2014 spell catalog CS: transcribe PHB'14 shared / multi-list spells (3+ class lists), authored once

[Sandersland]

Content slice of epic #1517 — the "not class-specific" bucket. Depends on F1 #1710 + F2 #1711. Parallel with the per-class slices.

Why

Many spells sit on 3+ class lists (Detect Magic, Dispel Magic, Cure Wounds, Revivify, Lesser Restoration, …). Authoring them inside each class's slice would duplicate the Spell row and risk divergent transcriptions. Per the epic's row-ownership rule, every PHB'14 spell on 3+ class lists is authored here exactly once, with membership fanned out to all its classes.

Scope

• Author EDITION_2014 Spell rows for every PHB'14 spell that appears on 3+ class lists (levels 0–9), full PHB'14 text + a PHB'14 p.NN citation on each.
• Fan out SpellClass membership for each across every class it appears on in PHB'14.
• Structured mechanics where the engine acts (effectKind / dice / save / concentration / upcast) per PHB'14.
• Extend the seed guards / spell-fork-reseed coverage for the new rows; seed helper fns cyclomatic ≤4.

Acceptance criteria

• Each shared spell resolves for every class on its PHB'14 list at GET /api/spells?class=<c>&edition=EDITION_2014, authored exactly once (no per-class duplicate row).
• Each row cites PHB'14 p.NN; both suites + seed guards green.

Relevant code

backend/prisma/seed/spells.ts, SpellClass (F2 #1711), backend/src/routes/catalog/spells.ts, PHB'14 spell lists.

Dependencies

Part of #1517. Depends on F1 #1710 + F2 #1711. The per-class slices reference this for their 3+-list spells (membership only, no re-authoring).

[Sandersland]

Execution decision (2026-08-04): no on-disk PHB'14 source exists, so 2014 spell text is transcribed from the builder model's PHB'14 knowledge — and every content PR gets a mandatory Opus rules-accuracy verify pass cross-checking each spell's level / school / casting time / range / duration / components / concentration / damage / save against PHB'14 before merge. CI-green is necessary but NOT sufficient. Each row carries a PHB'14 p.NN citation. Author into this slice's own per-class seed module (F1 #1710 layout). Content slices run one at a time (owner direction), not fanned out.