Add comprehensive documentation for all project sections

Introduced new and updated documentation files across the docs/ directory, including project structure guides, function library references, and standardized READMEs for ct, install, vm, tools, api, and misc. This update fully documents all nine function libraries, provides quick start and learning paths, and mirrors the project structure for easier navigation and contribution.

docs/misc/alpine-install.func/ALPINE_INSTALL_FUNC_USAGE_EXAMPLES.md

@@ -0,0 +1,24 @@
+# alpine-install.func Usage Examples
+
+Basic examples for Alpine container installation.
+
+### Example: Basic Alpine Setup
+
+```bash
+#!/usr/bin/env bash
+source /dev/stdin <<<"$FUNCTIONS_FILE_PATH"
+
+setting_up_container
+update_os
+
+# Install Alpine packages
+apk add --no-cache curl wget git
+
+motd_ssh
+customize
+cleanup_lxc
+```
+
+---
+
+**Last Updated**: December 2025