changelog(2026-08-02_02): Jina learns two metadata profiles

Ship note for #78 — source-kind routing (structured vs opengraph) so academic
sources keep their date + publisher instead of the operator hand-filling them.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018UYTYu4MAFZ7iyr2VTo2kq

Author: mpstaton

changelog/2026-08-02_02_Jina-Learns-Two-Metadata-Profiles-Academic-Sources-Stop-Losing-Their-Dates.md

@@ -0,0 +1,49 @@
+---
+title: "Jina learns two metadata profiles — academic sources stop losing their dates and publishers"
+lede: "The metadata parser was reading only blog/OpenGraph keys, so scholarly articles — whose data hides under Highwire/Dublin-Core/PRISM tags — arrived with no date and a weak publisher, and the operator hand-filled them. Now it detects the source KIND (academic-paper / article / company-landing / web-page), routes to the right parser profile, and resolves every field across all conventions. A Springer article now fills its authors, publisher, and date automatically."
+date_created: 2026-08-02
+date_modified: 2026-08-02
+publish: true
+authors:
+  - Michael Staton
+augmented_with:
+  - Claude Code on Claude Opus 4.8
+files_changed:
+  - services/content-ingest/src/jina.ts
+  - services/content-ingest/test/jina-extract.test.ts
+tags:
+  - Augment-It
+  - Content-Ingest
+  - Jina
+  - Metadata
+  - Bug-Fix
+---
+
+# Jina learns two metadata profiles
+
+Jina always returned rich metadata for every source — we just weren't reading
+it. The parser looked for blog/OpenGraph keys (`article:published_time`,
+`og:site_name`), which scholarly pages don't set: they carry their metadata
+under Highwire, Dublin-Core, and PRISM tags (`citation_*`, `dc.*`, `prism.*`).
+So academic sources lost their publish date and got a weak publisher, and you
+filled them in by hand.
+
+Now `jina.ts` **detects the source kind** and **routes to one of two parser
+profiles**:
+
+- **`structured`** — `citation_*` / `dc.*` / `prism.*`, for scholarly articles
+  and anything with a DOI.
+- **`opengraph`** — `og:*` / `article:*` / generic, for blogs, news, company
+  landing pages, and plain web pages.
+
+Each field resolves across an ordered list of aliases spanning every
+convention, so a value missing under one still resolves under another. Every
+source now records its detected `source_kind` and `parser_profile`, and the
+extractor accepts a `forceProfile` override — the foundation for a "re-parse
+as…" button when detection is wrong (fast-follow, #79).
+
+A live Springer article that used to arrive dateless now fills its four
+authors, `Springer US`, and `2023-05-27` automatically.
+
+Verified with a vitest suite whose academic fixture is the real metadata
+captured live from that article. Reaches augment.didi.sh on the next redeploy.