Updates: PR#2 Enhancements to Core Statements (fixes #45)

[joe-replin]

Update

• Added xAPI statement tracking for navigation drawer interactions, resource access, glossary terms, LMS connection errors, and language preferences
• Created five new statement model classes: InteractedStatementModel, AccessedStatementModel, ReceivedStatementModel, PreferredStatementModel, and LanguageStatementModel
• Added three new xAPI verbs: "interacted", "accessed", and "received"
• Replaced all _.extend() calls with Object.assign() for ES6 compliance
• Updated README and example.json with new configuration options (all default to false)

Testing

1. Enable _navbar tracking in config.json and verify statements are sent when opening/closing navigation drawer
2. Enable _resources tracking and verify statements are sent when accessing resources (requires adapt-contrib-resources plugin)
3. Enable _glossary tracking and verify statements are sent when viewing glossary terms (requires adapt-contrib-glossary plugin)
4. Enable _connectionErrors tracking and verify statements are sent for LMS connection errors (requires adapt-contrib-spoor plugin)
5. Enable _languageOnCourseStart tracking and verify statement is sent on course initialization
6. Test with each tracking option independently enabled/disabled
7. Confirm backward compatibility - all new features are opt-in

Configuration

All new tracking options are disabled by default in config.json:

• _navbar - requires adapt-contrib-pageLevelProgress
• _resources - requires adapt-contrib-resources
• _glossary - requires adapt-contrib-glossary
• _connectionErrors - requires adapt-contrib-spoor

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