feat(points): implement robust points and XP calculation system

[dotandev]

Implements a comprehensive points and XP calculation system with non-linear level progression, streak bonuses, and daily quest integration.

Changes

Puzzles Module:

Updated base points for puzzle difficulties (Beginner: 10, Intermediate: 25, Advanced: 50, Expert: 100).

Progress Module:

Refactored ProgressCalculationProvider to use the formula: basePoints * (1 + timeBonusMultiplier) * accuracyMultiplier.
Implemented level progression logic with thresholds (L1: 0, L2: 1000, L3: 2500, L4: 5000, L5: 10000+).
Integrated streak bonuses (+10% for 3+ days, +25% for 7+ days).
Added 50 XP bonus for completion of the 10th question in a daily quest.
Fixed UserProgress entity type inconsistencies for userId, puzzleId, and categoryId to match UUID format.

Users Module:
Added helper methods getXpNeededForNextLevel() and getXpProgressPercentage() to User entity for front-end consumption.

Verification

Build: Successfully ran npm --workspace backend run build.
Lint: Passed npm --workspace backend run lint with no errors in modified files.
Logic: Verified multiplier logic and level threshold transitions manually against requirements.

Impact
Enables engaging gamification mechanics, rewarding users for consistency, speed, and accuracy.

closes #175

[phertyameen]

Genius of you to to convert those id numbers to string.You did the code a favour