add tool use, update system prompt

src/utils/glob-utils.ts

@@ -1,5 +1,5 @@
 import { minimatch } from 'minimatch'
-import { Vault } from 'obsidian'
+import { TFile, TFolder, Vault } from 'obsidian'
 
 export const findFilesMatchingPatterns = async (
 	patterns: string[],
@@ -10,3 +10,24 @@ export const findFilesMatchingPatterns = async (
 		return patterns.some((pattern) => minimatch(file.path, pattern))
 	})
 }
+
+export const listFilesAndFolders = async (vault: Vault, path: string) => {
+	const folder = vault.getAbstractFileByPath(path)
+	const childrenFiles: string[] = []
+	const childrenFolders: string[] = []
+	if (folder instanceof TFolder) {
+		folder.children.forEach((child) => {
+			if (child instanceof TFile) {
+				childrenFiles.push(child.path)
+			} else if (child instanceof TFolder) {
+				childrenFolders.push(child.path + "/")
+			}
+		})
+		return [...childrenFolders, ...childrenFiles]
+	}
+	return []
+}
+
+export const regexSearchFiles = async (vault: Vault, path: string, regex: string, file_pattern: string) => {
+	
+}