modified: .gitignore

modified:   .vscode/launch.json
	new file:   e2e/playwright-collect-coverage.spec.ts
	modified:   package-lock.json
	modified:   package.json
	modified:   playwright.config.ts
	new file:   scripts/merge-lcov.cjs
	new file:   scripts/normalize-lcov.cjs
	new file:   scripts/playwright-collect-coverage.cjs
	new file:   scripts/remap-and-report.cjs
	modified:   vite.config.ts
	new file:   vitest.config.ts

.gitignore

@@ -9,4 +9,4 @@ playwright-report/
 coverage/
 build/
 testrun.log
-e2e-coverage-report/
+coverage-reports/

.vscode/launch.json

@@ -21,9 +21,9 @@
       "request": "launch",
       "command": "npm run test:e2e",
       "cwd": "${workspaceFolder}",
-      "env": {
+      // "env": {
-        "CHROME_PATH": "<path to flatpak chrome wrapper>"
+      //   "CHROME_PATH": "<path to flatpak chrome wrapper>"
-      }
+      // }
     },
     {
       "name": "Unit Test Coverage",
@@ -38,6 +38,13 @@
       "request": "launch",
       "command": "npx tsc -noEmit && npm run build",
       "cwd": "${workspaceFolder}"
+    },
+    {
+      "name": "Full CI Coverage test",
+      "type": "node-terminal",
+      "request": "launch",
+      "command": "npm run coverage:ci",
+      "cwd": "${workspaceFolder}"
     }
   ]
 }

e2e/playwright-collect-coverage.spec.ts

@@ -0,0 +1,57 @@
+// e2e/playwright-collect-coverage.spec.ts
+import fs from 'fs';
+import path from 'path';
+import { test } from '@playwright/test';
+
+const EVAL_TIMEOUT_MS = 5000;
+const WRITE_TIMEOUT_MS = 15000;
+
+function withTimeout<T>(p: Promise<T>, ms: number, onTimeout?: () => void) {
+  let timer: NodeJS.Timeout | undefined;
+  const timeout = new Promise<T>((res) => {
+    timer = setTimeout(() => {
+      onTimeout?.();
+      // @ts-ignore resolve null on timeout
+      res(null);
+    }, ms);
+  });
+  return Promise.race([p, timeout]).then((r) => {
+    if (timer) clearTimeout(timer);
+    return r;
+  });
+}
+
+test.afterEach(async ({ page }, testInfo) => {
+  try {
+    console.log(`Collecting coverage for: ${testInfo.title}`);
+
+    // Evaluate coverage in page, but don't hang forever
+    const evalPromise = page.evaluate(() => (globalThis as any).__coverage__ || null);
+    const coverage = await withTimeout(evalPromise, EVAL_TIMEOUT_MS, () => {
+      console.warn('page.evaluate for coverage timed out');
+    });
+
+    if (!coverage || Object.keys(coverage).length === 0) {
+      console.log('No coverage collected (empty or timed out).');
+      return;
+    }
+
+    const dir = path.join(process.cwd(), '.nyc_output');
+    await fs.promises.mkdir(dir, { recursive: true });
+
+    const safeTitle = (testInfo.title || 'test').replace(/[^a-zA-Z0-9-_]/g, '_').slice(0, 120);
+    const worker = typeof testInfo.workerIndex === 'number' ? testInfo.workerIndex : process.pid;
+    const filename = path.join(dir, `coverage-e2e-w${worker}-${Date.now()}-${safeTitle}.json`);
+
+    // write asynchronously, bounded by timeout
+    const writePromise = fs.promises.writeFile(filename, JSON.stringify(coverage));
+    await withTimeout(writePromise, WRITE_TIMEOUT_MS, () => {
+      console.warn('Writing coverage file timed out');
+    });
+
+    console.log('Wrote coverage:', filename);
+  } catch (error: unknown) {
+    const msg = error instanceof Error ? error.message : String(error);
+    console.warn('Failed to collect coverage from page:', msg);
+  }
+});

package-lock.json

@@ -39,15 +39,22 @@
         "@vitejs/plugin-react": "^5.1.1",
         "@vitest/coverage-v8": "^4.0.14",
         "@vitest/ui": "^4.0.14",
+        "cross-env": "^10.1.0",
         "eslint": "^9.39.1",
         "eslint-plugin-react-hooks": "^7.0.1",
         "eslint-plugin-react-refresh": "^0.4.24",
+        "istanbul-lib-coverage": "^3.2.2",
+        "istanbul-lib-report": "^3.0.1",
+        "istanbul-lib-source-maps": "^5.0.6",
+        "istanbul-reports": "^3.2.0",
         "jsdom": "^27.2.0",
+        "lcov-result-merger": "^5.0.1",
         "msw": "^2.12.3",
         "rollup-plugin-visualizer": "^6.0.5",
         "typescript": "^5.9.3",
         "typescript-eslint": "^8.48.0",
         "vite": "^7.2.6",
+        "vite-plugin-istanbul": "^7.2.1",
         "vitest": "^4.0.14"
       }
     },
@@ -754,6 +761,13 @@
       "integrity": "sha512-snKqtPW01tN0ui7yu9rGv69aJXr/a/Ywvl11sUjNtEcRc+ng/mQriFL0wLXMef74iHa/EkftbDzU9F8iFbH+zg==",
       "license": "MIT"
     },
+    "node_modules/@epic-web/invariant": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/@epic-web/invariant/-/invariant-1.0.0.tgz",
+      "integrity": "sha512-lrTPqgvfFQtR/eY/qkIzp98OGdNJu0m5ji3q/nJI8v3SXkRKEnWiOxMmbvcSoAIzv/cGiuvRy57k4suKQSAdwA==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@esbuild/aix-ppc64": {
       "version": "0.25.12",
       "resolved": "https://registry.npmjs.org/@esbuild/aix-ppc64/-/aix-ppc64-0.25.12.tgz",
@@ -1525,6 +1539,226 @@
         }
       }
     },
+    "node_modules/@isaacs/cliui": {
+      "version": "8.0.2",
+      "resolved": "https://registry.npmjs.org/@isaacs/cliui/-/cliui-8.0.2.tgz",
+      "integrity": "sha512-O8jcjabXaleOG9DQ0+ARXWZBTfnP4WNAqzuiJK7ll44AmxGKv/J2M4TPjxjY3znBCfvBXFzucm1twdyFybFqEA==",
+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
+        "string-width": "^5.1.2",
+        "string-width-cjs": "npm:string-width@^4.2.0",
+        "strip-ansi": "^7.0.1",
+        "strip-ansi-cjs": "npm:strip-ansi@^6.0.1",
+        "wrap-ansi": "^8.1.0",
+        "wrap-ansi-cjs": "npm:wrap-ansi@^7.0.0"
+      },
+      "engines": {
+        "node": ">=12"
+      }
+    },
+    "node_modules/@isaacs/cliui/node_modules/ansi-regex": {
+      "version": "6.2.2",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-6.2.2.tgz",
+      "integrity": "sha512-Bq3SmSpyFHaWjPk8If9yc6svM8c56dB5BAtW4Qbw5jHTwwXXcTLoRMkpDJp6VL0XzlWaCHTXrkFURMYmD0sLqg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/ansi-regex?sponsor=1"
+      }
+    },
+    "node_modules/@isaacs/cliui/node_modules/ansi-styles": {
+      "version": "6.2.3",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-6.2.3.tgz",
+      "integrity": "sha512-4Dj6M28JB+oAH8kFkTLUo+a2jwOFkuqb3yucU0CANcRRUbxS0cP0nZYCGjcc3BNXwRIsUVmDGgzawme7zvJHvg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/ansi-styles?sponsor=1"
+      }
+    },
+    "node_modules/@isaacs/cliui/node_modules/emoji-regex": {
+      "version": "9.2.2",
+      "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-9.2.2.tgz",
+      "integrity": "sha512-L18DaJsXSUk2+42pv8mLs5jJT2hqFkFE4j21wOmgbUqsZ2hL72NsUU785g9RXgo3s0ZNgVl42TiHp3ZtOv/Vyg==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/@isaacs/cliui/node_modules/string-width": {
+      "version": "5.1.2",
+      "resolved": "https://registry.npmjs.org/string-width/-/string-width-5.1.2.tgz",
+      "integrity": "sha512-HnLOCR3vjcY8beoNLtcjZ5/nxn2afmME6lhrDrebokqMap+XbeW8n9TXpPDOqdGK5qcI3oT0GKTW6wC7EMiVqA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "eastasianwidth": "^0.2.0",
+        "emoji-regex": "^9.2.2",
+        "strip-ansi": "^7.0.1"
+      },
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/@isaacs/cliui/node_modules/strip-ansi": {
+      "version": "7.1.2",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-7.1.2.tgz",
+      "integrity": "sha512-gmBGslpoQJtgnMAvOVqGZpEz9dyoKTCzy2nfz/n8aIFhN/jCE/rCmcxabB6jOOHV+0WNnylOxaxBQPSvcWklhA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ansi-regex": "^6.0.1"
+      },
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/strip-ansi?sponsor=1"
+      }
+    },
+    "node_modules/@isaacs/cliui/node_modules/wrap-ansi": {
+      "version": "8.1.0",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-8.1.0.tgz",
+      "integrity": "sha512-si7QWI6zUMq56bESFvagtmzMdGOtoxfR+Sez11Mobfc7tm+VkUckk9bW2UeffTGVUbOksxmSw0AA2gs8g71NCQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ansi-styles": "^6.1.0",
+        "string-width": "^5.0.1",
+        "strip-ansi": "^7.0.1"
+      },
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/wrap-ansi?sponsor=1"
+      }
+    },
+    "node_modules/@istanbuljs/load-nyc-config": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/@istanbuljs/load-nyc-config/-/load-nyc-config-1.1.0.tgz",
+      "integrity": "sha512-VjeHSlIzpv/NyD3N0YuHfXOPDIixcA1q2ZV98wsMqcYlPmv2n3Yb2lYP9XMElnaFVXg5A7YLTeLu6V84uQDjmQ==",
+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
+        "camelcase": "^5.3.1",
+        "find-up": "^4.1.0",
+        "get-package-type": "^0.1.0",
+        "js-yaml": "^3.13.1",
+        "resolve-from": "^5.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/@istanbuljs/load-nyc-config/node_modules/argparse": {
+      "version": "1.0.10",
+      "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
+      "integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
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+      "license": "MIT",
+      "dependencies": {
+        "sprintf-js": "~1.0.2"
+      }
+    },
+    "node_modules/@istanbuljs/load-nyc-config/node_modules/find-up": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/find-up/-/find-up-4.1.0.tgz",
+      "integrity": "sha512-PpOwAdQ/YlXQ2vj8a3h8IipDuYRi3wceVQQGYWxNINccq40Anw7BlsEXCMbt1Zt+OLA6Fq9suIpIWD0OsnISlw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "locate-path": "^5.0.0",
+        "path-exists": "^4.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/@istanbuljs/load-nyc-config/node_modules/js-yaml": {
+      "version": "3.14.2",
+      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.14.2.tgz",
+      "integrity": "sha512-PMSmkqxr106Xa156c2M265Z+FTrPl+oxd/rgOQy2tijQeK5TxQ43psO1ZCwhVOSdnn+RzkzlRz/eY4BgJBYVpg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "argparse": "^1.0.7",
+        "esprima": "^4.0.0"
+      },
+      "bin": {
+        "js-yaml": "bin/js-yaml.js"
+      }
+    },
+    "node_modules/@istanbuljs/load-nyc-config/node_modules/locate-path": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-5.0.0.tgz",
+      "integrity": "sha512-t7hw9pI+WvuwNJXwk5zVHpyhIqzg2qTlklJOf0mVxGSbe3Fp2VieZcduNYjaLDoy6p9uGpQEGWG87WpMKlNq8g==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "p-locate": "^4.1.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/@istanbuljs/load-nyc-config/node_modules/p-limit": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-2.3.0.tgz",
+      "integrity": "sha512-//88mFWSJx8lxCzwdAABTJL2MyWB12+eIY7MDL2SqLmAkeKU9qxRvWuSyTjm3FUmpBEMuFfckAIqEaVGUDxb6w==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "p-try": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=6"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/@istanbuljs/load-nyc-config/node_modules/p-locate": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-4.1.0.tgz",
+      "integrity": "sha512-R79ZZ/0wAxKGu3oYMlz8jy/kbhsNrS7SKZ7PxEHBgJ5+F2mtFW2fK2cOtBh1cHYkQsbzFV7I+EoRKe6Yt0oK7A==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "p-limit": "^2.2.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/@istanbuljs/load-nyc-config/node_modules/resolve-from": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-5.0.0.tgz",
+      "integrity": "sha512-qYg9KP24dD5qka9J47d0aVky0N+b4fTU89LN9iDnjB5waksiC49rvMB0PrUJQGoTmH50XPiqOvAjDfaijGxYZw==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/@istanbuljs/schema": {
+      "version": "0.1.3",
+      "resolved": "https://registry.npmjs.org/@istanbuljs/schema/-/schema-0.1.3.tgz",
+      "integrity": "sha512-ZXRY4jNvVgSVQ8DL3LTcakaAtXwTVUxE81hslsyD2AtoXW/wVob10HkOJ1X/pAlcI7D+2YoZKg5do8G/w6RYgA==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/@jridgewell/gen-mapping": {
       "version": "0.3.13",
       "resolved": "https://registry.npmjs.org/@jridgewell/gen-mapping/-/gen-mapping-0.3.13.tgz",
@@ -1832,6 +2066,44 @@
         }
       }
     },
+    "node_modules/@nodelib/fs.scandir": {
+      "version": "2.1.5",
+      "resolved": "https://registry.npmjs.org/@nodelib/fs.scandir/-/fs.scandir-2.1.5.tgz",
+      "integrity": "sha512-vq24Bq3ym5HEQm2NKCr3yXDwjc7vTsEThRDnkp2DK9p1uqLR+DHurm/NOTo0KG7HYHU7eppKZj3MyqYuMBf62g==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@nodelib/fs.stat": "2.0.5",
+        "run-parallel": "^1.1.9"
+      },
+      "engines": {
+        "node": ">= 8"
+      }
+    },
+    "node_modules/@nodelib/fs.stat": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/@nodelib/fs.stat/-/fs.stat-2.0.5.tgz",
+      "integrity": "sha512-RkhPPp2zrqDAQA/2jNhnztcPAlv64XdhIp7a7454A5ovI7Bukxgt7MX7udwAu3zg1DcpPU0rz3VV1SeaqvY4+A==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 8"
+      }
+    },
+    "node_modules/@nodelib/fs.walk": {
+      "version": "1.2.8",
+      "resolved": "https://registry.npmjs.org/@nodelib/fs.walk/-/fs.walk-1.2.8.tgz",
+      "integrity": "sha512-oGB+UxlgWcgQkgwo8GcEGwemoTFt3FIO9ababBmaGwXIoBKZ+GTy0pP185beGg7Llih/NSHSV2XAs1lnznocSg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@nodelib/fs.scandir": "2.1.5",
+        "fastq": "^1.6.0"
+      },
+      "engines": {
+        "node": ">= 8"
+      }
+    },
     "node_modules/@open-draft/deferred-promise": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/@open-draft/deferred-promise/-/deferred-promise-2.2.0.tgz",
@@ -1857,6 +2129,17 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/@pkgjs/parseargs": {
+      "version": "0.11.0",
+      "resolved": "https://registry.npmjs.org/@pkgjs/parseargs/-/parseargs-0.11.0.tgz",
+      "integrity": "sha512-+1VkjdD0QBLPodGrJUeqarH8VAIvQODIbwh9XpP5Syisf7YoQgsJKPNFoqqLQlu+VQ/tVSshMR6loPMn8U+dPg==",
+      "dev": true,
+      "license": "MIT",
+      "optional": true,
+      "engines": {
+        "node": ">=14"
+      }
+    },
     "node_modules/@playwright/test": {
       "version": "1.57.0",
       "resolved": "https://registry.npmjs.org/@playwright/test/-/test-1.57.0.tgz",
@@ -3151,6 +3434,16 @@
         "node": ">=6"
       }
     },
+    "node_modules/camelcase": {
+      "version": "5.3.1",
+      "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
+      "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=6"
+      }
+    },
     "node_modules/caniuse-lite": {
       "version": "1.0.30001757",
       "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001757.tgz",
@@ -3341,6 +3634,24 @@
         "node": ">= 6"
       }
     },
+    "node_modules/cross-env": {
+      "version": "10.1.0",
+      "resolved": "https://registry.npmjs.org/cross-env/-/cross-env-10.1.0.tgz",
+      "integrity": "sha512-GsYosgnACZTADcmEyJctkJIoqAhHjttw7RsFrVoJNXbsWWqaq6Ym+7kZjq6mS45O0jij6vtiReppKQEtqWy6Dw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@epic-web/invariant": "^1.0.0",
+        "cross-spawn": "^7.0.6"
+      },
+      "bin": {
+        "cross-env": "dist/bin/cross-env.js",
+        "cross-env-shell": "dist/bin/cross-env-shell.js"
+      },
+      "engines": {
+        "node": ">=20"
+      }
+    },
     "node_modules/cross-spawn": {
       "version": "7.0.6",
       "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.6.tgz",
@@ -3507,6 +3818,13 @@
         "csstype": "^3.0.2"
       }
     },
+    "node_modules/eastasianwidth": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/eastasianwidth/-/eastasianwidth-0.2.0.tgz",
+      "integrity": "sha512-I88TYZWc9XiYHRQ4/3c5rjjfgkjhLyW2luGIheGERbNQ6OY7yTybanSpDXZa8y7VUP9YmDcYa+eyq4ca7iLqWA==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/electron-to-chromium": {
       "version": "1.5.262",
       "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.5.262.tgz",
@@ -3812,6 +4130,20 @@
         "url": "https://opencollective.com/eslint"
       }
     },
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+    "node_modules/test-exclude": {
+      "version": "7.0.1",
+      "resolved": "https://registry.npmjs.org/test-exclude/-/test-exclude-7.0.1.tgz",
+      "integrity": "sha512-pFYqmTw68LXVjeWJMST4+borgQP2AyMNbg1BpZh9LbyhUeNkeaPF9gzfPGUAnSMV3qPYdWUwDIjjCLiSDOl7vg==",
+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
+        "@istanbuljs/schema": "^0.1.2",
+        "glob": "^10.4.1",
+        "minimatch": "^9.0.4"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/tinybench": {
       "version": "2.9.0",
       "resolved": "https://registry.npmjs.org/tinybench/-/tinybench-2.9.0.tgz",
@@ -6255,6 +6953,46 @@
         }
       }
     },
+    "node_modules/vite-plugin-istanbul": {
+      "version": "7.2.1",
+      "resolved": "https://registry.npmjs.org/vite-plugin-istanbul/-/vite-plugin-istanbul-7.2.1.tgz",
+      "integrity": "sha512-DSPi4ulvYsjnP44sTI5oriNosbM0E6m3uoCxjdxboTtVzxSkFwcDy3/JnSYKebjr+ZToJwVLTms+2CM0rmbbzQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@babel/generator": "^7.28.0",
+        "@istanbuljs/load-nyc-config": "^1.1.0",
+        "@types/babel__generator": "7.6.8",
+        "espree": "^10.3.0",
+        "istanbul-lib-instrument": "^6.0.3",
+        "picocolors": "^1.1.1",
+        "source-map": "^0.7.4",
+        "test-exclude": "^7.0.1"
+      },
+      "peerDependencies": {
+        "vite": ">=4 <=7"
+      }
+    },
+    "node_modules/vite-plugin-istanbul/node_modules/@types/babel__generator": {
+      "version": "7.6.8",
+      "resolved": "https://registry.npmjs.org/@types/babel__generator/-/babel__generator-7.6.8.tgz",
+      "integrity": "sha512-ASsj+tpEDsEiFr1arWrlN6V3mdfjRMZt6LtK/Vp/kreFLnr5QH5+DhvD5nINYZXzwJvXeGq+05iUXcAzVrqWtw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@babel/types": "^7.0.0"
+      }
+    },
+    "node_modules/vite-plugin-istanbul/node_modules/source-map": {
+      "version": "0.7.6",
+      "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.7.6.tgz",
+      "integrity": "sha512-i5uvt8C3ikiWeNZSVZNWcfZPItFQOsYTUAOkcUPGd8DqDy1uOUikjt5dG+uRlwyvR108Fb9DOd4GvXfT0N2/uQ==",
+      "dev": true,
+      "license": "BSD-3-Clause",
+      "engines": {
+        "node": ">= 12"
+      }
+    },
     "node_modules/vite/node_modules/fsevents": {
       "version": "2.3.3",
       "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.3.tgz",
@@ -6476,6 +7214,25 @@
         "node": ">=8"
       }
     },
+    "node_modules/wrap-ansi-cjs": {
+      "name": "wrap-ansi",
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-7.0.0.tgz",
+      "integrity": "sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ansi-styles": "^4.0.0",
+        "string-width": "^4.1.0",
+        "strip-ansi": "^6.0.0"
+      },
+      "engines": {
+        "node": ">=10"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/wrap-ansi?sponsor=1"
+      }
+    },
     "node_modules/ws": {
       "version": "8.18.3",
       "resolved": "https://registry.npmjs.org/ws/-/ws-8.18.3.tgz",

package.json

@@ -10,7 +10,11 @@
     "lint": "eslint .",
     "test": "vitest",
     "test:coverage": "vitest run --coverage",
-    "test:e2e": "playwright test"
+    "test:e2e": "playwright test",
+    "coverage:unit": "npm run test:coverage",
+    "coverage:e2e": "npm run test:e2e",
+    "coverage:merge": "node scripts/merge-lcov.cjs 'coverage-reports/unit/lcov.info' 'coverage-reports/e2e/coverage.lcov' > coverage-reports/merged/merged.lcov && node scripts/normalize-lcov.cjs coverage-reports/merged/merged.lcov && genhtml coverage-reports/merged/merged.normalized.lcov -o coverage-reports/merged",
+    "coverage:ci": "npm run coverage:unit && npm run coverage:e2e && npm run coverage:merge"
   },
   "dependencies": {
     "@emotion/react": "^11.14.0",
@@ -44,15 +48,22 @@
     "@vitejs/plugin-react": "^5.1.1",
     "@vitest/coverage-v8": "^4.0.14",
     "@vitest/ui": "^4.0.14",
+    "cross-env": "^10.1.0",
     "eslint": "^9.39.1",
     "eslint-plugin-react-hooks": "^7.0.1",
     "eslint-plugin-react-refresh": "^0.4.24",
+    "istanbul-lib-coverage": "^3.2.2",
+    "istanbul-lib-report": "^3.0.1",
+    "istanbul-lib-source-maps": "^5.0.6",
+    "istanbul-reports": "^3.2.0",
     "jsdom": "^27.2.0",
+    "lcov-result-merger": "^5.0.1",
     "msw": "^2.12.3",
     "rollup-plugin-visualizer": "^6.0.5",
     "typescript": "^5.9.3",
     "typescript-eslint": "^8.48.0",
     "vite": "^7.2.6",
+    "vite-plugin-istanbul": "^7.2.1",
     "vitest": "^4.0.14"
   }
 }

playwright.config.ts

@@ -10,7 +10,7 @@ export default defineConfig({
       defineCoverageReporterConfig({
         sourceRoot: process.cwd(), // root used to resolve source files
         exclude: ['node_modules/**', 'e2e/**'], // exclude test sources and deps
-        resultDir: path.join(process.cwd(), 'e2e-coverage-report'),
+        resultDir: path.join(process.cwd(), 'coverage-reports/e2e'),
         reports: [
           ['html'], // interactive HTML at results/e2e-coverage/index.html
           ['lcovonly', { file: 'coverage.lcov' }], // LCOV for CI
@@ -29,9 +29,11 @@ export default defineConfig({
     baseURL: 'http://127.0.0.1:4173',
     headless: true,
     trace: 'on-first-retry',
+    navigationTimeout: 60_000,  // 60s for page.goto / navigations
+    actionTimeout: 30_000,      // optional: for clicks/typing etc (default 30s)
   },
   webServer: {
-    command: 'npm run dev -- --host --port 4173',
+    command: 'E2E_COVERAGE=1 npm run dev -- --host --port 4173',
     url: 'http://127.0.0.1:4173',
     timeout: 120 * 1000,
     reuseExistingServer: !process.env.CI,

scripts/merge-lcov.cjs

@@ -0,0 +1,64 @@
+#!/usr/bin/env node
+'use strict';
+
+const fs = require('fs');
+
+const files = process.argv.slice(2);
+if (files.length < 2) {
+  console.error('Usage: node merge-lcov.cjs <file1.lcov> <file2.lcov> [<file3.lcov> ...]');
+  process.exit(2);
+}
+
+function ensureEntry(map, sf) {
+  if (!map.has(sf)) map.set(sf, { other: new Set(), da: new Map() });
+  return map.get(sf);
+}
+
+const combined = new Map();
+
+for (const f of files) {
+  let content;
+  try {
+    content = fs.readFileSync(f, 'utf8');
+  } catch (err) {
+    console.error('Could not read', f, err.message);
+    process.exit(3);
+  }
+  const lines = content.split(/\r?\n/);
+  let currentSF = null;
+  for (let raw of lines) {
+    const line = raw.trim();
+    if (!line) continue;
+    if (line.startsWith('SF:')) {
+      currentSF = line.slice(3);
+      ensureEntry(combined, currentSF);
+    } else if (!currentSF) {
+      // ignore lines before first SF
+    } else if (line.startsWith('DA:')) {
+      const parts = line.slice(3).split(',');
+      const lnNum = parseInt(parts[0], 10);
+      const hitsNum = parseInt(parts[1] || '0', 10);
+      const entry = ensureEntry(combined, currentSF);
+      entry.da.set(lnNum, (entry.da.get(lnNum) || 0) + hitsNum);
+    } else if (line.startsWith('end_of_record')) {
+      // ignore
+    } else {
+      const entry = ensureEntry(combined, currentSF);
+      entry.other.add(line);
+    }
+  }
+}
+
+let out = '';
+for (const [sf, data] of combined.entries()) {
+  out += `SF:${sf}\n`;
+  const other = Array.from(data.other).sort();
+  for (const l of other) out += l + '\n';
+  const daEntries = Array.from(data.da.entries()).sort((a, b) => a[0] - b[0]);
+  for (const [ln, hits] of daEntries) out += `DA:${ln},${hits}\n`;
+  const lf = daEntries.length;
+  const lh = daEntries.reduce((acc, [, hits]) => acc + (hits > 0 ? 1 : 0), 0);
+  out += `LF:${lf}\nLH:${lh}\nend_of_record\n`;
+}
+
+process.stdout.write(out);

scripts/normalize-lcov.cjs

@@ -0,0 +1,134 @@
+#!/usr/bin/env node
+// scripts/normalize-lcov.cjs
+// Usage: node scripts/normalize-lcov.cjs input.lcov [output.lcov]
+
+const fs = require('fs');
+const path = require('path');
+
+const repoRoot = process.cwd();
+const inFile = process.argv[2] || 'coverage-reports/merged/merged.lcov';
+const outFile = process.argv[3] || inFile.replace(/\.lcov$/, '.normalized.lcov');
+
+if (!fs.existsSync(inFile)) {
+  console.error('Input file not found:', inFile);
+  process.exit(2);
+}
+
+const content = fs.readFileSync(inFile, 'utf8');
+const lines = content.split(/\r?\n/);
+
+// split into records separated by "end_of_record"
+const records = [];
+let cur = [];
+for (const L of lines) {
+  cur.push(L);
+  if (L.trim() === 'end_of_record') {
+    records.push(cur.join('\n'));
+    cur = [];
+  }
+}
+// if file didn't end with end_of_record, push remainder
+if (cur.length) records.push(cur.join('\n'));
+
+function exists(p) {
+  try { return fs.existsSync(p); } catch { return false; }
+}
+
+function findInSrc(basename) {
+  const srcRoot = path.join(repoRoot, 'src');
+  if (!fs.existsSync(srcRoot)) return null;
+  // recursive search (stop when found)
+  function walk(dir) {
+    const items = fs.readdirSync(dir, { withFileTypes: true });
+    for (const it of items) {
+      const full = path.join(dir, it.name);
+      if (it.isFile() && it.name === basename) return full;
+      if (it.isDirectory() && it.name !== 'node_modules' && it.name !== '.git') {
+        const found = walk(full);
+        if (found) return found;
+      }
+    }
+    return null;
+  }
+  return walk(srcRoot);
+}
+
+function normalizeSF(sfLine) {
+  // sfLine is the part after 'SF:'
+  let sf = sfLine.trim();
+
+  // Skip clearly virtual / query-string entries
+  if (sf.startsWith('@') || sf.includes('?v=') || sf === '@react-refresh') {
+    return null;
+  }
+
+  // If it's an absolute path that exists, make it repo-relative.
+  if (path.isAbsolute(sf)) {
+    if (exists(sf)) return path.relative(repoRoot, sf);
+    // Try chopping off any leading workspace prefix and look again
+    const repoName = path.basename(repoRoot);
+    const idx = sf.indexOf(`/${repoName}/`);
+    if (idx !== -1) {
+      const candidate = sf.slice(idx + repoName.length + 2); // after /repoName/
+      if (exists(path.join(repoRoot, candidate))) return candidate;
+      if (exists(path.join(repoRoot, 'src', candidate))) return path.posix.join('src', candidate);
+    }
+  }
+
+  // If it's already relative, check relative to repo root
+  if (!path.isAbsolute(sf)) {
+    if (exists(path.join(repoRoot, sf))) return sf;
+    // If it looks like "stockfill/..." or "<repoName>/..." try to strip the repo prefix
+    const repoName = path.basename(repoRoot);
+    if (sf.startsWith(`${repoName}/`) || sf.startsWith('stockfill/')) {
+      const candidate = sf.replace(new RegExp(`^(${repoName}|stockfill)/`), '');
+      if (exists(path.join(repoRoot, candidate))) return candidate;
+      if (exists(path.join(repoRoot, 'src', candidate))) return path.posix.join('src', candidate);
+    }
+    // If it is a bare filename "DBProvider.tsx" try src/
+    if (!sf.includes('/') && exists(path.join(repoRoot, 'src', sf))) {
+      return path.posix.join('src', sf);
+    }
+  }
+
+  // If it contains '/src/' somewhere, try to extract the src/... suffix
+  const srcIdx = sf.indexOf('/src/');
+  if (srcIdx !== -1) {
+    const candidate = sf.slice(srcIdx + 1); // remove leading slash
+    if (exists(path.join(repoRoot, candidate))) return candidate;
+  }
+
+  // Finally, try finding by basename under src
+  const base = path.basename(sf);
+  const found = findInSrc(base);
+  if (found) return path.relative(repoRoot, found);
+
+  // give up
+  return null;
+}
+
+let kept = 0, dropped = 0;
+
+const outRecords = records.map(rec => {
+  // find SF line
+  const m = rec.match(/^SF:(.*)$/m);
+  if (!m) {
+    // no SF line? keep it (unlikely)
+    kept++;
+    return rec;
+  }
+  const sfRaw = m[1].trim();
+  const normalized = normalizeSF(sfRaw);
+  if (!normalized) {
+    dropped++;
+    return null; // drop entire record
+  }
+  // replace SF:... with normalized relative path using posix separators
+  const normalizedPosix = normalized.split(path.sep).join(path.posix.sep);
+  const newRec = rec.replace(/^SF:.*$/m, `SF:${normalizedPosix}`);
+  kept++;
+  return newRec;
+}).filter(Boolean);
+
+fs.writeFileSync(outFile, outRecords.join('\n') + '\n');
+console.log(`Wrote ${outFile}  (kept ${kept}, dropped ${dropped} records)`);

scripts/playwright-collect-coverage.cjs

@@ -0,0 +1,23 @@
+// tests/playwright-collect-coverage.js
+const fs = require('fs');
+const path = require('path');
+const { test } = require('@playwright/test');
+
+test.afterEach(async ({ page }, testInfo) => {
+  try {
+    // evaluate coverage from the page
+    const coverage = await page.evaluate(() => (globalThis.__coverage__ || {}));
+    if (coverage && Object.keys(coverage).length) {
+      const dir = path.join(process.cwd(), '.nyc_output');
+      fs.mkdirSync(dir, { recursive: true });
+
+      // unique file per worker/test
+      const filename = path.join(dir, `coverage-e2e-${process.pid}-${Date.now()}.json`);
+      fs.writeFileSync(filename, JSON.stringify(coverage));
+      console.log('Wrote coverage:', filename);
+    }
+  } catch (err) {
+    // don't fail tests if coverage collection fails
+    console.warn('Failed to collect coverage from page:', err.message || err);
+  }
+});

scripts/remap-and-report.cjs

@@ -0,0 +1,35 @@
+// scripts/remap-and-report.cjs
+const fs = require('fs');
+const path = require('path');
+const libCoverage = require('istanbul-lib-coverage');
+const libSourceMaps = require('istanbul-lib-source-maps');
+const libReport = require('istanbul-lib-report');
+const reports = require('istanbul-reports');
+
+const out = libCoverage.createCoverageMap({});
+const dir = path.join(process.cwd(), '.nyc_output');
+if (!fs.existsSync(dir)) {
+  console.error('.nyc_output not found');
+  process.exit(2);
+}
+const files = fs.readdirSync(dir).filter(f => f.endsWith('.json'));
+for (const f of files) {
+  const data = JSON.parse(fs.readFileSync(path.join(dir, f), 'utf8'));
+  out.merge(data);
+}
+
+// Remap using source maps
+const sourceMapStore = libSourceMaps.createSourceMapStore();
+const transformed = sourceMapStore.transformCoverage(out);
+const remapped = transformed.map;
+
+// Write reports
+const outDir = path.join(process.cwd(), 'coverage-reports', 'e2e');
+fs.mkdirSync(outDir, { recursive: true });
+const context = libReport.createContext({ dir: outDir, coverageMap: remapped });
+
+// lcov + html
+reports.create('lcovonly', {}).execute(context);
+reports.create('html', {}).execute(context);
+
+console.log('Wrote remapped e2e coverage to', outDir);

vite.config.ts

@@ -3,12 +3,22 @@ import { defineConfig } from 'vite';
 import react from '@vitejs/plugin-react';
 import { visualizer } from 'rollup-plugin-visualizer';
 import path from 'path';
+import istanbul from 'vite-plugin-istanbul';
+
+const isE2E = Boolean(process.env.E2E_COVERAGE)
 
 export default defineConfig({
   plugins: [
     react(),
-    visualizer({ filename: 'dist/stats.html', open: false })
+    visualizer({ filename: 'dist/stats.html', open: false }),
-  ],
+    isE2E &&
+      istanbul({
+        include: 'src/**/*',
+        extension: ['.js', '.ts', '.jsx', '.tsx'],
+        requireEnv: false,     // allow instrumenting unconditionally for CI e2e builds
+        cypress: true,         // enables window.__coverage__ instrumentation style
+      }),
+  ].filter(Boolean),
   resolve: {
     alias: {
       // force single copies of react/react-dom
@@ -35,7 +45,7 @@ export default defineConfig({
     port: 5173
   },
   build: {
-    sourcemap: false,
+    sourcemap: true,
     outDir: 'dist',
     // esbuild is lighter. If you want terser for final prod, run it on a beefy CI runner.
     minify: 'esbuild',

vitest.config.ts

@@ -0,0 +1,24 @@
+import { mergeConfig, defineConfig } from 'vitest/config'
+import viteConfig from './vite.config' 
+
+export default mergeConfig (
+    viteConfig,
+    defineConfig({
+        test: {
+            environment: 'jsdom', // or 'jsdom' if you use DOM env
+            coverage: {
+            provider: 'v8',           // or 'c8' — these support lcov & html
+            reporter: [
+                'text',
+                ['lcov', { projectRoot: './' }], // emit SF relative to repo root
+                'html'
+            ],
+            reportsDirectory: 'coverage-reports/unit', // ← your new unit folder
+            // optional:
+            // all: true,
+            // include: ['src/**/*.ts'],
+            // exclude: ['test/**']
+            },
+        },
+    }),
+)