Add TailoredApps.Shared.WebApi production defaults package

[nieprzecietny]

Summary

New shared package TailoredApps.Shared.WebApi that wires production-ready defaults into an ASP.NET Core Web API through a single call, together with its hand-maintained NuGet publish step in release.yml.

builder.AddTailoredWebApiDefaults();
// ...
app.MapTailoredWebApiDefaults();

What it configures

• Metrics / Tracing / Logging — OpenTelemetry for ASP.NET Core, HttpClient and the .NET runtime, exported over OTLP
• Health checks — readiness /health (all checks) and liveness /alive (live-tagged), with a safe JSON writer
• HTTP clients — standard resilience handler (retry, circuit breaker, timeouts) + service discovery on every factory client

All features bind from the WebApiDefaults configuration section and are individually toggleable. OTLP is the default exporter (stable); a metrics hook is provided for opting into a Prometheus scrape endpoint (whose ASP.NET Core exporter is still beta-only).

Packaging / CI

• Multi-targets net8.0 / net9.0 / net10.0; resilience & service-discovery packages pinned per TFM (8.x / 9.x / 10.x), OpenTelemetry at 1.x
• release.yml: dedicated, hand-maintained dotnet nuget push step for the new package (no migration to a glob push)
• Registered in the solution; the new tests run automatically in PR CI

Tests

10 xUnit tests (registrations, config binding + precedence, disable toggles, endpoint mapping, null guards). Full solution builds with 0 errors; all tests pass locally.

Publish preconditions (outside this PR)

• Tag a commit that includes this PR with v* to trigger release.yml
• Ensure NUGET_API_KEY may push the new id TailoredApps.Shared.WebApi — the first push of a new id needs a glob/new-package-scoped key, and the push step is continue-on-error, so a 403 would be silent

🤖 Generated with Claude Code

[codecov]

Codecov Report

❌ Patch coverage is 75.64103% with 38 lines in your changes missing coverage. Please review.
✅ Project coverage is 57.43%. Comparing base (29a65a1) to head (d7e79c8).

Files with missing lines	Patch %	Lines
...d.WebApi/HealthChecks/HealthCheckResponseWriter.cs	12.50%	21 Missing ⚠️
....WebApi/Observability/OpenTelemetryRegistration.cs	85.18%	2 Missing and 6 partials ⚠️
...ed.WebApi/HealthChecks/HealthCheckRequestFilter.cs	0.00%	5 Missing ⚠️
...bApi/HealthChecks/HealthCheckEndpointExtensions.cs	78.57%	2 Missing and 1 partial ⚠️
...oredApps.Shared.WebApi/WebApiDefaultsExtensions.cs	94.11%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #44      +/-   ##
==========================================
+ Coverage   54.62%   57.43%   +2.80%     
==========================================
  Files         101      112      +11     
  Lines        3405     3033     -372     
  Branches      294      324      +30     
==========================================
- Hits         1860     1742     -118     
+ Misses       1464     1202     -262     
- Partials       81       89       +8     

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[nieprzecietny]

ok