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.

Summary by CodeRabbit

• Chores
  • Updated the vintage data through August 20, 2026.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

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Review profile: CHILL

Plan: Pro Plus

Run ID: ff1f8ca7-c812-4a2f-b841-0f03ee26cfaf

📥 Commits

Reviewing files that changed from the base of the PR and between 72388d1 and c652cf9.

📒 Files selected for processing (1)

• crates/engine/data/mtgjson-vintage

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📝 Walkthrough

Walkthrough

The vintage data date changes from 2026-08-19 to 2026-08-20.

Changes

Vintage data refresh

Layer / File(s)	Summary
Update vintage data date crates/engine/data/mtgjson-vintage	The recorded vintage data date advances to 2026-08-20.

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

Merge Risk: ⚪ Minimal · up to c652c

The current change is limited to refreshing the MTGJSON vintage stamp, with no identified correctness or merge-readiness issue; no actionable merge-blocking risk remains beyond normal checks.

Possibly related PRs

• phase-rs/phase#7516: Updates the MTGJSON vintage date in the same file.
• phase-rs/phase#7486: Updates the same MTGJSON vintage data date stamp.
• phase-rs/phase#7400: Updates the MTGJSON vintage date stamp.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the token and subtype catalog refresh stated in the PR objectives.
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.

✨ Finishing Touches

🧪 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 c652cf983aa5aa7157aac3210886f1aef80f9d56.

Parse changes introduced by this PR

✓ No card-parse changes detected.