feat(n8n): KBDB community node 薄殼——對照表 ✅ 那半的八個動作

leo 2026-08-15「有效才正式開發」下一格：紙上考卷驗過的動作集做成真的 n8n 節點。
詞彙照定案（sheet/field/record，InkStoneCo system-dev/wiki/kbdb-詞彙表.md）。

- 動作 ↔ API 映射收斂在 nodes/Kbdb/actions.ts（純函式），20 個 vitest 釘死
  ——就是動作對照表 ✅ 那半的機器版；🔴/◐ 的動作刻意不存在，呼叫丟
  「沒有這個能力」（07-thin-shell §3.1：API 沒有的能力不拼裝）
- 對外走 cypher-executor /kbdb/* proxy（X-Arcrun-API-Key），不直連 kbdb worker
- Add a field 不掛：proxy 無 PATCH /kbdb/templates（實測 404）；base 端
  PATCH /templates/:id 語意是 slots 整組覆蓋（本地實測），不是加一欄

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

n8n-nodes-kbdb/package.json

@@ -0,0 +1,36 @@
+{
+  "name": "n8n-nodes-kbdb",
+  "version": "0.1.0",
+  "description": "KBDB actions for n8n — sheet / field / record vocabulary, thin shell over the Arcrun cypher-executor /kbdb/* API",
+  "keywords": [
+    "n8n-community-node-package"
+  ],
+  "license": "MIT",
+  "author": "InkStoneCo",
+  "main": "index.js",
+  "files": [
+    "dist"
+  ],
+  "n8n": {
+    "n8nNodesApiVersion": 1,
+    "credentials": [
+      "dist/credentials/KbdbApi.credentials.js"
+    ],
+    "nodes": [
+      "dist/nodes/Kbdb/Kbdb.node.js"
+    ]
+  },
+  "scripts": {
+    "build": "tsc && node -e \"require('fs').copyFileSync('nodes/Kbdb/kbdb.svg','dist/nodes/Kbdb/kbdb.svg')\"",
+    "test": "vitest run"
+  },
+  "devDependencies": {
+    "@types/node": "^22.0.0",
+    "n8n-workflow": "^1.82.0",
+    "typescript": "^5.7.0",
+    "vitest": "^3.1.0"
+  },
+  "peerDependencies": {
+    "n8n-workflow": "*"
+  }
+}