chore: migrate build to vite-plus, add vitest tests, replace prettier with oxc

Swap tsc/jest/prettier for vite-plus/vitest/oxc to match nopeek's
toolchain. Add 31 tests covering sanitization, CRUD, search, relations,
and cascading deletes. Use node: import prefix throughout.

Author: spences10

.changeset/eight-phones-laugh.md

@@ -0,0 +1,5 @@
+---
+"mcp-memory-libsql": patch
+---
+
+Migrate build to vite-plus, add vitest tests, replace prettier with oxc, use node: imports

.gitignore

@@ -12,7 +12,6 @@ build/
 .env.*.local
 
 # IDE
-.vscode/
 .idea/
 *.swp
 *.swo

.prettierrc

@@ -0,0 +1,4 @@
+{
+	"editor.defaultFormatter": "oxc.oxc-vscode",
+	"editor.formatOnSave": true
+}

.vscode/settings.json

@@ -33,11 +33,13 @@
     "relevance-ranking"
   ],
   "scripts": {
-    "build": "tsc && chmod +x dist/index.js",
+    "build": "vp pack",
     "start": "node dist/index.js",
-    "dev": "node --loader ts-node/esm src/index.ts",
-    "test": "jest",
-    "migrate": "node --loader ts-node/esm src/db/migrations/run.ts",
+    "dev": "vp pack --watch",
+    "test": "vp test",
+    "test:watch": "vp test watch",
+    "check": "vp check",
+    "check:fix": "vp check --fix",
     "prepare": "pnpm run build",
     "changeset": "changeset",
     "version": "changeset version",
@@ -47,18 +49,16 @@
     "@libsql/client": "^0.17.2",
     "@tmcp/adapter-valibot": "^0.1.5",
     "@tmcp/transport-stdio": "^0.4.2",
-    "@types/node": "^25.5.2",
     "dotenv": "^17.4.0",
     "tmcp": "^1.19.3",
     "valibot": "^1.3.1"
   },
   "devDependencies": {
     "@changesets/cli": "^2.30.0",
-    "@types/jest": "^30.0.0",
-    "jest": "^30.3.0",
-    "ts-jest": "^29.4.9",
-    "ts-node": "^10.9.2",
-    "typescript": "^6.0.2"
+    "@types/node": "^25.5.2",
+    "typescript": "^6.0.2",
+    "vite-plus": "^0.1.15",
+    "vitest": "^4.1.2"
   },
   "volta": {
     "node": "24.14.1"