Preload the FEP-6757 context

[dahlia]

Resolve https://w3id.org/fep/6757 from a bundled copy so Codeberg Pages outages no longer prevent incoming documents from being parsed. The bundled context matches upstream exactly to avoid changing JSON-LD expansion or Object Integrity Proof verification.

The regression test checks that license and preferredLicense expand to IRI references without fetching the context when the endpoint is configured to return 502.

Fixes #1211.

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🧰 Additional context used

📚 Code guidelines (1)

CONTRIBUTING.md — configured

📝 Walkthrough

Walkthrough

The default document loader now resolves https://w3id.org/fep/6757 from a bundled JSON-LD context. Tests verify the license and preferredLicense mappings and confirm that the context URL is not requested.

Changes

FEP-6757 Context Preload

Layer / File(s)	Summary
Bundle, register, and verify the context packages/vocab-runtime/src/contexts/fep-6757.json, packages/vocab-runtime/src/contexts.ts, packages/vocab-runtime/src/docloader.ts, packages/vocab-runtime/src/docloader.test.ts, changes.d/vocab-runtime/fep-6757-context.md, CHANGES.md	The bundled context maps license and preferredLicense to their FEP-6757 IRIs. The preload map registers the context URL, and tests verify local resolution and JSON-LD expansion. Documentation and changelog entries record the addition.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Bug fix

Suggested reviewers: sij411

Merge Risk: 🔵 Low · up to a824a

The confirmed issue is limited to the generated changelog: remove its hand-edited unreleased entry and retain the fragment. The bundled context passes the local offline-expansion test, though its exact upstream match could not be confirmed.

🚥 Pre-merge checks | ✅ 4 | ❓ 1

❌ Failed checks (1 inconclusive)

Check name	Status	Explanation	Resolution
Linked Issues check	❓ Inconclusive	[#1211] The bundled context maps license to http://purl.org/dc/terms/license and preferredLicense to https://w3id.org/fep/6757#preferredLicense, with @type: @id for both. Registration and th…	Provide test results for the Deno, Node.js, and Bun suites to establish that all required runtimes pass.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly summarizes the main change: preloading the FEP-6757 context.
Description check	✅ Passed	The description explains that the bundled context enables local resolution during outages and describes the regression test for JSON-LD expansion without a network fetch.
Out of Scope Changes check	✅ Passed	The bundled JSON, registration, regression test, loader documentation, and changelog entry all support the [#1211] objective. The reviewed change summary shows no unrelated changes or implementation o…
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 3…

Full details: Linked Issues check

Explanation

[#1211] The bundled context maps license to http://purl.org/dc/terms/license and preferredLicense to https://w3id.org/fep/6757#preferredLicense, with @type: @id for both. Registration and the regression test cover local loading during a 502 response, expansion to the required IRIs, and zero requests to the context URL. The added documentation and changelog describe this behavior. Test source is available, but no results establish that the Deno, Node.js, and Bun suites pass.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ All tests successful. No failed tests found.

Files with missing lines	Coverage Δ
packages/vocab-runtime/src/contexts.ts	100.00% <100.00%> (ø)
packages/vocab-runtime/src/docloader.ts	96.06% <ø> (ø)

... and 1 file with indirect coverage changes

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Actionable comments posted: 1

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• 🪄 Fix CodeRabbit comments on this PR

🤖 Prompt to fix review comments

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Inline comments:
Review comments at @CHANGES.md:
- Line 22: Remove the complete generated @fedify/vocab-runtime entry from
CHANGES.md and retain its existing Sacho change fragment; do not duplicate the
entry in the generated unreleased section.

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ℹ️ Review info

⚙️ Run configuration

• Configuration used: Repository UI
• Review profile: ASSERTIVE
• Plan: Advanced
• Run ID: 3baae9bf-8185-4abd-bbaa-70fd5513387a

📥 Commits

Reviewing files that changed from the base of the PR and between bf0ebff and a824ac9.

📒 Files selected for processing (6)

• CHANGES.md
• changes.d/vocab-runtime/fep-6757-context.md
• packages/vocab-runtime/src/contexts.ts
• packages/vocab-runtime/src/contexts/fep-6757.json
• packages/vocab-runtime/src/docloader.test.ts
• packages/vocab-runtime/src/docloader.ts

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