chore(main): release 25.4.0

[github-actions]

🤖 I have created a release beep boop

25.4.0 (2025-04-08)

Features

• site: add giscus (#2329) (83f1f36)
• site: upgrade to App Router and Nextjs 15.2 (#2328) (1a66c42)
• studio: add actor-core studio (#2283) (7fd26d9)
• studio: reconnect with inspect (#2333) (28fda52)

Bug Fixes

• guard: add dedicated websocket proxy handler (#2321) (bd718cf)
• guard: fix websocket proxying (#2314) (cbeeb86)
• pegboard: configure crypto for isolate-v8-runner (#2310) (c164e55)
• site: deployment (#2331) (8e95ac6)
• site: display of code blocks (#2323) (0b9d562)
• site: invalid actors import leaking to site (#2330) (c57a557)
• studio: change layout and make console autoscroll (#2334) (cb8bc18)
• studio: minor studio fixes (#2306) (a5f41c5)

Documentation

• document game server use case (#2298) (11862b4)

Chores

• add dev edge to justfile (#2319) (86bf47d)
• api-actor: handle no edge regions gracefully (#2318) (97a0110)
• api-actor: increase default rate limits (#2311) (8574269)
• disable building hub in docker container (#2317) (9a2ac65)
• fix docs links in actor list (#2315) (9a0eea2)
• tweak wording for studio entrypoint (#2308) (2326b4c)
• udpate guard websocket tests to include message sending (#2320) (e81d2ba)
• update lockfile (d8a5d93)
• updated guide to print servers to json (#2316) (2e061d1)

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[greptile-apps]

PR Summary

This PR bumps Rivet's release version to 25.3.2 and adds documentation for the game server use case.

• Updated /.release-please-manifest.json to reflect version 25.3.2.
• Modified /CHANGELOG.md to include the game server documentation note (#2298).

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[github-actions]

🤖 Release is at https://github.com/rivet-gg/rivet/releases/tag/v25.4.0 🌻