Release/794.0.0

[oscarwroche]

Explanation

References

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've communicated my changes to consumers by updating changelogs for packages I've changed
• I've introduced breaking changes in this PR and have prepared draft pull requests for clients and consumer packages to resolve them

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Note

Low Risk
Version/changelog and dependency-range updates only; no runtime logic changes in this PR.

Overview
Bumps the monorepo release version to 794.0.0 and publishes @metamask/assets-controllers 99.3.0 (changelog entry + version bump).

Updates downstream consumers (@metamask/bridge-controller and @metamask/transaction-pay-controller) to depend on @metamask/assets-controllers@^99.3.0, with corresponding yarn.lock updates.

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