feat: deprecate NodeApp

[florian-lefebvre]

Changes

• Deprecates NodeApp in favor of App + utilities: createRequest() and writeResponse()
• Deprecates loadManifest() and loadApp(). These are unused and were forgotten
• Reorganizes the app/* related entrypoints to make clearer what is exported, and have more control (allowed to spot loadManifest(), loadApp(), and a few more things not tackled in this PR)
• All usages have been updated, except for the node adapter which will have a dedicated PR: feat(node): convert to new adapter api #15418

Testing

Updated

Docs

• Changesets
• feat: deprecate NodeApp docs#13271

[changeset-bot]

🦋 Changeset detected

Latest commit: 331f382

The changes in this PR will be included in the next version bump.

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[codspeed-hq]

Merging this PR will not alter performance

✅ 9 untouched benchmarks

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_{Comparing feat/deprecate-node-app (331f382) with main (7038f07)¹}

Footnotes

1. No successful run was found on main (020660e) during the generation of this report, so 7038f07 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩