Repo hygiene with issue and PR templates with Dependabot

[blindzero]

Goal

Reduce maintainer overhead and keep repo hygiene consistent by standardizing contribution inputs and automating routine dependency updates (especially CI/GitHub Actions).

Scope

Templates

• Ensure issue templates are present and up to date (Issue Forms / templates under .github/ISSUE_TEMPLATE/).
• Ensure a pull request template exists and guides contributors toward:
  • clear problem/solution description
  • tests run
  • docs/examples impact
  • breaking change notes

Dependabot

• Add .github/dependabot.yml for:
  • package-ecosystem: github-actions
  • schedule: weekly
  • limit open PRs (e.g., 5) to avoid noise
  • (optional) group GitHub Actions updates if desired

Security

• Document the expected repository setting:
  • Dependabot alerts enabled
  • Dependabot security updates enabled (where applicable)

Out of scope

• CODEOWNERS (not needed while single maintainer; can be revisited later)

Acceptance Criteria

• Contributors have clear templates to follow (issues + PRs).
• A Dependabot configuration exists and creates GitHub Actions update PRs on the defined schedule.
• Dependabot alerts/security updates are enabled (or documented as required repo settings).
• No CODEOWNERS requirement for completion.