📜 Scribe: Updated Technical Architecture Doc

[google-labs-jules]

🔄 Drift Detected: Recent code refactors extracted several structural boundaries into shared layers (discordAdapters, realmSlug, dungeonScoreTypes, and seasonPairs wire-validator), but ARCHITECTURE.md was not updated to reflect these mapping changes.

📄 Docs Updated:

• ARCHITECTURE.md: Added rows to the "Where Key Behaviors Live" table corresponding to the new extractions.
• .jules/scribe.md: Documented the architectural quirk showing why shared utility boundaries must be actively mapped.

💎 Note for Showcase: No new pages were created, so no links need to be appended to the README.

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PR created automatically by Jules for task 4164460403044157798 started by @TytaniumDev

[google-labs-jules]

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