feat!: Expose Assets-owned controller/service methods through messenger

[GuillaumeRx]

Explanation

Exposes all the public methods other than internally used methods of the assets-owned controllers/services through the messenger.

This also refactors how actions are defined and bound to the messenger using registerMethodActionHandlers and MESSENGER_EXPOSED_METHODS.

The generate-method-action-type script was used to generate the action types.

This is a breaking change in the AccountTrackerController package as some of the action type names changed but none of the underlying signatures changed.

References

• Fixes https://consensyssoftware.atlassian.net/browse/WPC-405
• Related to https://consensyssoftware.atlassian.net/browse/WPC-361

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

Medium Risk
Medium risk due to widespread refactor of messenger action typing/registration across assets and network enablement controllers, including breaking TypeScript type renames that can impact downstream builds. Runtime behavior should be mostly unchanged, but incorrect MESSENGER_EXPOSED_METHODS lists could unintentionally expose/omit actions.

Overview
Standardizes how multiple controllers expose public methods via the messenger by switching from per-action registerActionHandler code to registerMethodActionHandlers with explicit MESSENGER_EXPOSED_METHODS allowlists.

Adds auto-generated *-method-action-types.ts files (and new generate-method-action-types scripts/tsx dev dependency) and updates exports/imports accordingly, including newly exposed actions such as AssetsContractController:getStakedBalanceForChain, MultichainAssetsRatesController:fetchHistoricalPricesForAsset, and several TokenDetectionController/TokensController methods.

Introduces breaking renames of messenger action type aliases (not action strings) for AccountTrackerController and NetworkEnablementController, and updates related tests/changelogs to match.

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