test: add tests for core pipeline and clustering algorithms

.eslintrc.js

@@ -18,5 +18,6 @@ module.exports = {
 	env: {
 		node: true,
 		browser: true,
+		jest: true,
 	},
 };

.github/workflows/ci.yml

@@ -28,5 +28,8 @@ jobs:
       - name: Run Formatting Checks
         run: npm run format:check
 
+      - name: Run Unit Tests
+        run: npm test
+
       - name: Build Plugin (.jpl)
         run: npm run dist

jest.config.ts

@@ -0,0 +1,12 @@
+import type { Config } from 'jest';
+
+const config: Config = {
+	preset: 'ts-jest',
+	testEnvironment: 'node',
+	roots: ['<rootDir>/test'],
+	testMatch: ['**/*.test.ts'],
+	// Match the project's baseUrl so imports resolve correctly
+	moduleDirectories: ['node_modules', '.'],
+};
+
+export default config;