docs: publish public credibility package (demo, benchmark, architecture diagram, case study)

[felipeofdev-ai]

Motivation

• Provide public-facing artifacts that demonstrate production readiness and technical seniority (live demo link, benchmark, architecture diagram and a technical case study).
• Make it easy to publish reproducible load-test results and dashboard screenshots to improve recruiter/technical signal.
• Centralize operational onboarding for monitoring, local webhook testing and deployment so reviewers can validate and demo the system quickly.

Description

• Added a README block and created docs/BENCHMARK_PUBLIC.md, docs/ARCHITECTURE_DIAGRAM.md, docs/CASE_STUDY_TECHNICAL.md and docs/architecture.svg to expose demo, benchmark and architecture artifacts.
• Added scripts/generate_benchmark_summary.py to produce a public benchmark summary from Locust CSV outputs and scripts/run_load_test.sh + loadtest/locustfile.py to run and persist load tests.
• Added monitoring bootstrap with docker-compose.monitoring.yml, Grafana provisioning/dashboards, Prometheus/Loki configs, and a simple Grafana dashboard JSON to simplify screenshotting and inspection.
• Added utility and ops scripts (scripts/deploy_production.sh, scripts/link_trusthire_ecossistema.sh, scripts/stripe_setup_live.sh, scripts/stripe_webhook_local_test.sh), updated CI (.github/workflows/ci.yml) and .gitignore to support the new artifacts and flows.

Testing

• Ran the full test suite with pytest -q and all tests passed: 24 passed.
• Performed a compile sanity check with python -m compileall scripts docs api main.py which completed successfully.
• Ran python scripts/generate_benchmark_summary.py to verify generation of docs/BENCHMARK_PUBLIC.md (writes a helpful fallback when no Locust results are present).

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Codex Task