feat: properly emit final chunk of audio data in android

[techgaun]

Description

This moves accumulatedAudioData as a class variable and emitting data before thread is cleaned up. This seems to fix the issue. Also, removed the final read code in favor of using accumulatedAudioData

Closes #292

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Performance improvement
• Refactoring

Architecture Decision

Test-Driven Development Checklist

Note: TDD is recommended but not required. The testing framework is newly available, and test coverage is being improved incrementally.

Pre-Implementation (for new features - recommended)

• Architecture document created/updated
• API design reviewed
• Test plan created with test cases
• Tests written before implementation (when feasible)

Implementation

• TypeScript interfaces/types defined
• iOS implementation complete
• Android implementation complete
• Web implementation complete (if applicable)

Testing

• Unit tests included (recommended)
• iOS platform tests pass
• Android platform tests pass
• Integration tests included (when applicable)
• Cross-platform consistency verified
• Test coverage adequate for the change
• Edge cases and error scenarios considered
• Performance impact measured (if applicable)

Test Evidence

# Test output (if applicable)
./scripts/run_tests.sh all
...

Documentation

• API documentation updated
• Usage examples added (if new feature)
• CHANGELOG.md updated
• README updated (if needed)

Breaking Changes

Related Issues

Checklist

• My code follows the project's style guidelines
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings
• Tests are included (recommended for new features and bug fixes)
• Existing tests pass locally with my changes
• Any dependent changes have been merged and published

Screenshots/Videos

Additional Notes

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud