diff --git a/eslint.config.js b/eslint.config.js
index c1612e1e..3f9ae667 100644
--- a/eslint.config.js
+++ b/eslint.config.js
@@ -56,10 +56,34 @@ const rules = {
 };
 
 export default defineConfig([
+    // TypeScript support for tests
+    {
+        files: ['**/*.test.ts', '**/*.test.mts', '**/*.test.setup.ts'],
+        ignores: ['tests/playwright/tests/**/*.ts'],
+        languageOptions: {
+            parser: tseslintParser,
+            globals: { ...globals.node, ...globals.vitest },
+            parserOptions: {
+                ecmaVersion: 'latest',
+                sourceType: 'module',
+                project: './tests/tsconfig.json',
+            },
+        },
+        plugins: {
+            '@typescript-eslint': tseslintPlugin,
+        },
+        rules: {
+            // Recommended rules for TypeScript
+            '@typescript-eslint/no-explicit-any': 'warn',
+            '@typescript-eslint/no-unused-vars': ['error', { argsIgnorePattern: '^_', caughtErrors: 'none' }],
+            '@typescript-eslint/ban-ts-comment': 'warn',
+            '@typescript-eslint/consistent-type-definitions': ['error', 'interface'],
+        },
+    },
     // TypeScript support block
     {
         files: ['**/*.ts'],
-        ignores: ['tests/**/*.ts', 'extensions/**/*.ts'],
+        ignores: ['**/*.test.ts', '**/*.test.mts', 'extensions/**/*.ts'],
         languageOptions: {
             parser: tseslintParser,
             parserOptions: {
@@ -99,40 +123,19 @@ export default defineConfig([
             '@typescript-eslint/no-unused-vars': ['error', { argsIgnorePattern: '^_', caughtErrors: 'none' }],
             '@typescript-eslint/ban-ts-comment': 'warn',
             '@typescript-eslint/consistent-type-definitions': ['error', 'interface'],
-        } },
-    // TypeScript support for tests
-    {
-        files: ['tests/**/*.ts'],
-        ignores: ['tests/playwright/tests/**/*.ts'],
-
-        languageOptions: {
-            parser: tseslintParser,
-            globals: { ...globals.jest, ...globals.node },
-            parserOptions: {
-                ecmaVersion: 'latest',
-                sourceType: 'module',
-                project: './tests/tsconfig.json',
-            },
         },
-        plugins: {
-            '@typescript-eslint': tseslintPlugin,
-        },
-        rules: {
-            // Recommended rules for TypeScript
-            '@typescript-eslint/no-explicit-any': 'warn',
-            '@typescript-eslint/no-unused-vars': ['error', { argsIgnorePattern: '^_', caughtErrors: 'none' }],
-            '@typescript-eslint/ban-ts-comment': 'warn',
-            '@typescript-eslint/consistent-type-definitions': ['error', 'interface'],
-        } },
+    },
     {
         plugins: {
             js,
             '@stylistic': stylistic,
-            custom: { rules: {
-                'control-structure-spacing': controlStructureSpacing,
-                'bang-space-if': bangSpaceIf,
-                'space-unary-ops-with-exception': spaceUnaryOpsWithException,
-            } },
+            custom: {
+                rules: {
+                    'control-structure-spacing': controlStructureSpacing,
+                    'bang-space-if': bangSpaceIf,
+                    'space-unary-ops-with-exception': spaceUnaryOpsWithException,
+                },
+            },
         },
     },
     {
@@ -143,6 +146,8 @@ export default defineConfig([
         ],
         ignores: [
             '**/*.test.js',
+            '**/*.test.ts',
+            '**/*.test.mts',
         ],
         languageOptions: { globals: globals.node },
         rules,
@@ -155,8 +160,10 @@ export default defineConfig([
     {
         files: [
             '**/*.test.js',
+            '**/*.test.ts',
+            '**/*.test.mts',
         ],
-        languageOptions: { globals: { ...globals.jest, ...globals.node } },
+        languageOptions: { globals: { ...globals.node, ...globals.vitest } },
         rules,
         plugins: {
             js,
diff --git a/package-lock.json b/package-lock.json
index d6f62c35..83ffe33a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -70,6 +70,13 @@
         "sharp-ico": "^0.1.5"
       }
     },
+    "node_modules/@acemir/cssom": {
+      "version": "0.9.24",
+      "resolved": "https://registry.npmjs.org/@acemir/cssom/-/cssom-0.9.24.tgz",
+      "integrity": "sha512-5YjgMmAiT2rjJZU7XK1SNI7iqTy92DpaYVgG6x63FxkJ11UpYfLndHJATtinWJClAXiOlW9XWaUyAQf8pMrQPg==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@anthropic-ai/sdk": {
       "version": "0.68.0",
       "resolved": "https://registry.npmjs.org/@anthropic-ai/sdk/-/sdk-0.68.0.tgz",
@@ -90,6 +97,82 @@
         }
       }
     },
+    "node_modules/@asamuzakjp/css-color": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/@asamuzakjp/css-color/-/css-color-4.1.0.tgz",
+      "integrity": "sha512-9xiBAtLn4aNsa4mDnpovJvBn72tNEIACyvlqaNJ+ADemR+yeMJWnBudOi2qGDviJa7SwcDOU/TRh5dnET7qk0w==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@csstools/css-calc": "^2.1.4",
+        "@csstools/css-color-parser": "^3.1.0",
+        "@csstools/css-parser-algorithms": "^3.0.5",
+        "@csstools/css-tokenizer": "^3.0.4",
+        "lru-cache": "^11.2.2"
+      }
+    },
+    "node_modules/@asamuzakjp/css-color/node_modules/lru-cache": {
+      "version": "11.2.2",
+      "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-11.2.2.tgz",
+      "integrity": "sha512-F9ODfyqML2coTIsQpSkRHnLSZMtkU8Q+mSfcaIyKwy58u+8k5nvAYeiNhsyMARvzNcXJ9QfWVrcPsC9e9rAxtg==",
+      "dev": true,
+      "license": "ISC",
+      "engines": {
+        "node": "20 || >=22"
+      }
+    },
+    "node_modules/@asamuzakjp/dom-selector": {
+      "version": "6.7.4",
+      "resolved": "https://registry.npmjs.org/@asamuzakjp/dom-selector/-/dom-selector-6.7.4.tgz",
+      "integrity": "sha512-buQDjkm+wDPXd6c13534URWZqbz0RP5PAhXZ+LIoa5LgwInT9HVJvGIJivg75vi8I13CxDGdTnz+aY5YUJlIAA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@asamuzakjp/nwsapi": "^2.3.9",
+        "bidi-js": "^1.0.3",
+        "css-tree": "^3.1.0",
+        "is-potential-custom-element-name": "^1.0.1",
+        "lru-cache": "^11.2.2"
+      }
+    },
+    "node_modules/@asamuzakjp/dom-selector/node_modules/css-tree": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/css-tree/-/css-tree-3.1.0.tgz",
+      "integrity": "sha512-0eW44TGN5SQXU1mWSkKwFstI/22X2bG1nYzZTYMAWjylYURhse752YgbE4Cx46AC+bAvI+/dYTPRk1LqSUnu6w==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "mdn-data": "2.12.2",
+        "source-map-js": "^1.0.1"
+      },
+      "engines": {
+        "node": "^10 || ^12.20.0 || ^14.13.0 || >=15.0.0"
+      }
+    },
+    "node_modules/@asamuzakjp/dom-selector/node_modules/lru-cache": {
+      "version": "11.2.2",
+      "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-11.2.2.tgz",
+      "integrity": "sha512-F9ODfyqML2coTIsQpSkRHnLSZMtkU8Q+mSfcaIyKwy58u+8k5nvAYeiNhsyMARvzNcXJ9QfWVrcPsC9e9rAxtg==",
+      "dev": true,
+      "license": "ISC",
+      "engines": {
+        "node": "20 || >=22"
+      }
+    },
+    "node_modules/@asamuzakjp/dom-selector/node_modules/mdn-data": {
+      "version": "2.12.2",
+      "resolved": "https://registry.npmjs.org/mdn-data/-/mdn-data-2.12.2.tgz",
+      "integrity": "sha512-IEn+pegP1aManZuckezWCO+XZQDplx1366JoVhTpMpBB1sPey/SbveZQUosKiKiGYjg1wH4pMlNgXbCiYgihQA==",
+      "dev": true,
+      "license": "CC0-1.0"
+    },
+    "node_modules/@asamuzakjp/nwsapi": {
+      "version": "2.3.9",
+      "resolved": "https://registry.npmjs.org/@asamuzakjp/nwsapi/-/nwsapi-2.3.9.tgz",
+      "integrity": "sha512-n8GuYSrI9bF7FFZ/SjhwevlHc8xaVlb/7HmHelnc/PZXBD2ZR49NnN9sMMuDdEGPeeRQ5d0hqlSlEpgCX3Wl0Q==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@aws-crypto/sha256-browser": {
       "version": "5.2.0",
       "resolved": "https://registry.npmjs.org/@aws-crypto/sha256-browser/-/sha256-browser-5.2.0.tgz",
@@ -1183,6 +1266,143 @@
         "node": ">=0.1.90"
       }
     },
+    "node_modules/@csstools/color-helpers": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/@csstools/color-helpers/-/color-helpers-5.1.0.tgz",
+      "integrity": "sha512-S11EXWJyy0Mz5SYvRmY8nJYTFFd1LCNV+7cXyAgQtOOuzb4EsgfqDufL+9esx72/eLhsRdGZwaldu/h+E4t4BA==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/csstools"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/csstools"
+        }
+      ],
+      "license": "MIT-0",
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/@csstools/css-calc": {
+      "version": "2.1.4",
+      "resolved": "https://registry.npmjs.org/@csstools/css-calc/-/css-calc-2.1.4.tgz",
+      "integrity": "sha512-3N8oaj+0juUw/1H3YwmDDJXCgTB1gKU6Hc/bB502u9zR0q2vd786XJH9QfrKIEgFlZmhZiq6epXl4rHqhzsIgQ==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/csstools"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/csstools"
+        }
+      ],
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      },
+      "peerDependencies": {
+        "@csstools/css-parser-algorithms": "^3.0.5",
+        "@csstools/css-tokenizer": "^3.0.4"
+      }
+    },
+    "node_modules/@csstools/css-color-parser": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/@csstools/css-color-parser/-/css-color-parser-3.1.0.tgz",
+      "integrity": "sha512-nbtKwh3a6xNVIp/VRuXV64yTKnb1IjTAEEh3irzS+HkKjAOYLTGNb9pmVNntZ8iVBHcWDA2Dof0QtPgFI1BaTA==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/csstools"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/csstools"
+        }
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "@csstools/color-helpers": "^5.1.0",
+        "@csstools/css-calc": "^2.1.4"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "peerDependencies": {
+        "@csstools/css-parser-algorithms": "^3.0.5",
+        "@csstools/css-tokenizer": "^3.0.4"
+      }
+    },
+    "node_modules/@csstools/css-parser-algorithms": {
+      "version": "3.0.5",
+      "resolved": "https://registry.npmjs.org/@csstools/css-parser-algorithms/-/css-parser-algorithms-3.0.5.tgz",
+      "integrity": "sha512-DaDeUkXZKjdGhgYaHNJTV9pV7Y9B3b644jCLs9Upc3VeNGg6LWARAT6O+Q+/COo+2gg/bM5rhpMAtf70WqfBdQ==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/csstools"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/csstools"
+        }
+      ],
+      "license": "MIT",
+      "peer": true,
+      "engines": {
+        "node": ">=18"
+      },
+      "peerDependencies": {
+        "@csstools/css-tokenizer": "^3.0.4"
+      }
+    },
+    "node_modules/@csstools/css-syntax-patches-for-csstree": {
+      "version": "1.0.17",
+      "resolved": "https://registry.npmjs.org/@csstools/css-syntax-patches-for-csstree/-/css-syntax-patches-for-csstree-1.0.17.tgz",
+      "integrity": "sha512-LCC++2h8pLUSPY+EsZmrrJ1EOUu+5iClpEiDhhdw3zRJpPbABML/N5lmRuBHjxtKm9VnRcsUzioyD0sekFMF0A==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/csstools"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/csstools"
+        }
+      ],
+      "license": "MIT-0",
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/@csstools/css-tokenizer": {
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/@csstools/css-tokenizer/-/css-tokenizer-3.0.4.tgz",
+      "integrity": "sha512-Vd/9EVDiu6PPJt9yAh6roZP6El1xHrdvIVGjyBsHR0RYwNHgL7FJPyIIW4fANJNG6FtyZfvlRPpFI4ZM/lubvw==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/csstools"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/csstools"
+        }
+      ],
+      "license": "MIT",
+      "peer": true,
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/@dabh/diagnostics": {
       "version": "2.0.8",
       "resolved": "https://registry.npmjs.org/@dabh/diagnostics/-/diagnostics-2.0.8.tgz",
@@ -6707,6 +6927,13 @@
       "integrity": "sha512-9BCxFwvbGg/RsZK9tjXd8s4UcwR0MWeFQ1XEKIQVVvAGJyINdrqKMcTRyLoK8Rse1GjzLV9cwjWV1olXRWEXVA==",
       "license": "MIT"
     },
+    "node_modules/@standard-schema/spec": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/@standard-schema/spec/-/spec-1.0.0.tgz",
+      "integrity": "sha512-m2bOd0f2RT9k8QJx1JN85cZYyH1RqFBdlwtkSlf4tBDYLCiiZnv1fIIwacK6cqwXavOydf0NPToMQgpKq+dVlA==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@stylistic/eslint-plugin": {
       "version": "5.4.0",
       "resolved": "https://registry.npmjs.org/@stylistic/eslint-plugin/-/eslint-plugin-5.4.0.tgz",
@@ -7849,6 +8076,14 @@
       "integrity": "sha512-NuHqBY1PB/D8xU6s/thBgOAiAP7HOYDQ32+BFZILJ8ivkUkAHQnWfn6WhL79Owj1qmUnoN/YPhktdIoucipkAQ==",
       "license": "Apache-2.0"
     },
+    "node_modules/abab": {
+      "version": "2.0.6",
+      "resolved": "https://registry.npmjs.org/abab/-/abab-2.0.6.tgz",
+      "integrity": "sha512-j2afSsaIENvHZN2B8GOpF566vZ5WVk5opAiMTvWgaQT8DkbOqsTfvNAvHoRGU2zzP8cPoqys+xHTRDWW8L+/BA==",
+      "deprecated": "Use your platform's native atob() and btoa() methods instead",
+      "dev": true,
+      "license": "BSD-3-Clause"
+    },
     "node_modules/abbrev": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
@@ -7893,6 +8128,17 @@
         "node": ">=0.4.0"
       }
     },
+    "node_modules/acorn-globals": {
+      "version": "7.0.1",
+      "resolved": "https://registry.npmjs.org/acorn-globals/-/acorn-globals-7.0.1.tgz",
+      "integrity": "sha512-umOSDSDrfHbTNPuNpC2NSnnA3LUrqpevPb4T9jRx4MagXNS0rs+gwiTcAvqCRmsD6utzsrzNt+ebm00SNWiC3Q==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "acorn": "^8.1.0",
+        "acorn-walk": "^8.0.2"
+      }
+    },
     "node_modules/acorn-import-assertions": {
       "version": "1.9.0",
       "resolved": "https://registry.npmjs.org/acorn-import-assertions/-/acorn-import-assertions-1.9.0.tgz",
@@ -7924,6 +8170,19 @@
         "acorn": "^6.0.0 || ^7.0.0 || ^8.0.0"
       }
     },
+    "node_modules/acorn-walk": {
+      "version": "8.3.4",
+      "resolved": "https://registry.npmjs.org/acorn-walk/-/acorn-walk-8.3.4.tgz",
+      "integrity": "sha512-ueEepnujpqee2o5aIYnvHU6C0A42MNdsIDeqy5BydrkuC5R1ZuUFnm27EeFJGoEHJQgn3uleRvmTXaJgfXbt4g==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "acorn": "^8.11.0"
+      },
+      "engines": {
+        "node": ">=0.4.0"
+      }
+    },
     "node_modules/agent-base": {
       "version": "7.1.4",
       "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-7.1.4.tgz",
@@ -8401,6 +8660,16 @@
         "prebuild-install": "^7.1.1"
       }
     },
+    "node_modules/bidi-js": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/bidi-js/-/bidi-js-1.0.3.tgz",
+      "integrity": "sha512-RKshQI1R3YQ+n9YJz2QQ147P66ELpa1FQEg20Dk8oW9t2KgLbpDLLp9aGZ7y8WHSshDknG0bknqGw5/tyCs5tw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "require-from-string": "^2.0.2"
+      }
+    },
     "node_modules/bignumber.js": {
       "version": "9.3.1",
       "resolved": "https://registry.npmjs.org/bignumber.js/-/bignumber.js-9.3.1.tgz",
@@ -9763,6 +10032,93 @@
       "integrity": "sha512-aylIc7Z9y4yzHYAJNuESG3hfhC+0Ibp/MAMiaOZgNv4pmEdFyfZhhhny4MNiAfWdBQ1RQ2mfDWmM1x8SvGyp8g==",
       "license": "CC0-1.0"
     },
+    "node_modules/cssstyle": {
+      "version": "5.3.3",
+      "resolved": "https://registry.npmjs.org/cssstyle/-/cssstyle-5.3.3.tgz",
+      "integrity": "sha512-OytmFH+13/QXONJcC75QNdMtKpceNk3u8ThBjyyYjkEcy/ekBwR1mMAuNvi3gdBPW3N5TlCzQ0WZw8H0lN/bDw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@asamuzakjp/css-color": "^4.0.3",
+        "@csstools/css-syntax-patches-for-csstree": "^1.0.14",
+        "css-tree": "^3.1.0"
+      },
+      "engines": {
+        "node": ">=20"
+      }
+    },
+    "node_modules/cssstyle/node_modules/css-tree": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/css-tree/-/css-tree-3.1.0.tgz",
+      "integrity": "sha512-0eW44TGN5SQXU1mWSkKwFstI/22X2bG1nYzZTYMAWjylYURhse752YgbE4Cx46AC+bAvI+/dYTPRk1LqSUnu6w==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "mdn-data": "2.12.2",
+        "source-map-js": "^1.0.1"
+      },
+      "engines": {
+        "node": "^10 || ^12.20.0 || ^14.13.0 || >=15.0.0"
+      }
+    },
+    "node_modules/cssstyle/node_modules/mdn-data": {
+      "version": "2.12.2",
+      "resolved": "https://registry.npmjs.org/mdn-data/-/mdn-data-2.12.2.tgz",
+      "integrity": "sha512-IEn+pegP1aManZuckezWCO+XZQDplx1366JoVhTpMpBB1sPey/SbveZQUosKiKiGYjg1wH4pMlNgXbCiYgihQA==",
+      "dev": true,
+      "license": "CC0-1.0"
+    },
+    "node_modules/data-urls": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/data-urls/-/data-urls-6.0.0.tgz",
+      "integrity": "sha512-BnBS08aLUM+DKamupXs3w2tJJoqU+AkaE/+6vQxi/G/DPmIZFJJp9Dkb1kM03AZx8ADehDUZgsNxju3mPXZYIA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "whatwg-mimetype": "^4.0.0",
+        "whatwg-url": "^15.0.0"
+      },
+      "engines": {
+        "node": ">=20"
+      }
+    },
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       "resolved": "https://registry.npmjs.org/watchpack/-/watchpack-2.4.4.tgz",
@@ -18773,6 +19419,16 @@
       "integrity": "sha512-EqhiFU6daOA8kpjOWTL0olhVOF3i7OrFzSYiGsEMB8GcXS+RrzauAERX65xMeNWVqxA6HXH2m69Z9LaKKdisfg==",
       "license": "MIT"
     },
+    "node_modules/whatwg-mimetype": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/whatwg-mimetype/-/whatwg-mimetype-4.0.0.tgz",
+      "integrity": "sha512-QaKxh0eNIi2mE9p2vEdzfagOKHCcj1pJ56EEHGQOVxp8r9/iszLUUV7v89x9O1p/T+NlTM5W7jW6+cz4Fq1YVg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/whatwg-url": {
       "version": "5.0.0",
       "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-5.0.0.tgz",
@@ -19092,6 +19748,16 @@
         "xtend": "^4.0.0"
       }
     },
+    "node_modules/xml-name-validator": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/xml-name-validator/-/xml-name-validator-5.0.0.tgz",
+      "integrity": "sha512-EvGK8EJ3DhaHfbRlETOWAS5pO9MZITeauHKJyb8wyajUfQUenkIg2MvLDTZ4T/TgIcm3HU0TFBgWWboAZ30UHg==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/xml-parse-from-string": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/xml-parse-from-string/-/xml-parse-from-string-1.0.1.tgz",
@@ -19120,6 +19786,13 @@
         "node": ">=4.0"
       }
     },
+    "node_modules/xmlchars": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/xmlchars/-/xmlchars-2.2.0.tgz",
+      "integrity": "sha512-JZnDKK8B0RCDw84FNdDAIpZK+JuJw+s7Lz8nksI7SIuU3UXJJslUthsi+uWBUYOwPFwW7W7PRLRfUKpxjtjFCw==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/xmlhttprequest-ssl": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-2.1.2.tgz",
@@ -19487,6 +20160,7 @@
       "devDependencies": {
         "@types/node": "^20.5.3",
         "chai": "^4.3.7",
+        "jsdom": "^27.2.0",
         "mocha": "^10.2.0",
         "nodemon": "^3.1.0",
         "nyc": "^15.1.0",
@@ -19504,6 +20178,16 @@
         "webpack-cli": "^5.1.1"
       }
     },
+    "src/backend/node_modules/@opentelemetry/api": {
+      "version": "1.9.0",
+      "resolved": "https://registry.npmjs.org/@opentelemetry/api/-/api-1.9.0.tgz",
+      "integrity": "sha512-3giAOQvZiH5F9bMlMiv8+GSPMeqg0dbaeo58/0SlA9sxSqZhnUtxzX9/2FzyhS9sWQf5S0GJE0AKBrFqjpeYcg==",
+      "license": "Apache-2.0",
+      "peer": true,
+      "engines": {
+        "node": ">=8.0.0"
+      }
+    },
     "src/backend/node_modules/@smithy/abort-controller": {
       "version": "2.2.0",
       "license": "Apache-2.0",
@@ -19576,10 +20260,132 @@
       "version": "20.19.4",
       "dev": true,
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "undici-types": "~6.21.0"
       }
     },
+    "src/backend/node_modules/@vitest/expect": {
+      "version": "4.0.13",
+      "resolved": "https://registry.npmjs.org/@vitest/expect/-/expect-4.0.13.tgz",
+      "integrity": "sha512-zYtcnNIBm6yS7Gpr7nFTmq8ncowlMdOJkWLqYvhr/zweY6tFbDkDi8BPPOeHxEtK1rSI69H7Fd4+1sqvEGli6w==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@standard-schema/spec": "^1.0.0",
+        "@types/chai": "^5.2.2",
+        "@vitest/spy": "4.0.13",
+        "@vitest/utils": "4.0.13",
+        "chai": "^6.2.1",
+        "tinyrainbow": "^3.0.3"
+      },
+      "funding": {
+        "url": "https://opencollective.com/vitest"
+      }
+    },
+    "src/backend/node_modules/@vitest/expect/node_modules/chai": {
+      "version": "6.2.1",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-6.2.1.tgz",
+      "integrity": "sha512-p4Z49OGG5W/WBCPSS/dH3jQ73kD6tiMmUM+bckNK6Jr5JHMG3k9bg/BvKR8lKmtVBKmOiuVaV2ws8s9oSbwysg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "src/backend/node_modules/@vitest/mocker": {
+      "version": "4.0.13",
+      "resolved": "https://registry.npmjs.org/@vitest/mocker/-/mocker-4.0.13.tgz",
+      "integrity": "sha512-eNCwzrI5djoauklwP1fuslHBjrbR8rqIVbvNlAnkq1OTa6XT+lX68mrtPirNM9TnR69XUPt4puBCx2Wexseylg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@vitest/spy": "4.0.13",
+        "estree-walker": "^3.0.3",
+        "magic-string": "^0.30.21"
+      },
+      "funding": {
+        "url": "https://opencollective.com/vitest"
+      },
+      "peerDependencies": {
+        "msw": "^2.4.9",
+        "vite": "^6.0.0 || ^7.0.0-0"
+      },
+      "peerDependenciesMeta": {
+        "msw": {
+          "optional": true
+        },
+        "vite": {
+          "optional": true
+        }
+      }
+    },
+    "src/backend/node_modules/@vitest/pretty-format": {
+      "version": "4.0.13",
+      "resolved": "https://registry.npmjs.org/@vitest/pretty-format/-/pretty-format-4.0.13.tgz",
+      "integrity": "sha512-ooqfze8URWbI2ozOeLDMh8YZxWDpGXoeY3VOgcDnsUxN0jPyPWSUvjPQWqDGCBks+opWlN1E4oP1UYl3C/2EQA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "tinyrainbow": "^3.0.3"
+      },
+      "funding": {
+        "url": "https://opencollective.com/vitest"
+      }
+    },
+    "src/backend/node_modules/@vitest/runner": {
+      "version": "4.0.13",
+      "resolved": "https://registry.npmjs.org/@vitest/runner/-/runner-4.0.13.tgz",
+      "integrity": "sha512-9IKlAru58wcVaWy7hz6qWPb2QzJTKt+IOVKjAx5vb5rzEFPTL6H4/R9BMvjZ2ppkxKgTrFONEJFtzvnyEpiT+A==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@vitest/utils": "4.0.13",
+        "pathe": "^2.0.3"
+      },
+      "funding": {
+        "url": "https://opencollective.com/vitest"
+      }
+    },
+    "src/backend/node_modules/@vitest/snapshot": {
+      "version": "4.0.13",
+      "resolved": "https://registry.npmjs.org/@vitest/snapshot/-/snapshot-4.0.13.tgz",
+      "integrity": "sha512-hb7Usvyika1huG6G6l191qu1urNPsq1iFc2hmdzQY3F5/rTgqQnwwplyf8zoYHkpt7H6rw5UfIw6i/3qf9oSxQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@vitest/pretty-format": "4.0.13",
+        "magic-string": "^0.30.21",
+        "pathe": "^2.0.3"
+      },
+      "funding": {
+        "url": "https://opencollective.com/vitest"
+      }
+    },
+    "src/backend/node_modules/@vitest/spy": {
+      "version": "4.0.13",
+      "resolved": "https://registry.npmjs.org/@vitest/spy/-/spy-4.0.13.tgz",
+      "integrity": "sha512-hSu+m4se0lDV5yVIcNWqjuncrmBgwaXa2utFLIrBkQCQkt+pSwyZTPFQAZiiF/63j8jYa8uAeUZ3RSfcdWaYWw==",
+      "dev": true,
+      "license": "MIT",
+      "funding": {
+        "url": "https://opencollective.com/vitest"
+      }
+    },
+    "src/backend/node_modules/@vitest/utils": {
+      "version": "4.0.13",
+      "resolved": "https://registry.npmjs.org/@vitest/utils/-/utils-4.0.13.tgz",
+      "integrity": "sha512-ydozWyQ4LZuu8rLp47xFUWis5VOKMdHjXCWhs1LuJsTNKww+pTHQNK4e0assIB9K80TxFyskENL6vCu3j34EYA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@vitest/pretty-format": "4.0.13",
+        "tinyrainbow": "^3.0.3"
+      },
+      "funding": {
+        "url": "https://opencollective.com/vitest"
+      }
+    },
     "src/backend/node_modules/assertion-error": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-1.1.0.tgz",
@@ -19674,6 +20480,16 @@
         "node": "*"
       }
     },
+    "src/backend/node_modules/tinyrainbow": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/tinyrainbow/-/tinyrainbow-3.0.3.tgz",
+      "integrity": "sha512-PSkbLUoxOFRzJYjjxHJt9xro7D+iilgMX/C9lawzVuYiIdcihh9DXmVibBe8lmcFrRi/VzlPjBxbN7rH24q8/Q==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=14.0.0"
+      }
+    },
     "src/backend/node_modules/tweetnacl": {
       "version": "1.0.3",
       "license": "Unlicense"
@@ -19693,6 +20509,88 @@
       "dev": true,
       "license": "MIT"
     },
+    "src/backend/node_modules/vitest": {
+      "version": "4.0.13",
+      "resolved": "https://registry.npmjs.org/vitest/-/vitest-4.0.13.tgz",
+      "integrity": "sha512-QSD4I0fN6uZQfftryIXuqvqgBxTvJ3ZNkF6RWECd82YGAYAfhcppBLFXzXJHQAAhVFyYEuFTrq6h0hQqjB7jIQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@vitest/expect": "4.0.13",
+        "@vitest/mocker": "4.0.13",
+        "@vitest/pretty-format": "4.0.13",
+        "@vitest/runner": "4.0.13",
+        "@vitest/snapshot": "4.0.13",
+        "@vitest/spy": "4.0.13",
+        "@vitest/utils": "4.0.13",
+        "debug": "^4.4.3",
+        "es-module-lexer": "^1.7.0",
+        "expect-type": "^1.2.2",
+        "magic-string": "^0.30.21",
+        "pathe": "^2.0.3",
+        "picomatch": "^4.0.3",
+        "std-env": "^3.10.0",
+        "tinybench": "^2.9.0",
+        "tinyexec": "^0.3.2",
+        "tinyglobby": "^0.2.15",
+        "tinyrainbow": "^3.0.3",
+        "vite": "^6.0.0 || ^7.0.0",
+        "why-is-node-running": "^2.3.0"
+      },
+      "bin": {
+        "vitest": "vitest.mjs"
+      },
+      "engines": {
+        "node": "^20.0.0 || ^22.0.0 || >=24.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/vitest"
+      },
+      "peerDependencies": {
+        "@edge-runtime/vm": "*",
+        "@opentelemetry/api": "^1.9.0",
+        "@types/debug": "^4.1.12",
+        "@types/node": "^20.0.0 || ^22.0.0 || >=24.0.0",
+        "@vitest/browser-playwright": "4.0.13",
+        "@vitest/browser-preview": "4.0.13",
+        "@vitest/browser-webdriverio": "4.0.13",
+        "@vitest/ui": "4.0.13",
+        "happy-dom": "*",
+        "jsdom": "*"
+      },
+      "peerDependenciesMeta": {
+        "@edge-runtime/vm": {
+          "optional": true
+        },
+        "@opentelemetry/api": {
+          "optional": true
+        },
+        "@types/debug": {
+          "optional": true
+        },
+        "@types/node": {
+          "optional": true
+        },
+        "@vitest/browser-playwright": {
+          "optional": true
+        },
+        "@vitest/browser-preview": {
+          "optional": true
+        },
+        "@vitest/browser-webdriverio": {
+          "optional": true
+        },
+        "@vitest/ui": {
+          "optional": true
+        },
+        "happy-dom": {
+          "optional": true
+        },
+        "jsdom": {
+          "optional": true
+        }
+      }
+    },
     "src/backend/node_modules/wrap-ansi": {
       "version": "7.0.0",
       "license": "MIT",
@@ -19885,6 +20783,19 @@
         "node": ">=0.3.1"
       }
     },
+    "src/gui/node_modules/entities": {
+      "version": "6.0.1",
+      "resolved": "https://registry.npmjs.org/entities/-/entities-6.0.1.tgz",
+      "integrity": "sha512-aN97NXWF6AWBTahfVOIrB/NShkzi5H7F9r1s9mD3cDj4Ko5f2qhhVoYMibXF7GlLveb/D2ioWay8lxI97Ven3g==",
+      "dev": true,
+      "license": "BSD-2-Clause",
+      "engines": {
+        "node": ">=0.12"
+      },
+      "funding": {
+        "url": "https://github.com/fb55/entities?sponsor=1"
+      }
+    },
     "src/gui/node_modules/https-proxy-agent": {
       "version": "5.0.1",
       "dev": true,
@@ -19963,6 +20874,19 @@
         "path-to-regexp": "^8.1.0"
       }
     },
+    "src/gui/node_modules/parse5": {
+      "version": "7.3.0",
+      "resolved": "https://registry.npmjs.org/parse5/-/parse5-7.3.0.tgz",
+      "integrity": "sha512-IInvU7fabl34qmi9gY8XOVxhYyMyuH2xUNpb2q8/Y+7552KlejkRvqvD19nMoUW/uQGGbqNpA6Tufu5FL5BZgw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "entities": "^6.0.0"
+      },
+      "funding": {
+        "url": "https://github.com/inikulin/parse5?sponsor=1"
+      }
+    },
     "src/gui/node_modules/path-to-regexp": {
       "version": "8.2.0",
       "dev": true,
diff --git a/package.json b/package.json
index c200f4e0..0a825661 100644
--- a/package.json
+++ b/package.json
@@ -42,6 +42,7 @@
   "scripts": {
     "test": "npx mocha src/phoenix/test && npx vitest run src/backend && node src/backend/tools/test",
     "test:puterjs-api": "vitest run tests/puterJsApiTests",
+    "test:backend": "vitest --config=src/backend/vitest.config.mts src/backend",
     "start=gui": "nodemon --exec \"node dev-server.js\" ",
     "start": "node ./tools/run-selfhosted.js",
     "prestart": "npm run build:ts",
diff --git a/src/backend/package.json b/src/backend/package.json
index 4c2c9ace..0df849c8 100644
--- a/src/backend/package.json
+++ b/src/backend/package.json
@@ -94,6 +94,7 @@
   "devDependencies": {
     "@types/node": "^20.5.3",
     "chai": "^4.3.7",
+    "jsdom": "^27.2.0",
     "mocha": "^10.2.0",
     "nodemon": "^3.1.0",
     "nyc": "^15.1.0",
diff --git a/src/backend/src/services/MeteringService/MeteringService.test.ts b/src/backend/src/services/MeteringService/MeteringService.test.ts
new file mode 100644
index 00000000..bee098eb
--- /dev/null
+++ b/src/backend/src/services/MeteringService/MeteringService.test.ts
@@ -0,0 +1,9 @@
+import { describe, expect } from 'vitest';
+import { testKernel } from '../../../test.setup.mjs';
+
+describe('MeteringService', () => {
+
+    it('should have some services', () => {
+        expect(testKernel.services).not.toBeUndefined();
+    });
+});
\ No newline at end of file
diff --git a/src/backend/test.setup.mjs b/src/backend/test.setup.mjs
new file mode 100644
index 00000000..a2103cc9
--- /dev/null
+++ b/src/backend/test.setup.mjs
@@ -0,0 +1,10 @@
+// setup.ts - Vitest global setup for Puter API tests (TypeScript)
+import { beforeAll } from 'vitest';
+import { k } from './tools/test.mjs';
+let testKernel = {};
+beforeAll(async () => {
+    console.log("initted with kernel:", k);
+    testKernel = await k;
+});
+export { testKernel };
+//# sourceMappingURL=test.setup.mjs.map
\ No newline at end of file
diff --git a/src/backend/test.setup.mts b/src/backend/test.setup.mts
new file mode 100644
index 00000000..1111f1cb
--- /dev/null
+++ b/src/backend/test.setup.mts
@@ -0,0 +1,14 @@
+// setup.ts - Vitest global setup for Puter API tests (TypeScript)
+import { beforeAll } from 'vitest';
+// @ts-ignore
+import { Kernel } from './src/Kernel.js';
+// @ts-ignore
+import {k} from './tools/test.mjs';
+
+let testKernel = {} as Kernel;
+beforeAll(async () => {
+    console.log("initted with kernel:" ,k)
+    testKernel = await k;
+});
+
+export { testKernel };
\ No newline at end of file
diff --git a/src/backend/tools/test.js b/src/backend/tools/test.mjs
similarity index 92%
rename from src/backend/tools/test.js
rename to src/backend/tools/test.mjs
index a5627773..62ef8943 100644
--- a/src/backend/tools/test.js
+++ b/src/backend/tools/test.mjs
@@ -17,14 +17,13 @@
  * You should have received a copy of the GNU Affero General Public License
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
-const { AdvancedBase } = require('@heyputer/putility');
-const useapi = require('useapi');
-const { BaseService, EssentialModules } = require('../exports');
-const CoreModule = require('../src/CoreModule');
-const { Context } = require('../src/util/context');
-const { Kernel } = require('../src/Kernel');
-const { HTTPThumbnailService } = require('../src/services/thumbnails/HTTPThumbnailService');
-const { RuntimeModuleRegistry } = require('../src/extension/RuntimeModuleRegistry');
+import { AdvancedBase } from '@heyputer/putility';
+import useapi from 'useapi';
+import { BaseService, EssentialModules } from '../exports';
+import { RuntimeModuleRegistry } from '../src/extension/RuntimeModuleRegistry';
+import { Kernel } from '../src/Kernel';
+import { HTTPThumbnailService } from '../src/services/thumbnails/HTTPThumbnailService';
+import { Context } from '../src/util/context';
 
 /**
  * A simple implementation of the log interface for the test kernel.
@@ -65,7 +64,9 @@ class TestKernel extends AdvancedBase {
         * @returns {void}
         */
         this.useapi.withuse(() => {
+            // eslint-disable-next-line no-undef
             def('Module', AdvancedBase);
+            // eslint-disable-next-line no-undef
             def('Service', BaseService);
         });
 
@@ -87,7 +88,7 @@ class TestKernel extends AdvancedBase {
         const { consoleLogManager } = require('../src/util/consolelog');
         consoleLogManager.initialize_proxy_methods();
 
-        consoleLogManager.decorate_all(({ manager, replace }, ...a) => {
+        consoleLogManager.decorate_all(({ _manager, replace }, ...a) => {
             replace(...this.logfn_(...a));
         });
 
@@ -151,7 +152,7 @@ class TestKernel extends AdvancedBase {
 TestKernel.prototype._create_mod_context =
     Kernel.prototype._create_mod_context;
 
-const k = new TestKernel();
+export const k = new TestKernel();
 for ( const mod of EssentialModules ) {
     k.add_module(new mod());
 }
diff --git a/src/backend/vitest.config.mjs b/src/backend/vitest.config.mjs
new file mode 100644
index 00000000..eee3c372
--- /dev/null
+++ b/src/backend/vitest.config.mjs
@@ -0,0 +1,20 @@
+// vite.config.ts - Vite configuration for Puter API tests (TypeScript)
+import { loadEnv } from 'vite';
+import { defineConfig } from 'vitest/config';
+import { fileURLToPath } from 'node:url';
+import path from 'node:path';
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+export default defineConfig(({ mode }) => ({
+    test: {
+        globals: true,
+        environment: 'jsdom',
+        setupFiles: [path.resolve(__dirname, './test.setup.mts')],
+        coverage: {
+            reporter: ['text', 'json', 'html'],
+            exclude: [path.resolve(__dirname, './test.setup.mts')],
+        },
+        env: loadEnv(mode, '', 'PUTER_'),
+    },
+}));
+//# sourceMappingURL=vitest.config.mjs.map
\ No newline at end of file
diff --git a/src/backend/vitest.config.mts b/src/backend/vitest.config.mts
new file mode 100644
index 00000000..87467434
--- /dev/null
+++ b/src/backend/vitest.config.mts
@@ -0,0 +1,21 @@
+// vite.config.ts - Vite configuration for Puter API tests (TypeScript)
+import {loadEnv} from 'vite';
+import { defineConfig } from 'vitest/config';
+import { fileURLToPath, URL } from 'node:url';
+import path from 'node:path';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+
+export default defineConfig(({ mode }) => ({
+    test: {
+        globals: true,
+        environment: 'jsdom',
+        setupFiles: [path.resolve(__dirname, './test.setup.mts')],
+        coverage: {
+            reporter: ['text', 'json', 'html'],
+            exclude: [path.resolve(__dirname, './test.setup.mts')],
+        },
+        env: loadEnv(mode, '', 'PUTER_'),
+    },
+}));
\ No newline at end of file
diff --git a/tests/puterJsApiTests/kv.test.ts b/tests/puterJsApiTests/kv.test.ts
index 9ba701c6..f3554fb1 100644
--- a/tests/puterJsApiTests/kv.test.ts
+++ b/tests/puterJsApiTests/kv.test.ts
@@ -13,7 +13,7 @@ describe('Puter KV Module', () => {
         expect(getRes).toBe(0);
     });
     it('should get empty key', async () => {
-        const emptyRes = await puter.kv.get('fake' + TEST_KEY)
+        const emptyRes = await puter.kv.get(`fake${ TEST_KEY}`);
         expect(emptyRes).toBeNull();
     });
 
@@ -39,7 +39,7 @@ describe('Puter KV Module', () => {
         expect(incrRes).toBe(1);
         const finalGet = await puter.kv.get(TEST_KEY);
         expect(finalGet).toBe(1);
-    })
+    });
 
     it('should decrement a key with second argument', async () => {
         await puter.kv.set(TEST_KEY, 0);
@@ -47,7 +47,7 @@ describe('Puter KV Module', () => {
         expect(incrRes).toBe(-1);
         const finalGet = await puter.kv.get(TEST_KEY);
         expect(finalGet).toBe(-1);
-    })
+    });
 
     it('should increment a key with second argument', async () => {
         await puter.kv.set(TEST_KEY, 0);
@@ -55,7 +55,7 @@ describe('Puter KV Module', () => {
         expect(incrRes).toBe(2);
         const finalGet = await puter.kv.get(TEST_KEY);
         expect(finalGet).toBe(2);
-    })
+    });
 
     it('should decrement a key with second argument', async () => {
         await puter.kv.set(TEST_KEY, 0);
@@ -63,7 +63,7 @@ describe('Puter KV Module', () => {
         expect(incrRes).toBe(-3);
         const finalGet = await puter.kv.get(TEST_KEY);
         expect(finalGet).toBe(-3);
-    })
+    });
 
     it('should increment a key with nested path', async () => {
         await puter.kv.set(TEST_KEY, { a: { b: 0 } });
@@ -71,7 +71,7 @@ describe('Puter KV Module', () => {
         expect(incrRes).toEqual({ a: { b: 1 } });
         const finalGet = await puter.kv.get(TEST_KEY);
         expect(finalGet).toEqual({ a: { b: 1 } });
-    })
+    });
 
     it('should decrement a key with nested path', async () => {
         await puter.kv.set(TEST_KEY, { a: { b: 0 } });
@@ -79,21 +79,21 @@ describe('Puter KV Module', () => {
         expect(incrRes).toEqual({ a: { b: -1 } });
         const finalGet = await puter.kv.get(TEST_KEY);
         expect(finalGet).toEqual({ a: { b: -1 } });
-    })
+    });
 
     it('should increment a nonexistent key with nested path', async () => {
         const incrRes = await puter.kv.incr(TEST_KEY + 1, { 'a.b': 1 });
         expect(incrRes).toEqual({ a: { b: 1 } });
         const finalGet = await puter.kv.get(TEST_KEY + 1);
         expect(finalGet).toEqual({ a: { b: 1 } });
-    })
+    });
 
     it('should decrement a nonexistent key with nested path', async () => {
         const incrRes = await puter.kv.decr(TEST_KEY + 2, { 'a.b': 1 });
         expect(incrRes).toEqual({ a: { b: -1 } });
         const finalGet = await puter.kv.get(TEST_KEY + 2);
         expect(finalGet).toEqual({ a: { b: -1 } });
-    })
+    });
 
     it('should list keys', async () => {
         const listRes = await puter.kv.list();
@@ -103,7 +103,7 @@ describe('Puter KV Module', () => {
     });
     // delete ops should go last
     it('should flush all keys', async () => {
-        const flushRes = await puter.kv.flush()
+        const flushRes = await puter.kv.flush();
         expect(flushRes).toBe(true);
         const postFlushList = await puter.kv.list();
         expect(Array.isArray(postFlushList)).toBe(true);
diff --git a/tests/tsconfig.json b/tests/tsconfig.json
index 846f1653..d713eabc 100644
--- a/tests/tsconfig.json
+++ b/tests/tsconfig.json
@@ -1,11 +1,18 @@
 {
     "extends": "../tsconfig.json",
     "compilerOptions": {
-        "rootDir": ".."
+        "rootDir": "..",
+    "target": "es6",
+    "module": "es6",
+    "moduleResolution": "bundler",
+    "outDir": "build",
+    "esModuleInterop": true
+  
     },
     "include": [
-        "**/*.ts",
-        "**/*.tsx"
+        "../**/*.test.mts",
+        "../**/*.test.ts",
+        "../src/backend/test.setup.mts"    
     ],
     "exclude": [
         "node_modules"
diff --git a/tsconfig.json b/tsconfig.json
index 2ee6e019..c121f361 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -12,7 +12,13 @@
     },
     "exclude": [
         "**/*.test.ts",
+        "**/*.test.setup.ts",
+        "**/*.test.setup.mts",
+        "**/*.vitest.config.ts",
+        "**/*.vitest.config.mts",
+        "**/*.test.mts",
         "**/*.spec.ts",
+        "**/*.spec.mts",
         "**/test/**",
         "**/tests/**",
         "node_modules",