Consolidate streaks.js and streaks-advanced.js

[vayungodara]

Problem

There are two streak utility files (lib/streaks.js and lib/streaks-advanced.js) with overlapping logic. This creates maintenance burden and risk of divergent behavior.

What to change

• Audit both files to identify overlapping functions
• Merge into a single lib/streaks.js with clearly named exports
• Update all imports across the codebase
• Ensure no behavior changes (add tests if possible)

Files

• lib/streaks.js
• lib/streaks-advanced.js
• All files importing from either

Impact

Reduces code duplication, easier to maintain.

Effort

~1 hour

[vayungodara]

Closing as duplicate — kept the more detailed version.

[vayungodara]

Closing as duplicate of #16