* chore: add PR template, issue templates, and contribution policy Drive-by feature PRs are becoming a problem. This adds guardrails: - PR template with type selection, checklist, and AI disclosure - Bug report issue template (structured YAML form) - Issue config that redirects features to Discussions and disables blank issues - PR compliance workflow that enforces template completion and requires a Discussion link for feature PRs - Contribution policy in CONTRIBUTING.md (acceptance tiers, AI PR rules) - Agent-facing rules in AGENTS.md (follow the template, no bulk changes) * fornat
387 B
387 B