docs: standardize README badges across all repos

[devops-thiago]

• Align badge order: CI → language → framework → license → Codecov → Sonar Quality Gate → Sonar Coverage → OTel → Docker → Docker Hub → Docker Pulls
• Rename SonarCloud coverage badge label to 'Sonar Coverage' for clarity (was 'Coverage', clashing with Codecov)
• Use shields.io github/actions/workflow for CI badges (consistent style and avoids encoding issues)
• Use shields.io github/license for license badges (dynamic, no hardcoded spdx text)
• Use shields.io codecov for coverage badges (consistent style)

What

Why

Changes

Test Plan

• Unit tests pass (make test / npm run test:unit / dotnet test / poetry run pytest)
• Linter / formatter clean (make fmt-check / npm run lint / dotnet format --verify-no-changes)
• Manual smoke test against local docker compose up
• Integration tests pass (if DB available)
• No new high-severity vulnerabilities (npm audit --audit-level=high / trivy)

Checklist

• Commit messages follow Conventional Commits (type(scope): description)
• No debug output, commented-out code, or TODOs left behind
• Equivalent change applied to all relevant repos (if cross-repo feature)
• Docs / README updated if behaviour or setup changed

[Copilot]

Pull request overview

This PR standardizes the README badge section by reordering badges to a consistent order, replacing several badge providers with shields.io equivalents, renaming the SonarCloud coverage badge to avoid a naming clash with Codecov, and removing a verbose "Project Status" section in favor of a clean badge-only header.

Changes:

• Replaced/reordered all README badges to follow the documented order: CI → language → license → Codecov → Sonar Quality Gate → Sonar Coverage → OTel → Docker → Docker Hub → Docker Pulls
• Switched CI badge from GitHub workflow SVG URL to shields.io github/actions/workflow style, license badge to shields.io github/license, and Codecov badge to shields.io codecov/c
• Removed the "Project Status" checklist section and added new Docker Hub version and Docker Pulls badges

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.97%. Comparing base (a0a5704) to head (b74f7b8).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #72   +/-   ##
=======================================
  Coverage   89.97%   89.97%           
=======================================
  Files           7        7           
  Lines         459      459           
  Branches       61       61           
=======================================
  Hits          413      413           
  Misses         30       30           
  Partials       16       16           

Flag	Coverage Δ
unittests	89.97% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 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.