ci: update commitlint and development instructions

[SiegeSailor]

Summary

Update commitlint.

Changes

• Update commitlint to v1.13.3 in continuous-delivery.yml
• Add badges
• Update documents

Checklist

• Use a Conventional Commits style title
• Add corresponding reviewers and assignees
• Add relevant labels
• Mention relevant issues in Summary using Keywords

[Copilot]

Pull request overview

Updates CI commit message linting and adds visibility badges to project documentation.

Changes:

• Bump opensource-nepal/commitlint GitHub Action version in the Continuous Delivery workflow.
• Add a Continuous Delivery workflow status badge to README.md.
• Add a Conventional Commits badge to .github/CONTRIBUTING.md.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
README.md	Adds a GitHub Actions “Continuous Delivery” status badge to the project README.
.github/workflows/continuous-delivery.yml	Updates the opensource-nepal/commitlint action version used for commit message validation.
.github/CONTRIBUTING.md	Adds a Conventional Commits badge near the top of the contributing guide.

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[Copilot]

Pull request overview

Updates repository metadata and CI configuration around commit message/title validation.

Changes:

• Add a GitHub Actions “Continuous Delivery” badge to README.md.
• Add a “Conventional Commits” badge to .github/CONTRIBUTING.md.
• Update the opensource-nepal/commitlint GitHub Action version reference in the CI workflow.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
README.md	Adds CI status badge for the Continuous Delivery workflow.
.github/workflows/continuous-delivery.yml	Changes commitlint action reference used for validating commit messages.
.github/CONTRIBUTING.md	Adds Conventional Commits badge to contributing guide.

---

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[Copilot]

Pull request overview

This PR updates commit-message linting tooling and related contributor-facing documentation to better align CI and local development workflows.

Changes:

• Bump commitlint to 1.13.3 (Poetry lockfile + CI install) and update the commitlint GitHub Action reference.
• Add CI/best-practice style badges to README.md and .github/CONTRIBUTING.md.
• Update local dev instructions (e.g., PATH uses $HOME, and pre-commit install is run via Poetry).

Reviewed changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated 1 comment.

File	Description
README.md	Adds CI badge; makes PATH example portable by using $HOME.
poetry.lock	Locks commitlint to 1.13.3.
.github/workflows/continuous-delivery.yml	Pins commitlint install and action to 1.13.3; ensures release job only runs on push.
.github/CONTRIBUTING.md	Adds Conventional Commits badge; updates pre-commit install instruction to run via Poetry.

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