fix: resolve HOT_STREAK badge flickering by excluding today's incomplete data

[Yashaswini-K-P]

Description

This PR fixes an issue where the HOT_STREAK badge would prematurely disappear or flicker on the current calendar day. Previously, the streak calculation included today's incomplete data in its evaluation, causing the badge to be withheld until a problem was solved. By adjusting the history slice to look at the last 8 days excluding the current incomplete day, the badge now remains correctly visible throughout the day for users with an active streak.

Linked Issue

Fixes #269

Changes Made

• Modified loadBadges function logic.
• Updated the history slice window from (-8) to (-9, -1) to exclude today's incomplete data from the HOT_STREAK calculation.

Type of Change

• Bug fix
• New feature
• UI/Visual update
• Documentation update
• Refactor

Testing

• Tested locally (using real user history and verified badge persistence)
• Tested on mobile viewport (if applicable)
• No console errors introduced

Checklist

• My code follows the project's coding style
• I have formatted my code locally by running npx prettier --write . before submitting
• I am submitting my PR from a dedicated feature/* branch, not the main branch
• I have performed a self-review of my code
• My changes generate no new warnings or errors
• I have updated documentation if required
• I have linked the relevant issue

Screenshots / Screen Recording

N/A

[github-actions]

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[jagdish-15]

I noticed one issue with the current approach.

By using history.slice(-9, -1), today's snapshot is excluded entirely. This means that if a user completes their 7th consecutive day today, today's progress won't be considered and the badge won't be awarded until tomorrow's snapshot is generated.

I'd prefer an approach that still includes today's snapshot while ensuring an incomplete current day doesn't incorrectly break an existing streak. That handles both edge cases correctly.