Stable version with pg extension and stable sdk's for typescript and dart

[jamals86]

This pull request introduces improvements to the Dart client SDK for KalamDB, focusing on more robust authentication handling during WebSocket reconnections and fine-tuning reconnection parameters for mobile environments. It also includes dependency updates, version bumps, and test enhancements to ensure these changes are reliable.

Dart SDK: Authentication & Reconnection Improvements

• Added logic to detect authentication-related errors during manual WebSocket reconnection in KalamClient, so that the client will refresh credentials and retry once if an auth error is detected. This makes reconnects more reliable, especially when tokens expire. [1] [2]
• Introduced helper method _isLikelyReconnectAuthError to identify auth-related failures by matching error messages against common authentication keywords.

Connection Options: Mobile-Friendly Reconnection

• Set lower initial and maximum reconnect delays for Dart clients to better support frequent resume/reconnect scenarios typical in mobile apps. These are now explicitly set in build_dart_connection_options and validated by new tests. [1] [2] [3] [4] [5]

Testing Enhancements

• Expanded test coverage to verify the new reconnection and authentication logic, including scenarios for JWT reuse and forced auth refresh on reconnect failures. Mock API was extended to simulate connection failures and auth errors. [1] [2] [3] [4]

Dependency and Version Updates

• Updated flutter_rust_bridge dependency to ^2.12.0 and bumped Dart SDK and Rust crate versions to release candidate versions (0.4.2-rc.1/0.4.2-rc1). [1] [2] [3]

Build and WASM Packaging

• Updated WASM build instructions to use the --no-opt flag with wasm-pack for more predictable output, and minor changes to generated JS bindings for compatibility. [1] [2] [3] [4] [5] [6]