feat: sentry web api

[buenaflor]

Description

Allows type safe API access to underlying JS SDK

In this PR only init and close is implemented, more will follow in the next PR

The creating of the binding and the initialization is gated / opt-in through the enableSentryJs flag`

💡 Motivation and Context

PR #2 of JS SDK Integration

💚 How did you test it?

Unit test, Integration Test, Manual Test

📝 Checklist

• I reviewed submitted code
• I added tests to verify changes
• No new PII added or SDK only sends newly added PII if sendDefaultPii is enabled
• I updated the docs if needed
• All tests passing
• No breaking changes

🔮 Next steps

Sending envelope

#skip-changelog

[github-actions]

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

Generated by 🚫 dangerJS against 8815b03

[codecov]

Codecov Report

Attention: Patch coverage is 72.00000% with 7 lines in your changes missing coverage. Please review.

Project coverage is 86.90%. Comparing base (be08651) to head (8815b03).
Report is 69 commits behind head on feat/js-sdk-integration.

Files with missing lines	Patch %	Lines
dart/lib/src/platform_checker.dart	0.00%	7 Missing ⚠️

Additional details and impacted files

@@                     Coverage Diff                      @@
##           feat/js-sdk-integration    #2489       +/-   ##
============================================================
+ Coverage                    70.98%   86.90%   +15.92%     
============================================================
  Files                           17      265      +248     
  Lines                          579     9418     +8839     
============================================================
+ Hits                           411     8185     +7774     
- Misses                         168     1233     +1065     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[github-actions]

🚨 Detected changes in high risk code 🚨

High-risk code has higher potential to break the SDK and may be hard to test. To prevent severe bugs, apply the rollout process for releasing such changes and be extra careful when changing and reviewing these files:

• flutter/lib/src/screenshot/recorder.dart
• flutter/lib/src/screenshot/widget_filter.dart

[denrase]

Just the one conditional import where we import the same file sprang into my eyes.