Add JSON-LD API endpoints for Glosses and Manuscripts

[Copilot]

Implements Linked Data endpoints to expose Glosses and Manuscripts as proper JSON-LD, satisfying the MVP requirement that "every Gloss and Witness must have a URI that resolves to a JSON-LD representation."

Changes

API Routes (src/app/api/)

• GET /api/glosses - Returns ItemList of all glosses
• GET /api/glosses/[id] - Returns individual gloss
• GET /api/manuscripts - Returns ItemList of all manuscripts
• GET /api/manuscripts/[id] - Returns individual manuscript

JSON-LD Conversion (src/lib/jsonld.ts)

• Maps processed data to schema.org vocabulary (Comment for glosses, Manuscript for manuscripts)
• Custom gog: namespace for domain properties (canonicalReference, originLocal, etc.)
• Proper @context, @type, @id annotations with Content-Type: application/ld+json

Configuration (next.config.mjs)

• Removed output: 'export' to enable API routes (incompatible with static export)
• Routes marked dynamic = 'force-dynamic' for fresh data on each request

Example Response

{
  "@context": {
    "@vocab": "http://schema.org/",
    "gog": "https://galleryofglosses.org/terms/"
  },
  "@type": "Comment",
  "@id": "https://store.rerum.io/v1/id/610c54de...",
  "name": "Gloss title",
  "text": "Gloss content",
  "inLanguage": "la",
  "gog:canonicalReference": "Matthew 5:1",
  "keywords": ["theme1", "theme2"]
}

Documentation

Added API.md documenting endpoints, vocabularies, and usage examples.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• fonts.googleapis.com
  • Triggering command: /usr/local/bin/node /usr/local/bin/node /home/REDACTED/work/Gallery-of-Glosses/Gallery-of-Glosses/node_modules/next/dist/compiled/jest-worker/processChild.js (dns block)
• store.rerum.io
  • Triggering command: /usr/bin/curl curl -s REDACTED (dns block)
  • Triggering command: /usr/local/bin/node /usr/local/bin/node /home/REDACTED/work/Gallery-of-Glosses/Gallery-of-Glosses/node_modules/next/dist/server/lib/start-server.js (dns block)
• tinymatt.rerum.io
  • Triggering command: /usr/local/bin/node /usr/local/bin/node /home/REDACTED/work/Gallery-of-Glosses/Gallery-of-Glosses/node_modules/next/dist/server/lib/start-server.js (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Serve Linked Data</issue_title>
<issue_description></issue_description>

Comments on the Issue (you are @copilot in this section)

@cubap https://github.com/CenterForDigitalHumanities/Gallery-of-Glosses/wiki/Access-and-Permissions @cubap just to be sure that we have an endpoint for all the Manuscripts and Glosses at a minimum that results in a proper JSON-LD

• Fixes Serve Linked Data #22

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