chore: sync memory [2026-02-21]

Author: craigbidenbot[bot]

memory/2026-02-21.md

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+# 2026-02-21
+
+## Proactive Work — Resource Registry Bug Fix
+
+### Research
+- Scanned recent PRs across 6 repos: the-stables heavy on domain migrations + stablephone/stableemail features, poncho on streaming/thinking traces/agentcash metadata, x402scan CORS fixes
+- Open issues: x402scan #623 (non-string query params not displaying, reported by Sam), #633 (docs fix), poncho has ~10 open issues, CraigClaw #23 (assigned to rsproule)
+
+### Action Taken
+- Fixed x402scan #623: `expandFields()` in `lib/x402/schema.ts` was dropping number and boolean primitive values from query param definitions
+- Root cause: only `typeof raw === 'string'` and `typeof raw === 'object'` handled; numbers/booleans hit the `continue` fallthrough
+- Also fixed array query value serialization in executor form
+- PR #640: https://github.com/Merit-Systems/x402scan/pull/640