refactor: restructure repo layout

llm-functions/tools/get_current_time.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+set -e
+
+# @describe Get the current time.
+
+# @env LLM_OUTPUT=/dev/stdout The output path
+
+main() {
+    date >> "$LLM_OUTPUT"
+}
+
+eval "$(argc --argc-eval "$0" "$@")"