infra: add Copilot PR lifecycle + auto-approve + CI workflows

[kayodebristol]

Summary

Onboard FinancialAdvisor into the praxis-business managed repo ecosystem with full lifecycle automation.

Requirements

• .github/workflows/copilot-pr-lifecycle.yml — auto-merge Copilot PRs after review
• .github/workflows/auto-approve-copilot-runs.yml — approve action_required runs
• .github/workflows/ci.yml — lint, type-check, test, build on every PR
• Add to praxis-business cross-repo manager tier 1 list
• Add to QA system (plures/qa) test suites

Acceptance

• Copilot PRs auto-merge after approved review
• CI runs on every PR
• Repo appears on praxis-business dashboard
• QA runs against this repo

[kayodebristol]

@copilot Please implement this issue.