feat(OBC-001): initialize strict TS plugin project with lint and tests

.gitignore

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+node_modules
+dist
+coverage
+.DS_Store

eslint.config.mjs

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+import js from "@eslint/js";
+import tseslint from "typescript-eslint";
+
+export default [
+  {
+    ignores: ["dist/**", "coverage/**"],
+  },
+  js.configs.recommended,
+  ...tseslint.configs.recommended,
+  {
+    files: ["**/*.ts"],
+    languageOptions: {
+      ecmaVersion: "latest",
+      sourceType: "module",
+    },
+    rules: {
+      "@typescript-eslint/consistent-type-imports": [
+        "error",
+        {
+          prefer: "type-imports",
+          fixStyle: "inline-type-imports",
+        },
+      ],
+    },
+  },
+];

package.json

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+{
+  "name": "openclaw-openbrain-context",
+  "version": "0.0.1",
+  "description": "OpenBrain-backed ContextEngine plugin for OpenClaw",
+  "type": "module",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "files": [
+    "dist",
+    "openclaw.plugin.json",
+    "README.md"
+  ],
+  "scripts": {
+    "lint": "eslint . --max-warnings=0",
+    "build": "tsc -p tsconfig.json",
+    "test": "vitest run"
+  },
+  "peerDependencies": {
+    "openclaw": ">=2026.3.2"
+  },
+  "devDependencies": {
+    "@eslint/js": "^9.25.1",
+    "@types/node": "^22.15.3",
+    "eslint": "^9.25.1",
+    "typescript": "^5.8.3",
+    "typescript-eslint": "^8.30.1",
+    "vitest": "^2.1.8"
+  }
+}

src/index.ts

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+export const OPENBRAIN_CONTEXT_ENGINE_ID = "openbrain";

tests/smoke.test.ts

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+import { describe, expect, it } from "vitest";
+
+import { OPENBRAIN_CONTEXT_ENGINE_ID } from "../src/index.js";
+
+describe("project scaffold", () => {
+  it("exports openbrain context engine id", () => {
+    expect(OPENBRAIN_CONTEXT_ENGINE_ID).toBe("openbrain");
+  });
+});

tsconfig.json

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+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "module": "NodeNext",
+    "moduleResolution": "NodeNext",
+    "lib": ["ES2022"],
+    "strict": true,
+    "noUncheckedIndexedAccess": true,
+    "exactOptionalPropertyTypes": true,
+    "isolatedModules": true,
+    "declaration": true,
+    "declarationMap": true,
+    "sourceMap": true,
+    "outDir": "dist",
+    "rootDir": ".",
+    "types": ["node", "vitest/globals"],
+    "skipLibCheck": true,
+    "esModuleInterop": true,
+    "forceConsistentCasingInFileNames": true,
+    "baseUrl": ".",
+    "paths": {
+      "openclaw/plugin-sdk": ["../openclaw-fork/src/plugin-sdk/index.ts"]
+    }
+  },
+  "include": ["src/**/*.ts", "tests/**/*.ts"],
+  "exclude": ["dist", "node_modules"]
+}

vitest.config.ts

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+import { defineConfig } from "vitest/config";
+
+export default defineConfig({
+  test: {
+    environment: "node",
+    include: ["tests/**/*.test.ts"],
+  },
+});