Add GitHub issue templates

[karansinghgit]

Summary

• Add a bug report issue form with repro steps, environment, model, recording mode, and logs
• Add a feature request issue form focused on workflow and proposed behavior
• Disable blank issues so new reports are standardized

Verification

• git diff --check
• ruby -e 'require "yaml"; ARGV.each { |path| YAML.load_file(path); puts "ok #{path}" }' .github/ISSUE_TEMPLATE/bug_report.yml .github/ISSUE_TEMPLATE/feature_request.yml .github/ISSUE_TEMPLATE/config.yml

Created as a draft so you can review the form wording before enabling it through merge.