Release 1245.0.0

[abretonc7s]

Explanation

Publishes @metamask/perps-controller@16.2.0. No other workspace packages are version-bumped.

This is a minor, not a major. Expanding PerpsErrorCode with the margin-mode codes is additive; clients should handle unknown codes in a catch-all rather than an exhaustive map. Optional OrderParams.marginMode and MarketInfo.marginMode keep existing callers on the isolated-leverage path.

Also includes the HyperLiquid TWAP terminal-record fix and Lighter account/market/log fixes.

References

• feat(perps): support explicit HyperLiquid margin mode #10136
• fix(perps-controller): keep the terminal TWAP record when a completing fill ties lastUpdated #10122
• fix(perps): stabilize Lighter account loading #10119
• fix(perps): handle inactive Lighter market metadata #10110

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
This PR only bumps versions and edits changelog/README/JSDoc; trading behavior ships in the referenced feature PRs, not in this diff.

Overview
Cuts release 1245.0.0, publishing @metamask/perps-controller@16.2.0 (monorepo root version bump only; no other workspace packages change).

The diff is mostly release bookkeeping: package.json versions, a new [16.2.0] changelog section (margin-mode error codes and HyperLiquid marginMode API, TWAP terminal-record fix, Lighter account/market/logging fixes — already merged via linked PRs), and consumer guidance updates.

Policy clarification: new PerpsErrorCode values (including the four margin-mode codes) are documented as additive minors, not breaking — the changelog drops the prior BREAKING wording. README.md adds an Error codes section and perpsErrorCodes.ts JSDoc now tells clients to use a catch-all for unknown codes instead of an exhaustive Record<PerpsErrorCode, …>.

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[metamask-ci]

✅ No changelog changes needed.