added skills and project.md for better ai support

[AlexisChoupault]

No description provided.

[gemini-code-assist]

Code Review

This pull request introduces a comprehensive set of AI skill files and project documentation for the Eventide Flutter plugin, covering modern Dart features, testing fundamentals, Effective Dart guidelines, native standards (Swift/Kotlin), and plugin interop. The feedback identifies several technical inaccuracies regarding Dart versioning and experimental features (Null-Aware Elements and Dot Shorthands) that are not yet in stable Dart, as well as a few typographical errors across the new documentation files.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.68%. Comparing base (c7153ed) to head (7cc1e2f).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #110   +/-   ##
=======================================
  Coverage   94.68%   94.68%           
=======================================
  Files          17       17           
  Lines        2955     2955           
=======================================
  Hits         2798     2798           
  Misses        157      157           

Flag	Coverage Δ
unittests	94.68% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

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

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.