fix CI: bump matrix wait timeout 60s -> 180s for slow Django boot on Windows

fix CI perf: reduce request counts 5x, add pytest-timeout

fix Litestar: serialize msgspec.Struct via msgspec.json.encode (orjson lambda fails on slots)

add unified test suite: contract, flow, performance across all 4 services

fix Robyn: use headers.get() instead of .items() for request_id

fix Robyn: remove orjson pin (installed transitively via robyn==0.63)

fix CI: use forward slashes in bash path

fix CI: use 8.3 short path for Git Bash to avoid space splitting

fix CI: use Git Bash explicitly on Windows self-hosted runner

fix Robyn: add missing orjson dependency

fix Litestar: return Response consistently in get_users

fix ruff: remove unused imports, split multi-imports

fix poetry.lock and bench_all.py for all frameworks

add 3 new endpoints: pagination, analytics, optimized

add microservice patterns: Health Check, Structured Logging, API Gateway

fair benchmark: isolated runs, warmup, 3-run median

CI: add test summary and response details to smoke tests

fix CI: add shell: bash for self-hosted Windows runner

CI/CD: use self-hosted runner for Docker smoke tests

move workflow to .github/workflows only