fix(toolbar): prevent duplicate command execution on repeated interactions

[pedrokohler]

Context

Make toolbar interactions idempotent and pure

• Bug: Each click mutated buttonProps.commands and re-added option commands, so commands duplicated across interactions.
• Fix: Do not mutate. Build a fresh commands array per interaction via buildButtonCommands, then pass computed props to recordInteraction.

Also:

• adding tests so there are no regressions
• fixing and exporting a few types

Changes & Results

Before:

before.mp4

After:

after.mp4

Testing

Checklist

PR

• [] My Pull Request title is descriptive, accurate and follows the
  semantic-release format and guidelines.

Code

• [] My code has been well-documented (function documentation, inline comments,
  etc.)

Public Documentation Updates

• [] The documentation page has been updated as necessary for any public API
  additions or removals.

Tested Environment

• [] OS:
• [] Node version:
• [] Browser:

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