[Docs] Add developer tutorial for pre-commit and formal issue templates

[keli-wen]

Problem

The repository's README currently lacks a standard developer setup tutorial, specifically instructions on setting up and using pre-commit hooks. Additionally, there are no formal issue templates to guide contributors when opening bug reports or feature requests.

Proposed Changes

• Add a Dev Setup section in the README with:

  • Steps to install and configure pre-commit hooks
  • Instructions for running hooks locally and in CI
  • Example commands and troubleshooting tips

• Introduce ISSUE_TEMPLATEs in .github/ISSUE_TEMPLATE/:

  • bug_report.md for bug reporting
  • feature_request.md for feature suggestions
  • Include appropriate labels, checklists, and structured sections in each template

Benefits

• Standardizes development workflows across the project
• Reduces onboarding friction for new contributors
• Ensures consistency and completeness in issue reports