fix(cupertino_http): non-apple build

[brianquinlan]

• Fixes [cupertino_http] 3.0.0 Building Android faild #1925 by not building on non-Apple platforms
• Support latest semver-major versions of native asset packages
• Prepare to release 3.0.1

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[github-actions]

Package publishing

Package	Version	Status	Publish tag (post-merge)
package:cronet_http	1.9.0-wip	WIP (no publish necessary)
package:cupertino_http	3.0.1	ready to publish	cupertino_http-v3.0.1
package:http	1.6.1-wip	WIP (no publish necessary)
package:http2	3.0.1-wip	WIP (no publish necessary)
package:http_multi_server	3.2.2	already published at pub.dev
package:http_parser	4.1.3-wip	WIP (no publish necessary)
package:http_profile	0.1.1-wip	WIP (no publish necessary)
package:ok_http	0.1.1-wip	WIP (no publish necessary)
package:web_socket	1.0.1	already published at pub.dev
package:web_socket_channel	3.0.4-wip	WIP (no publish necessary)

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[github-actions]

PR Health

API leaks ✔️

The following packages contain symbols visible in the public API, but not exported by the library. Export these symbols or remove them from your publicly visible API.

Package	Leaked API symbol	Leaking sources

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Unused Dependencies ⚠️

Package	Status
cupertino_http	❗ Show Issues These packages are used outside lib/ but are not dev_dependencies: * flutter * integration_test These packages are only used outside lib/ and should be downgraded to dev_dependencies: * code_assets * hooks * logging * native_toolchain_c These packages may be unused, or you may be using assets from these packages: * dart_flutter_team_lints Failed to update packages.

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License Headers ✔️

// Copyright (c) 2026, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

Files
no missing headers

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Unrelated files missing license headers

Files
pkgs/cupertino_http/example/example.dart
pkgs/http/example/main.dart
pkgs/http_multi_server/test/cert.dart

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Changelog Entry ✔️

Package	Changed Files

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Breaking changes ⚠️

Package	Change	Current Version	New Version	Needed Version	Looking good?
cupertino_http	Non-Breaking	3.0.0	3.0.1	3.1.0 Got "3.0.1" expected >= "3.1.0" (non-breaking changes)	⚠️

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Coverage ⚠️

File	Coverage
pkgs/cupertino_http/hook/build.dart	💔 Not covered

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