chore: update docs

CODE_GUIDELINES.md

@@ -107,6 +107,11 @@ lib/
 │   ├── membership/        # Domain-specific logic
 │   │   └── member/
 │   │       └── validations/
+│   ├── membership_fees/   # Membership fee business logic
+│   │   ├── cycle_generator.ex  # Cycle generation algorithm
+│   │   └── calendar_cycles.ex  # Calendar cycle calculations
+│   ├── helpers.ex         # Shared helper functions (ash_actor_opts)
+│   ├── constants.ex       # Application constants (member_fields, custom_field_prefix)
 │   ├── application.ex     # OTP application
 │   ├── mailer.ex          # Email mailer
 │   ├── release.ex         # Release tasks
@@ -127,6 +132,11 @@ lib/
 │   │   ├── error_html.ex
 │   │   ├── error_json.ex
 │   │   └── page_html/
+│   ├── helpers/           # Web layer helper modules
+│   │   ├── member_helpers.ex        # Member display utilities
+│   │   ├── membership_fee_helpers.ex # Membership fee formatting
+│   │   ├── date_formatter.ex        # Date formatting utilities
+│   │   └── field_type_formatter.ex   # Field type display formatting
 │   ├── live/              # LiveView modules
 │   │   ├── components/    # LiveView-specific components
 │   │   │   ├── search_bar_component.ex
@@ -143,7 +153,7 @@ lib/
 │   ├── auth_overrides.ex  # AshAuthentication overrides
 │   ├── endpoint.ex        # Phoenix endpoint
 │   ├── gettext.ex         # I18n configuration
-│   ├── live_helpers.ex    # LiveView helpers
+│   ├── live_helpers.ex    # LiveView lifecycle hooks and helpers
 │   ├── live_user_auth.ex  # LiveView authentication
 │   ├── router.ex          # Application router
 │   └── telemetry.ex       # Telemetry configuration
@@ -192,7 +202,7 @@ test/
 **Module Naming:**
 
 - **Modules:** Use `PascalCase` with full namespace (e.g., `Mv.Accounts.User`)
-- **Domains:** Top-level domains are `Mv.Accounts` and `Mv.Membership`
+- **Domains:** Top-level domains are `Mv.Accounts`, `Mv.Membership`, `Mv.MembershipFees`, and `Mv.Authorization`
 - **Resources:** Resource modules should be singular nouns (e.g., `Member`, not `Members`)
 - **Context functions:** Use `snake_case` and verb-first naming (e.g., `create_user`, `list_members`)