refactor(core): rename socket server send method

[chenjiahan]

Summary

• rename the internal SocketServer.sockWrite method to sendMessage to better match its behavior of sending structured server messages to matching HMR clients
• update the internal call sites to use the new name
• switch non-legacy e2e cases to prefer environment.web.hot.send, while keeping the dedicated sockWrite compatibility coverage in place

Related Links

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[Copilot]

Pull request overview

This PR refactors the core dev-server websocket implementation by renaming the internal SocketServer.sockWrite method to sendMessage (and its low-level sender to sendRawMessage), then updates internal call sites and modernizes non-legacy e2e coverage to use the environment-scoped HMR send API.

Changes:

• Rename internal SocketServer.sockWrite → sendMessage and send → sendRawMessage, plus update internal usages.
• Switch relevant internal triggers (watch files, dev-server hot sender, assets middleware) to call sendMessage.
• Update non-legacy e2e tests to prefer server.environments.web.hot.send(...) while keeping explicit sockWrite compatibility tests elsewhere.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
packages/core/src/server/watchFiles.ts	Update reload-on-change to use socketServer.sendMessage.
packages/core/src/server/socketServer.ts	Rename internal socket broadcast API to sendMessage and raw sender to sendRawMessage.
packages/core/src/server/devServer.ts	Route environment hot send implementation through socketServer.sendMessage.
packages/core/src/server/assets-middleware/index.ts	Use sendMessage for HTML-triggered full reload.
e2e/cases/server/setup-middlewares/index.test.ts	Prefer server.environments.web.hot.send('full-reload') in server.setup test.
e2e/cases/javascript-api/server-custom-message/index.test.ts	Prefer server.environments.web.hot.send('custom', ...) for custom HMR messages.

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[gemini-code-assist]

Code Review

This pull request renames the sockWrite method to sendMessage and the send method to sendRawMessage within the SocketServer class, updating all references across the core packages and E2E tests. Feedback was provided to optimize the sendMessage function by deferring JSON serialization until it is confirmed that active sockets are available to receive the message.