fix: clean vault/vaults output in n8n

- Parse vaults stdout into structured {name,path} pairs

- For vault/vaults, return parsed JSON directly (no stdout wrapper)

- Keep minimal output for all operations: stdout or parsed_stdout

- Bump n8n node package to 0.2.3

packages/n8n-nodes-obsidian-api/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "n8n-nodes-obsidian-cli-api",
-  "version": "0.2.2",
+  "version": "0.2.3",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "n8n-nodes-obsidian-cli-api",
-      "version": "0.2.2",
+      "version": "0.2.3",
       "license": "MIT",
       "devDependencies": {
         "@types/node": "^24.0.0",