Pure functions for creating audit log entries.

This namespace contains CORE (pure) functions for audit trail management.
In FC/IS architecture, this is the CORE that:
- Contains pure business logic for audit entry creation
- No side effects - returns data structures only
- All I/O is delegated to shell layer (persistence)

Key FC/IS principles:
- Pure functions only - deterministic, no side effects
- Returns data that shell layer will persist
- Business rules for what gets audited and how

Functional Core - Pure authentication business logic.

This namespace contains ONLY pure functions for authentication:
- Credential validation logic
- Authentication decision making
- Login attempt analysis
- Account lockout logic

All functions are pure and deterministic - no I/O operations.
Password hashing and token operations are handled in the shell layer.

Functional Core - Pure MFA business logic.

This namespace contains ONLY pure functions for MFA:
- MFA decision logic (when to require MFA)
- Backup code validation logic
- MFA setup preparation
- MFA status evaluation

All functions are pure and deterministic - no I/O operations.
TOTP generation and cryptographic operations are handled in the shell layer.

Profile-specific UI components for user profile management.

This namespace contains pure functions for generating profile-related Hiccup
structures including profile viewing, editing, password changes, and MFA setup.

Functional Core - Pure session business logic - Minimal working version

User-specific UI components based on User schema.

This namespace contains pure functions for generating user-related Hiccup
structures. Components are derived from the User schema and handle
user-specific business logic for display and forms.

Functional Core - Pure user business logic.

This namespace contains ONLY pure functions with no side effects:
- No I/O operations (no database calls, no logging, no HTTP)
- No external dependencies (time, random generation, etc.)
- Deterministic behavior (same input always produces same output)
- Immutable data structures only

All business rules and domain logic for users belong here.
The shell layer orchestrates I/O and calls these pure functions.

Enhanced domain validation functions for user business rules.

This namespace contains comprehensive validation functions that implement
business rules beyond basic schema validation. All functions are pure
and follow FC/IS architectural principles.