chore: add copilot-instructions.md

iAiFy enterprise governance — standardized Copilot instructions.

Author: ashsolei

.github/copilot-instructions.md

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+# Copilot Instructions — openai-agents-python
+
+## Project
+
+- **Name**: openai-agents-python
+- **Organization**: AiFeatures
+- **Enterprise**: iAiFy
+- **Language**: Python
+- **Description**: A lightweight, powerful framework for multi-agent workflows
+
+## Fork Status
+
+This is a forked repository. Do not contribute back upstream.
+Local customizations are preserved in the main branch.
+Upstream sync is managed via Ai-road-4-You/fork-sync.
+
+## Conventions
+
+- Use kebab-case for file and directory names
+- Use conventional commits (feat:, fix:, chore:, docs:, refactor:, test:)
+- All PRs require review before merge
+- Branch from main, merge back to main
+- All file names in kebab-case
+
+## Shared Infrastructure
+
+- Reusable workflows: Ai-road-4-You/enterprise-ci-cd@v1
+- Composite actions: Ai-road-4-You/github-actions@v1
+- Governance standards: Ai-road-4-You/governance
+
+## Quality Standards
+
+- Run lint and tests before submitting PRs
+- Keep dependencies updated via Dependabot
+- No hardcoded secrets — use GitHub Secrets or environment variables
+- Follow OWASP Top 10 security practices