. List the added test cases

No tests added because:

1. This is a release utility script run manually
2. Contains built-in validations and error checks:
   • Branch format validation
   • Makefile variable checks
   • File existence verification
3. Outputs clear error messages for all failure cases
4. Will be validated during actual release processes

Note: Manual testing has been performed with:

• Valid branches (0.5.0, v1.2.3-rc1)