Add command mycli self source-code

commands/self/source-code.sh

@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+##? Display the source code of a command.
+##?
+##? Usage:
+##?   self source-code <command> <subcommand>
+##?
+##? Options:
+##?   <command>     Command name
+##?   <subcommand>  Subcommand name
+
+source "${CLI_DIR}/core/helpers.sh"
+parse_help "$@"
+declare command subcommand
+
+# Validate that command/subcommand contain only safe characters (no path traversal or globs)
+if [[ ! $command =~ ^[a-z0-9][a-z0-9_-]*$ ]]; then
+  exit_with_error "Invalid command name: '$command'. Use lowercase letters, numbers, hyphens, and underscores only."
+fi
+if [[ ! $subcommand =~ ^[a-z0-9][a-z0-9_-]*$ ]]; then
+  exit_with_error "Invalid subcommand name: '$subcommand'. Use lowercase letters, numbers, hyphens, and underscores only."
+fi
+
+# Resolve file using find to enforce "commands/" boundary (prevents ../.. and glob escapes)
+script_path=$(find "${CLI_DIR}/commands" \
+  -maxdepth 2 \
+  -type f \
+  -path "${CLI_DIR}/commands/${command}/${subcommand}.sh")
+
+if [[ -z $script_path ]]; then
+  exit_with_error "Command 'mycli $command $subcommand' not found."
+fi
+
+echo_gray "Source code for 'mycli $command $subcommand' (file '$script_path'):\n"
+
+if command_exists "bat"; then
+  bat --style=plain --color=auto --language=bash "$script_path"
+else
+  cat "$script_path"
+fi