peyaj's Auth [Paper/Velocity]

Fixes

• Fixed database error handling across all auth commands so database connection drops fail safely instead of allowing unauthenticated access.
• Fixed database upsert queries to properly save offline UUID bindings during account updates.
• Fixed two-factor setup to keep secrets strictly local rather than sending them to third-party QR generators.
• Fixed Argon2 password verification to read algorithm parameters directly from stored hashes.
• Fixed LuckPerms permission cloning between offline and online accounts by using public API interfaces.
• Fixed console logging for sensitive commands to strip passwords cleanly without causing logger recursion crashes.
• Fixed Bedrock and Java name collisions to protect registered Java accounts from unauthenticated Bedrock takeovers.
• Fixed placeholder requests so they read from local memory caches rather than performing blocking database reads on the main thread.

Improvements

• Improved Folia support (it was half baked last time, not really reliable)
• Improved database lookup performance with case-insensitive indexing and automatic migration for existing SQLite databases.
• Added startup warnings when the auth bridge secret is left empty.
• Improved console logging to show clear success messages only when players successfully log in or register.