docs(readme): align structure and update prose

[nanotaboada]

Summary

• Renamed Docker → Containers
• Moved Architecture Decisions section to immediately after Architecture (was at end of document)
• Rewrote Architecture prose: injection framing, removed academic UML references, trimmed subsections
• Unified Legal wording

Test plan

• README renders correctly on GitHub
• Table of Contents anchors resolve correctly
• Mermaid diagram renders

---

This change is 

[coderabbitai]

Warning

Rate limit exceeded

@nanotaboada has exceeded the limit for the number of commits that can be reviewed per hour. Please wait 22 minutes and 37 seconds before requesting another review.

⌛ How to resolve this issue?

After the wait time has elapsed, a review can be triggered using the @coderabbitai review command as a PR comment. Alternatively, push new commits to this PR.

We recommend that you space out your commits to avoid hitting the rate limit.

🚦 How do rate limits work?

CodeRabbit enforces hourly rate limits for each developer per organization.

Our paid plans have higher rate limits than the trial, open-source and free plans. In all cases, we re-allow further reviews after a brief timeout.

Please see our FAQ for further information.

ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: ae83c99e-8266-4fca-b51e-103fb8497405

📥 Commits

Reviewing files that changed from the base of the PR and between 0810c52 and 6e207d6.

📒 Files selected for processing (1)

• README.md

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch docs/readme-review

• 🛠️ sync documentation: Commit on current branch
• 🛠️ sync documentation: Create PR
• 🛠️ enforce http error handling: Commit on current branch
• 🛠️ enforce http error handling: Create PR
• 🛠️ idiomatic review: Commit on current branch
• 🛠️ idiomatic review: Create PR
• 🛠️ verify api contract: Commit on current branch
• 🛠️ verify api contract: Create PR

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[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 100.00%. Comparing base (f775727) to head (6e207d6).
⚠️ Report is 3 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##            master      #537   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            3         3           
  Lines          113       113           
=========================================
  Hits           113       113           

Components	Coverage Δ
Services	100.00% <ø> (ø)
Routes	100.00% <ø> (ø)

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.