[Tech Debt] Fix SQLite naming inconsistency in providers/repository

[sonikro]

Problem

All repository implementations in packages/providers/src/repository/ use the prefix SQlite (lowercase 'l'):

SQliteServerRepository.ts
SQliteUserCreditsRepository.ts
SQliteGuildParametersRepository.ts
SQliteServerActivityRepository.ts
SQliteServerStatusMetricsRepository.ts
SQliteUserRepository.ts
SQliteCreditOrdersRepository.ts
SQlitePlayerConnectionHistoryRepository.ts

But one file uses the correct SQLite casing:

SQLiteReportRepository.ts  ← correct

The correct product name is SQLite (capital L). This inconsistency makes grepping and navigation confusing.

Fix

1. Rename all SQlite* files to SQLite*
2. Rename all class names from SQlite* to SQLite*
3. Update all import references throughout the codebase (barrel index.ts and all consumers)