chore(release): prepare v0.9.1

[melonamin]

Summary

Prepare v0.9.1 from the merged MSSQL GO batch fix (#69). Align the Rust and npm workspace versions, rebuild the bundled WASM binary, and move the release notes out of Unreleased.

The React workspace remains private. The flowscope-wasm crate is internal and its browser artifact ships inside @pondpilot/flowscope-core.

Validation

• just pre-release and just check passed.
• Built @pondpilot/flowscope-core and @pondpilot/flowscope-react.
• Real Chromium/WASM integration passed with two MSSQL statements.
• Installed the packed 0.9.1 npm tarball under Node 20; the issue Release and verify MSSQL GO batch support in the published npm/WASM package #68 LF and CRLF reproductions both returned two statements and zero issues.

After merge, tag v0.9.1 to trigger the Rust crate and core npm publish workflow, then create the GitHub release. Verify the published npm package before closing #68.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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