Resolve engine cores from crates.io

Author: tartakovsky

.worklogs/2026-07-10-160658-core-registry-locks.md

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+# Core Registry Locks
+
+## Summary
+
+Refreshed the TOML and text engine-core lockfiles after `aqc-file-engine-core 0.4.1` became available from crates.io.
+
+## Decisions Made
+
+- Published dependencies are resolved from crates.io for release packaging.
+- Local patches remain confined to the isolated repository gate.
+
+## Key Files
+
+- `packages/file-types/toml/aqc-toml-engine-core/Cargo.lock`
+- `packages/file-types/text/aqc-text-engine-core/Cargo.lock`
+
+## Next Steps
+
+- Publish both engine-core crates.
+- Refresh and publish the concrete file-engine tier.