feat: Allow setting native SDK name in manifest

[bitsandfoxes]

📜 Description

Add support for setting the native SDK name via AndroidManifest metadata.

This adds a new manifest key io.sentry.ndk.sdk-name that allows hybrid SDKs (like Unity) to configure the native SDK name for NDK crashes during build-time initialization.

💡 Motivation and Context

When using the Sentry Unity SDK on Android, native C/C++ crashes captured by sentry-native are reported with SDK name sentry.native.android instead of sentry.native.android.unity.

This happens because:

1. The prebuilt sentry-native-ndk AAR is compiled with the default SDK name
2. There was no way to override the native SDK name via AndroidManifest for build-time initialization
3. The existing io.sentry.sdk.name only sets the Java SDK name, not the native SDK name

The nativeSdkName can be set at runtime via SentryAndroidOptions.setNativeSdkName(), but for build-time initialization via manifest, there was no corresponding key.

💚 How did you test it?

• Added unit tests for ManifestMetadataReader:
  • applyMetadata reads nativeSdkName to options - verifies the value is read from manifest
  • applyMetadata reads nativeSdkName and keeps default - verifies null default is preserved

📝 Checklist

• I added GH Issue ID & Linear ID
• I added tests to verify the changes.
• No new PII added or SDK only sends newly added PII if sendDefaultPII is enabled.
• I updated the docs if needed.
• I updated the wizard if needed.
• Review from the native team if needed.
• No breaking change or entry added to the changelog.
• No breaking change for hybrid SDKs or communicated to hybrid SDKs.

🔮 Next steps

• Update Unity SDK to set io.sentry.ndk.sdk-name=sentry.native.android.unity in AndroidManifest during build

[github-actions]

	Messages
📖	Do not forget to update Sentry-docs with your feature once the pull request gets approved.

Generated by 🚫 dangerJS against 765c76e

[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	335.37 ms	395.47 ms	60.10 ms
Size	1.58 MiB	2.20 MiB	635.34 KiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
f634d01	375.06 ms	420.04 ms	44.98 ms
d5a29b6	298.62 ms	391.78 ms	93.16 ms
fcec2f2	314.96 ms	373.66 ms	58.70 ms
bbc35bb	324.88 ms	425.73 ms	100.85 ms
ee747ae	405.43 ms	485.70 ms	80.28 ms
d15471f	369.38 ms	459.08 ms	89.70 ms
ee747ae	396.82 ms	441.67 ms	44.86 ms
fc5ccaf	276.52 ms	370.46 ms	93.93 ms
bbc35bb	298.53 ms	372.17 ms	73.64 ms
d15471f	310.66 ms	368.19 ms	57.53 ms

App size

Revision	Plain	With Sentry	Diff
f634d01	1.58 MiB	2.10 MiB	533.40 KiB
d5a29b6	1.58 MiB	2.12 MiB	549.37 KiB
fcec2f2	1.58 MiB	2.12 MiB	551.50 KiB
bbc35bb	1.58 MiB	2.12 MiB	553.01 KiB
ee747ae	1.58 MiB	2.10 MiB	530.95 KiB
d15471f	1.58 MiB	2.13 MiB	559.54 KiB
ee747ae	1.58 MiB	2.10 MiB	530.95 KiB
fc5ccaf	1.58 MiB	2.13 MiB	557.54 KiB
bbc35bb	1.58 MiB	2.12 MiB	553.01 KiB
d15471f	1.58 MiB	2.13 MiB	559.54 KiB

Previous results on branch: feat/native-sdk-name-manifest

Startup times

Revision	Plain	With Sentry	Diff
6ea83e7	363.80 ms	430.24 ms	66.44 ms
1e749b4	326.17 ms	409.79 ms	83.62 ms
bf3d32c	329.42 ms	391.49 ms	62.07 ms

App size

Revision	Plain	With Sentry	Diff
6ea83e7	1.58 MiB	2.20 MiB	635.34 KiB
1e749b4	1.58 MiB	2.20 MiB	633.77 KiB
bf3d32c	1.58 MiB	2.20 MiB	635.34 KiB