chore(card-data): refresh MTGJSON token & subtype catalogs

[matthewevans]

Automated refresh of the engine-embedded card-data catalogs from the latest MTGJSON publish.

• crates/engine/data/known-tokens.toml — named-token catalog (tokens-gen)
• crates/engine/data/oracle-subtypes.json — creature-subtype vocabulary (oracle-gen --write-subtypes)
• crates/engine/data/mtgjson-vintage — vintage write-gate stamp

Generated by PHASE_REFRESH_MTGJSON=1 scripts/gen-card-data.sh; the vintage gate only promotes catalogs when the MTGJSON input date advances, so this diff reflects a genuine upstream data change. Review, then let it auto-merge once CI is green.

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📥 Commits

Reviewing files that changed from the base of the PR and between 313f82c and cfd83e4.

📒 Files selected for processing (1)

• crates/engine/data/mtgjson-vintage

🚧 Files skipped from review as they are similar to previous changes (1)

• crates/engine/data/mtgjson-vintage

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📝 Walkthrough

Walkthrough

The vintage data date changes from 2026-08-16 to 2026-08-18.

Changes

MTGJSON vintage refresh

Layer / File(s)	Summary
Update vintage data date crates/engine/data/mtgjson-vintage	The vintage data date advances to August 18, 2026.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Merge Risk: ⚪ Minimal · up to cfd83

This is a localized generated card-data refresh with no actionable merge-blocking risk remaining after normal checks and review.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly summarizes the primary catalog refresh and matches the stated objectives.

✨ Finishing Touches 💡 1

🛠️ Fix failing CI checks 💡

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore/refresh-card-data-catalogs

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[github-actions]

Generated for head 18e966cd7436fd4ced1cc59c45a47b5f052e3942.

Parse changes introduced by this PR

✓ No card-parse changes detected.