[HWGTB-P3-02] Content: "Canon Formation" thematic journey (12 stops)

[CraigBuckmaster]

Parent epic: #1536

Context

First of two journeys in the "How We Got The Bible" bundle. Covers OT canon formation through Reformation canon decisions.

File

• content/meta/journeys/thematic/canon-formation.json — NEW (schema matches existing thematic journeys; pattern-match from content/meta/journeys/thematic/holy-week-day-by-day.json)

Journey top-level schema

Must include all of these top-level fields (matches holy-week-day-by-day.json exactly):

{
 "id": "canon-formation",
 "journey_type": "thematic",
 "title": "Canon Formation — How the Bible Came Together",
 "subtitle": "From oral tradition to Trent",
 "description": "<1–2 sentences, shown on journey preview cards>",
 "lens_id": "historical",
 "depth": "long",
 "sort_order": <next available integer — check max in existing thematic journeys>,
 "person_id": null,
 "concept_id": null,
 "era": "post-exilic-through-reformation",
 "hero_image_url": null,
 "tags": [
 {"type": "theme", "id": "canon"},
 {"type": "theme", "id": "scripture-authority"}
 ],
 "stops": [ ... ]
}

Note on depth: accepted enum is short | medium | long. There is no deep. This is a long journey → use long.

Note on journey-to-journey linking: there is no top-level linked_journey_id field. Cross-journey continuation happens on the final stop via its linked_journey_id + linked_journey_intro fields. Set the final stop's linked_journey_id to text-and-translation (HWGTB-P4-01).

12 stops (in order)

1. OT oral tradition & early writing — Torah composition, prophets as authorities
2. Ezra and the closing of the Hebrew canon — Post-exilic stabilization, Tanakh structure
3. The Septuagint — 3rd–1st c. BC translation; broader canon; NT usage
4. Second Temple literature — What Jewish communities were reading alongside Scripture
5. Jamnia reconsidered — What actually happened (and didn't) around 90 AD
6. NT authorship & early circulation — Pauline letters collected, Gospels written
7. The Muratorian Fragment — Earliest surviving Western NT canon list (c. 170 AD)
8. Athanasius' Festal Letter 39 (367 AD) — First 27-book NT list; why this matters
9. Hippo and Carthage (393, 397 AD) — Regional councils, not the ecumenical decrees sometimes claimed
10. Jerome and the Vulgate — Canon judgments in prefaces; Hebrew vs. Greek source debate
11. Eastern / Western divergence — How Ethiopian, Orthodox, and Catholic canons grew apart
12. Reformation & Trent — Protestant return to the Hebrew canon; Trent's response

Per-stop requirements

Each stop must include all keys present on holy-week-day-by-day.json stops:
stop_order, stop_type, label, ref, book_id, chapter_num, verse_start, verse_end, development, what_changes, linked_journey_id, linked_journey_intro, bridge_to_next.

• development field: 300–500 words per stop
• what_changes field: 80–120 words per stop
• bridge_to_next: hook into the next stop (null on final stop)
• Where applicable, ref points to a biblical passage (e.g., Jude 14 for Second Temple stop, 2 Tim 3:16 for authority stop); else null
• book_id, chapter_num, verse_start, verse_end: populate when ref is set, else null
• Final stop (12): set linked_journey_id: "text-and-translation" and linked_journey_intro: "<1–2 sentences teeing up the manuscript/translation journey>"
• All other stops: linked_journey_id: null, linked_journey_intro: null

Editorial

• Honest, scholarly, evangelical-framed but fair to all traditions
• Explicitly debunk conspiracy framing where readers may have encountered it
• Celebrate what's true (books were cited, read, debated, preserved in traditions) without embracing what's false ("books were hidden to control you")

Acceptance criteria

• 12 stops authored with full schema (all stop-level keys present, nulled when inapplicable)
• All required top-level fields populated (including description, sort_order, era, tags)
• depth is "long" (not "deep")
• Final stop's linked_journey_id = "text-and-translation"
• python _tools/schema_validator.py passes
• python _tools/build_sqlite.py succeeds; journey appears in SQLite journeys table
• Journey reachable from Explore hero card (HWGTB-P2-04) and from ExtraBiblicalDetailScreen via related_journey_ids
• Cross-links from extrabiblical entries get wired in HWGTB-P1-09 (not in this PR)

Depends on

HWGTB-P0-01 (scholar voices), HWGTB-P1-04 (so stops can reference extrabiblical IDs in body text)

Blocks

HWGTB-P4-01 (second journey links back here)