Landing - streaks

[ftdgoodluck]

User story

As a contributor, I want to see visual representations of my contribution streaks, so I can be motivated to consistently contribute and see how my regular contributions impact my standings

Acceptance criteria

• [ ] The system should automatically track the frequency and quality of pull requests submitted by each contributor.
• [ ] Track different types of streaks, such as
• [ ] "one pull request every 7 days"
• [ ] "one pull request with a score of 8 or above every 4 weeks".
• [ ] "keeping average score over X for Y days" (skip for MVP)
• [ ] Display streaks on the contributor’s profile page and optionally on the leaderboard with clear, engaging visuals such as progress bars, heatmaps, or streak icons.
• [ ] Use intuitive graphics to represent different streak types and milestones reached, such as color-coded symbols for different levels of achievement.
• [ ] Ensure that streak data is updated at least once per 10 minutes as new pull requests are scored and merged.

Bot part

• [ ] Modify the bot’s responses to include messages about current streaks when interacting with contributors. For example, after scoring a pull request, include a note like "You've extended your weekly high-score streak to 3 weeks!"
• [ ] Provide motivational feedback through bot messages when contributors are close to achieving a new streak milestone or risk breaking an existing streak.

[ftdgoodluck]

need a review on the functionality @botezatunear @frol @akorchyn

[ftdgoodluck]

Idea - save streak mechanics (maybe post-MVP)