// ABOUTME: Shared database logic for PostgreSQL and SQLite implementations
// ABOUTME: Eliminates duplication by extracting common business logic
//
// SPDX-License-Identifier: MIT OR Apache-2.0
// Copyright (c) 2025 Pierre Fitness Intelligence
/// Enum conversion utilities (`UserTier`, `UserStatus`, `TaskStatus`, etc.)
pub mod enums;
/// Input validation logic (email, tenant ownership, expiration, scopes)
pub mod validation;
/// Model ↔ SQL row conversion helpers (row parsing, struct construction)
pub mod mappers;
/// Encryption/decryption utilities for OAuth tokens and sensitive data
pub mod encryption;
/// Query parameter binding helpers (reduce repetitive `.bind()` chains)
pub mod builders;
/// Transaction retry patterns (deadlock handling, exponential backoff)
pub mod transactions;
