docs(universal): Add links to external implementations

[thumbrise]

Summary by CodeRabbit

• Documentation
  • Added conspicuous stale-content warnings to key documentation to alert readers that information may be outdated.
  • Appended a section with direct links to relevant repositories for the universal schema and HTTP vendor implementations.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: bff851f4-f27e-4b3c-8e9a-0fb3ef83e804

📥 Commits

Reviewing files that changed from the base of the PR and between d019be4 and a56bfd4.

📒 Files selected for processing (5)

• README.md
• docs/idea.md
• docs/index.md
• universal/README.md
• universal/ROADMAP.md

📝 Walkthrough

Walkthrough

This PR adds collapsible staleness warning blocks to universal/README.md and universal/ROADMAP.md. It also appends an "Appended" section to universal/README.md that lists repository links for universal schema and HTTP universal vendor implementations.

Changes

Documentation updates

Layer / File(s)	Summary
Add staleness warnings and repository references universal/README.md, universal/ROADMAP.md	Both files receive collapsible warning blocks at the top stating content may be stale. README adds an "Appended" section linking to universal schema and HTTP vendor implementation repositories.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

A little rabbit notes: these docs might age,
A folded warning sits upon the page.
An appended table points the curious way,
To moved implementations, bright as day.
🐇✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'docs(universal): Add links to external implementations' accurately describes the main changes: adding links to external implementations in the universal documentation, with an 'Appended' section containing GitHub links to moved implementations.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch universal-docs-implementations-links

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[coderabbitai]

Actionable comments posted: 1

🧹 Nitpick comments (2)

universal/README.md (1)

2-7: 💤 Low value

Style: Improve phrasing in warning text.

The phrase "Look at Appended section" would read more naturally as "See the Appended section" or "Refer to the Appended section below."

✨ Suggested improvement

-This content may be stale. Look at Appended section
+This content may be stale. See the Appended section below.

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@universal/README.md` around lines 2 - 7, Update the warning text inside the
details/summary block by replacing "Look at Appended section" with a more
natural phrase such as "See the Appended section below" or "Refer to the
Appended section below" (modify the details/summary content where the exact
phrase "Look at Appended section" appears).

universal/ROADMAP.md (1)

3-9: 💤 Low value

Optional: Extra blank line after warning block.

There's an extra blank line (line 9) after the closing </details> tag. This may be intentional spacing, but it's inconsistent with typical markdown formatting around HTML blocks.

🎨 Optional formatting adjustment

 </details>
-
 
 What we plan to build next inside `universal/`. Not a contract. A direction.

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@universal/ROADMAP.md` around lines 3 - 9, Remove the extra blank line
following the closing </details> HTML block so the two <details> sections are
consistently spaced; edit the ROADMAP.md content to collapse the stray blank
line after the first </details> and ensure the second <details> block starts
directly on the next line (keep the <details> and <summary> tags intact).

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@universal/README.md`:
- Line 31: Replace the incorrect preposition in the README phrase "moved on
personal repos" with "moved to personal repos"; locate the exact string "moved
on personal repos" in the README.md and update it to "moved to personal repos"
so the sentence reads correctly.

---

Nitpick comments:
In `@universal/README.md`:
- Around line 2-7: Update the warning text inside the details/summary block by
replacing "Look at Appended section" with a more natural phrase such as "See the
Appended section below" or "Refer to the Appended section below" (modify the
details/summary content where the exact phrase "Look at Appended section"
appears).

In `@universal/ROADMAP.md`:
- Around line 3-9: Remove the extra blank line following the closing </details>
HTML block so the two <details> sections are consistently spaced; edit the
ROADMAP.md content to collapse the stray blank line after the first </details>
and ensure the second <details> block starts directly on the next line (keep the
<details> and <summary> tags intact).

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: ffbe8dcd-c729-4aa8-b48c-c4e326e99fe8

📥 Commits

Reviewing files that changed from the base of the PR and between 4175055 and 49441c7.

📒 Files selected for processing (2)

• universal/README.md
• universal/ROADMAP.md