feat: Add module docs, Enum coercion, tracebacks, and toggle improvements

- Add comprehensive module docstrings across the codebase for better clarity and documentation.
- Refactor Enum classes (e.g., FileType, ConfirmType) to use `_missing_` for built-in coercion from strings.
- Add `encoding` attribute to `LoadFileAction`, `SaveFileAction`, and `SelectFileAction` for more flexible file handling.
- Enable lazy file loading by default in `SelectFileAction` to improve performance.
- Simplify bottom bar toggle behavior: all toggles now use `ctrl+<key>`, eliminating the need for key conflict checks with Falyx commands.
- Add `ignore_in_history` attribute to `Command` to refine how `ExecutionRegistry` identifies the last valid result.
- Improve History command output: now includes tracebacks when displaying exceptions.

falyx/retry_utils.py

@@ -1,5 +1,14 @@
 # Falyx CLI Framework — (c) 2025 rtj.dev LLC — MIT Licensed
-"""retry_utils.py"""
+"""
+Utilities for enabling retry behavior across Falyx actions.
+
+This module provides a helper to recursively apply a `RetryPolicy` to an action and its
+nested children (e.g. `ChainedAction`, `ActionGroup`), and register the appropriate
+`RetryHandler` to hook into error handling.
+
+Includes:
+- `enable_retries_recursively`: Attaches a retry policy and error hook to all eligible actions.
+"""
 from falyx.action.action import Action
 from falyx.action.base_action import BaseAction
 from falyx.hook_manager import HookType