chore(deps): replace jest with vitest

.eslintrc.json

@@ -7,7 +7,6 @@
     ],
     "env": {
         "es6": true,
-        "jest": true,
         "node": true
     },
     "plugins": ["simple-import-sort"],

handlebars.ts

@@ -0,0 +1,59 @@
+import { readFileSync } from 'node:fs';
+import path from 'node:path';
+
+import handlebars from 'handlebars';
+import type { Plugin } from 'rollup';
+
+/**
+ * Custom plugin to parse handlebar imports and precompile
+ * the template on the fly. This reduces runtime by about
+ * half on large projects.
+ */
+export function handlebarsPlugin(): Plugin {
+    return {
+        name: 'handlebars',
+        resolveId: (file: any, importer: any) => {
+            if (path.extname(file) === '.hbs') {
+                return path.resolve(path.dirname(importer), file);
+            }
+            return null;
+        },
+        load: (file: any) => {
+            if (path.extname(file) === '.hbs') {
+                const template = readFileSync(file, 'utf8').toString().trim();
+                const templateSpec = handlebars.precompile(template, {
+                    knownHelpers: {
+                        camelCase: true,
+                        dataParameters: true,
+                        debugThis: true,
+                        enumKey: true,
+                        enumName: true,
+                        enumUnionType: true,
+                        enumValue: true,
+                        equals: true,
+                        escapeComment: true,
+                        escapeDescription: true,
+                        escapeNewline: true,
+                        exactArray: true,
+                        ifdef: true,
+                        ifOperationDataOptional: true,
+                        intersection: true,
+                        modelImports: true,
+                        modelsExports: true,
+                        modelUnionType: true,
+                        nameOperationDataType: true,
+                        notEquals: true,
+                        operationDataType: true,
+                        useDateType: true,
+                    },
+                    knownHelpersOnly: true,
+                    noEscape: true,
+                    preventIndent: true,
+                    strict: true,
+                });
+                return `export default ${templateSpec};`;
+            }
+            return null;
+        },
+    };
+}