Simplify Windows fix: use idempotent npm install instead of custom installer

Co-authored-by: thedotmack <683968+thedotmack@users.noreply.github.com>

plugin/scripts/ensure-dependencies.js

@@ -1,49 +0,0 @@
-#!/usr/bin/env node
-
-// src/bin/ensure-dependencies.ts
-import { existsSync, mkdirSync, writeFileSync } from "fs";
-import { join, dirname } from "path";
-import { execSync } from "child_process";
-import { fileURLToPath } from "url";
-function getDirname() {
-  return typeof __dirname !== "undefined" ? __dirname : dirname(fileURLToPath(import.meta.url));
-}
-var scriptDir = getDirname();
-var isBuilt = scriptDir.includes("plugin/scripts") || scriptDir.includes("plugin\\scripts");
-var targetDir = isBuilt ? scriptDir : join(scriptDir, "../../plugin/scripts");
-var nodeModulesPath = join(targetDir, "node_modules");
-var packageJsonPath = join(targetDir, "package.json");
-if (existsSync(nodeModulesPath)) {
-  const betterSqlitePath = join(nodeModulesPath, "better-sqlite3");
-  if (existsSync(betterSqlitePath)) {
-    process.exit(0);
-  }
-}
-if (!existsSync(targetDir)) {
-  mkdirSync(targetDir, { recursive: true });
-}
-if (!existsSync(packageJsonPath)) {
-  const packageJson = {
-    name: "claude-mem-scripts",
-    version: "4.2.1",
-    description: "Runtime dependencies for claude-mem plugin hooks",
-    private: true,
-    type: "module",
-    dependencies: {
-      "better-sqlite3": "^11.0.0"
-    }
-  };
-  writeFileSync(packageJsonPath, JSON.stringify(packageJson, null, 2));
-}
-try {
-  console.log("Installing claude-mem dependencies...");
-  execSync("npm install --prefer-offline --no-audit --no-fund --loglevel error", {
-    cwd: targetDir,
-    stdio: "inherit"
-  });
-  console.log("Dependencies installed successfully.");
-  process.exit(0);
-} catch (error) {
-  console.error("Failed to install dependencies:", error.message);
-  process.exit(1);
-}

plugin/scripts/package.json

@@ -1,10 +0,0 @@
-{
-  "name": "claude-mem-scripts",
-  "version": "4.2.1",
-  "description": "Runtime dependencies for claude-mem plugin hooks",
-  "private": true,
-  "type": "module",
-  "dependencies": {
-    "better-sqlite3": "^11.0.0"
-  }
-}