feat: enforce browser security boundaries

.gitignore

@@ -9,4 +9,5 @@ artifacts/**/*.json
 artifacts/**/*.xml
 artifacts/**/*.txt
 artifacts/**/*.sarif
+artifacts/tests/e2e/
 !artifacts/**/.gitkeep

artifacts/tests/a11y-manual/APP_HOME.md

@@ -0,0 +1,15 @@
+# APP_HOME accessibility review
+
+Status: pending-manual-review
+
+Reviewer:
+
+Keyboard: automated tab-order fixture passed; human review pending.
+
+Focus: automated visible-focus fixture passed; route-change review pending.
+
+Screen reader: pending.
+
+Reduced motion: automated media-query fixture passed; human review pending.
+
+Color signal: pending.

config/hosting/security-headers.json

@@ -0,0 +1,11 @@
+{
+  "schemaVersion": 1,
+  "headers": {
+    "Content-Security-Policy": "default-src 'self'; base-uri 'self'; object-src 'none'; frame-ancestors 'none'; form-action 'self'; script-src 'self'; style-src 'self'; img-src 'self' data:; connect-src 'self' https:; font-src 'self'; upgrade-insecure-requests",
+    "Strict-Transport-Security": "max-age=31536000; includeSubDomains",
+    "X-Frame-Options": "DENY",
+    "Referrer-Policy": "strict-origin-when-cross-origin",
+    "X-Content-Type-Options": "nosniff",
+    "Permissions-Policy": "camera=(), microphone=(), geolocation=()"
+  }
+}

docs/accessibility/manual-checklist.md

@@ -0,0 +1,17 @@
+# Manual accessibility review checklist
+
+Automated axe checks do not establish WCAG conformance. A human reviewer must
+copy this checklist to `artifacts/tests/a11y-manual/<route-id>.md`, execute it
+on the release candidate, and sign it.
+
+- Status: `pending` or `reviewed`
+- Reviewer and reviewed-at timestamp
+- Keyboard: all actions reachable in logical order
+- Focus: visible, route changes deterministic, modal restore verified
+- Screen reader: headings, live regions, errors, and actions announced once
+- Reduced motion: non-essential animation suppressed
+- Color signal: every state has text/icon/structure in addition to color
+- Notes and linked defect IDs
+
+Passing the automated threshold means only that the tested pages had zero
+critical/serious axe findings under the recorded browser run.

docs/security/browser-boundary.md

@@ -0,0 +1,13 @@
+# Browser security boundary
+
+The browser bundle is public. Secrets, token lifecycle, raw HTML injection,
+dynamic code execution, untrusted script URLs, and public production source
+maps are prohibited defaults.
+
+`config/hosting/security-headers.json` is the declared header set. Hosting
+verification compares that declaration with live responses. CSP deliberately
+omits `unsafe-inline` and `unsafe-eval`; production code and built assets must
+remain compatible with that baseline.
+
+Route guards are UX hints and client validation does not replace backend
+authorization or validation.

docs/security/supply-chain.md

@@ -0,0 +1,18 @@
+# Build and supply-chain gate
+
+Merge and release controls:
+
+- frozen `pnpm-lock.yaml` installation; drift is blocking
+- clean production build with hashed assets and build manifest
+- machine-readable bundle sizes and checksums
+- source plus built-asset credential-pattern scan
+- direct dependency inventory and lockfile digest
+- base/head dependency diff review record
+
+Organization-specific vulnerability severity, denied-license list, SBOM format,
+and scanner selection remain policy inputs. An approved suppression must record
+reason, owner, expiry, affected package, and compensating control. Expired
+suppressions are blocking.
+
+`artifacts/security/dependency-diff.json` is a local baseline. CI replaces it
+with the actual base/head direct and transitive lockfile diff before release.

docs/styling/design-tokens.md

@@ -0,0 +1,17 @@
+# Design-token styling contract
+
+`src/presentation/styles/theme.css` is the styling SSOT. Components consume
+semantic color, spacing, typography, and radius tokens through static Tailwind
+classes.
+
+Arbitrary-value policy:
+
+- prefer a named semantic token
+- bracket values are allowed only for one-off platform constraints that cannot
+  be expressed by the current scale
+- a repeated bracket value must be promoted into `@theme`
+- user-controlled or runtime-composed class strings are forbidden
+- class variants must be selected from a closed static map
+
+The removable sample may demonstrate tokens, but product modules must not
+import from `src/sample/contract-fixture`.

eslint.config.js

@@ -35,6 +35,7 @@ export default [
       "artifacts/**",
       "tests/fixtures/typecheck/**",
       "tests/fixtures/architecture/forbidden/**",
+      "tests/fixtures/security/forbidden/**",
     ],
   },
   eslint.configs.recommended,
@@ -98,4 +99,24 @@ export default [
       ]),
     },
   },
+  {
+    files: ["**/*.{js,jsx}"],
+    rules: {
+      "no-eval": "error",
+      "no-new-func": "error",
+      "no-script-url": "error",
+      "no-restricted-syntax": [
+        "error",
+        {
+          selector: "JSXAttribute[name.name='dangerouslySetInnerHTML']",
+          message: "Raw HTML injection is prohibited by FE-OC-019.",
+        },
+        {
+          selector:
+            "CallExpression[callee.object.name='document'][callee.property.name='createElement'][arguments.0.value='script']",
+          message: "Runtime script construction is prohibited by FE-OC-019.",
+        },
+      ],
+    },
+  },
 ];

package.json

@@ -11,6 +11,7 @@
   "scripts": {
     "dev": "vite",
     "build": "vite build && node scripts/generate-build-manifest.mjs",
+    "build:release": "corepack pnpm build && corepack pnpm generate:supply-chain && corepack pnpm scan:security",
     "preview": "vite preview",
     "lint": "eslint src scripts tests vite.config.js vitest.config.js playwright.config.js --max-warnings=0",
     "check:architecture": "node scripts/check-architecture.mjs",
@@ -21,9 +22,14 @@
     "test:component": "vitest run tests/component --reporter=default --reporter=junit --outputFile.junit=artifacts/tests/component.xml",
     "test:integration": "vitest run tests/integration --reporter=default --reporter=junit --outputFile.junit=artifacts/tests/integration.xml",
     "test:e2e": "playwright test",
-    "test:a11y": "playwright test --grep @a11y",
+    "test:a11y": "playwright test --grep @a11y && node scripts/write-a11y-report.mjs",
+    "review:a11y-manual": "node scripts/verify-a11y-manual.mjs",
     "test:sample-removal": "node scripts/test-sample-removal.mjs",
-    "test:all": "pnpm test:runtime-schema && pnpm test:unit && pnpm test:component && pnpm test:integration"
+    "test:all": "corepack pnpm test:runtime-schema && corepack pnpm test:unit && corepack pnpm test:component && corepack pnpm test:integration",
+    "verify:lockfile": "corepack pnpm install --frozen-lockfile",
+    "generate:supply-chain": "node scripts/generate-supply-chain.mjs",
+    "scan:security": "node scripts/security-scan.mjs",
+    "check:browser-security": "node scripts/check-browser-security.mjs"
   },
   "dependencies": {
     "@tanstack/react-query": "5.101.4",
@@ -39,6 +45,7 @@
     "@testing-library/jest-dom": "7.0.0",
     "@testing-library/react": "16.3.2",
     "@testing-library/user-event": "14.6.1",
+    "@tailwindcss/vite": "4.3.3",
     "@types/node": "24.13.3",
     "@types/react": "19.2.8",
     "@types/react-dom": "19.2.3",
@@ -48,6 +55,7 @@
     "globals": "17.7.0",
     "jsdom": "29.1.1",
     "msw": "2.15.0",
+    "tailwindcss": "4.3.3",
     "typescript": "7.0.2",
     "vite": "8.1.5",
     "vitest": "4.1.10"

playwright.config.js

@@ -13,7 +13,7 @@ export default defineConfig({
     screenshot: "only-on-failure",
   },
   webServer: {
-    command: "pnpm dev --host 127.0.0.1",
+    command: "corepack pnpm dev --host 127.0.0.1",
     url: "http://127.0.0.1:5173",
     reuseExistingServer: !process.env.CI,
   },

pnpm-lock.yaml

@@ -29,10 +29,13 @@ importers:
         version: 4.12.1(playwright-core@1.62.0)
       '@eslint/js':
         specifier: 10.0.1
-        version: 10.0.1(eslint@10.8.0(supports-color@7.2.0))
+        version: 10.0.1(eslint@10.8.0(jiti@2.7.0)(supports-color@7.2.0))
       '@playwright/test':
         specifier: 1.62.0
         version: 1.62.0
+      '@tailwindcss/vite':
+        specifier: 4.3.3
+        version: 4.3.3(vite@8.1.5(@types/node@24.13.3)(jiti@2.7.0))
       '@testing-library/jest-dom':
         specifier: 7.0.0
         version: 7.0.0(@testing-library/dom@10.4.1)
@@ -53,13 +56,13 @@ importers:
         version: 19.2.3(@types/react@19.2.8)
       '@vitejs/plugin-react':
         specifier: 6.0.4
-        version: 6.0.4(vite@8.1.5(@types/node@24.13.3))
+        version: 6.0.4(vite@8.1.5(@types/node@24.13.3)(jiti@2.7.0))
       dependency-cruiser:
         specifier: 18.1.0
         version: 18.1.0
       eslint:
         specifier: 10.8.0
-        version: 10.8.0(supports-color@7.2.0)
+        version: 10.8.0(jiti@2.7.0)(supports-color@7.2.0)
       globals:
         specifier: 17.7.0
         version: 17.7.0
@@ -69,15 +72,18 @@ importers:
       msw:
         specifier: 2.15.0
         version: 2.15.0(@types/node@24.13.3)(typescript@7.0.2)
+      tailwindcss:
+        specifier: 4.3.3
+        version: 4.3.3
       typescript:
         specifier: 7.0.2
         version: 7.0.2
       vite:
         specifier: 8.1.5
-        version: 8.1.5(@types/node@24.13.3)
+        version: 8.1.5(@types/node@24.13.3)(jiti@2.7.0)
       vitest:
         specifier: 4.1.10
-        version: 4.1.10(@types/node@24.13.3)(jsdom@29.1.1)(msw@2.15.0(@types/node@24.13.3)(typescript@7.0.2))(vite@8.1.5(@types/node@24.13.3))
+        version: 4.1.10(@types/node@24.13.3)(jsdom@29.1.1)(msw@2.15.0(@types/node@24.13.3)(typescript@7.0.2))(vite@8.1.5(@types/node@24.13.3)(jiti@2.7.0))
 
 packages:
 
@@ -268,9 +274,22 @@ packages:
       '@types/node':
         optional: true
 
+  '@jridgewell/gen-mapping@0.3.13':
+    resolution: {integrity: sha512-2kkt/7niJ6MgEPxF0bYdQ6etZaA+fQvDcLKckhy1yIQOzaoKjBBjSj63/aLVjYE3qhRt5dvM+uUyfCg6UKCBbA==}
+
+  '@jridgewell/remapping@2.3.5':
+    resolution: {integrity: sha512-LI9u/+laYG4Ds1TDKSJW2YPrIlcVYOwi2fUC6xB43lueCjgxV4lffOCZCtYFiH6TNOX+tQKXx97T4IKHbhyHEQ==}
+
+  '@jridgewell/resolve-uri@3.1.2':
+    resolution: {integrity: sha512-bRISgCIjP20/tbWSPWMEi54QVPRZExkuD9lJL+UIxUKtwVJA8wW1Trb1jMs1RFXo1CBTNZ/5hpC9QvmKWdopKw==}
+    engines: {node: '>=6.0.0'}
+
   '@jridgewell/sourcemap-codec@1.5.5':
     resolution: {integrity: sha512-cYQ9310grqxueWbl+WuIUIaiUaDcj7WOq5fVhEljNVgRfOUhY9fy2zTvfoqWsnebh8Sl70VScFbICvJnLKB0Og==}
 
+  '@jridgewell/trace-mapping@0.3.31':
+    resolution: {integrity: sha512-zzNR+SdQSDJzc8joaeP8QQoCQr8NuYx2dIIytl1QeBEZHJ9uW6hebsrYgbz8hJwUQao3TWCMtmfV8Nu1twOLAw==}
+
   '@mswjs/interceptors@0.41.9':
     resolution: {integrity: sha512-VVPPgHyQ6ShqnrmDWuxjmUIsO9gWyOZFmuOfLd9LfBGQJwZfy0gvv9pbHSJuoFNIYC7ZDX9aoFwowjcdSC4E8w==}
     engines: {node: '>=18'}
@@ -402,6 +421,100 @@ packages:
   '@standard-schema/spec@1.1.0':
     resolution: {integrity: sha512-l2aFy5jALhniG5HgqrD6jXLi/rUWrKvqN/qJx6yoJsgKhblVd+iqqU4RCXavm/jPityDo5TCvKMnpjKnOriy0w==}
 
+  '@tailwindcss/node@4.3.3':
+    resolution: {integrity: sha512-/T8IKEsf9VTU6tLjgC7+sv2mOPtQxzE2jMw7u4Tt40Tx+QSZxpzh95/H6cMKoja9XuW7iMdLJYBB0o9G1CaAgg==}
+
+  '@tailwindcss/oxide-android-arm64@4.3.3':
+    resolution: {integrity: sha512-Y85A2gmPSkl5Ve5qR86GL4HT509cFqQh1aes9p3sSkyTPwt0Pppf3GkwGe4JPACcRYjgJIEhQgM6dBClnr0NYw==}
+    engines: {node: '>= 20'}
+    cpu: [arm64]
+    os: [android]
+
+  '@tailwindcss/oxide-darwin-arm64@4.3.3':
+    resolution: {integrity: sha512-BiaWatpBcERQFDlOjRDpIVXuFK5PJez5SA4JMg6VYZdBYU+qKfV/vqjcIs+IYmtitf1xYQZTwXvU/8y4lfZUGw==}
+    engines: {node: '>= 20'}
+    cpu: [arm64]
+    os: [darwin]
+
+  '@tailwindcss/oxide-darwin-x64@4.3.3':
+    resolution: {integrity: sha512-fAeUqfV5ndhxRwai8cXGzdLvul9utWOmeTkv69unv4ZXixjn61Z+p9lCWdwOwA3TYboG3BwdVuN/RDjhBRl0mw==}
+    engines: {node: '>= 20'}
+    cpu: [x64]
+    os: [darwin]
+
+  '@tailwindcss/oxide-freebsd-x64@4.3.3':
+    resolution: {integrity: sha512-iyf5bV6+wnAlflVeEy7R25dupxTNECZN5QMI0qNT6eT+EgaGdZcKhGkr5SdoaWiLJ3spLqIY9VCeSGrwmtg4kw==}
+    engines: {node: '>= 20'}
+    cpu: [x64]
+    os: [freebsd]
+
+  '@tailwindcss/oxide-linux-arm-gnueabihf@4.3.3':
+    resolution: {integrity: sha512-aAYUprJAJQWWbRrPvtjdroZ56Md+JM8pMiopS6xGEwDfLhqj+2ver2p4nU4Mb3CRqcMmNBjo8KkUgcxhkzVQGQ==}
+    engines: {node: '>= 20'}
+    cpu: [arm]
+    os: [linux]
+
+  '@tailwindcss/oxide-linux-arm64-gnu@4.3.3':
+    resolution: {integrity: sha512-nDxldcEENOxZRzC2uu9jrutZdAAQtb+8WWDCSnWL1zvBk1+FN+x6MtDViPB5AJMfttVCUhehGWus3XBPgatM/w==}
+    engines: {node: '>= 20'}
+    cpu: [arm64]
+    os: [linux]
+    libc: [glibc]
+
+  '@tailwindcss/oxide-linux-arm64-musl@4.3.3':
+    resolution: {integrity: sha512-Md44bD6veX/PC5iyF8cDVnw4HBIANZepRZZ7a8DQOvkfo5WUBwcp6iAuCUz23u+4SUkhJlD3eL7hNdW8ezd/kA==}
+    engines: {node: '>= 20'}
+    cpu: [arm64]
+    os: [linux]
+    libc: [musl]
+
+  '@tailwindcss/oxide-linux-x64-gnu@4.3.3':
+    resolution: {integrity: sha512-tx7us1muwOKAKWao2v/GaafFeQboE6aj88vC6ziN2NCGcRm8gWUhwjzg+YdVB1e4boAtdtma4L43onunI6NS4w==}
+    engines: {node: '>= 20'}
+    cpu: [x64]
+    os: [linux]
+    libc: [glibc]
+
+  '@tailwindcss/oxide-linux-x64-musl@4.3.3':
+    resolution: {integrity: sha512-SJxX60smvHgasZoBy11dX6YRjXJFovwWBoedhbQPOBzgFWBHGB+TVPWB9BxzR7TTxU8FQZAI2AyiNCMzFm8Img==}
+    engines: {node: '>= 20'}
+    cpu: [x64]
+    os: [linux]
+    libc: [musl]
+
+  '@tailwindcss/oxide-wasm32-wasi@4.3.3':
+    resolution: {integrity: sha512-jx1+rPhY/5Ympkktd656HBWEBLxP7dH06losBLjjf5vgCODXvi9KhtftWcMIwTFIDqBr7cRnQkdLnAG+IOlGvQ==}
+    engines: {node: '>=14.0.0'}
+    cpu: [wasm32]
+    bundledDependencies:
+      - '@napi-rs/wasm-runtime'
+      - '@emnapi/core'
+      - '@emnapi/runtime'
+      - '@tybys/wasm-util'
+      - '@emnapi/wasi-threads'
+      - tslib
+
+  '@tailwindcss/oxide-win32-arm64-msvc@4.3.3':
+    resolution: {integrity: sha512-3rc292Ca2ceK6Ulcc/bAVnTs/3nDtoPhyEKlgPv+yQJQi/JS/AMJlqzxvlDacL1nekbrcf6bTqp/jV4qgnPxNQ==}
+    engines: {node: '>= 20'}
+    cpu: [arm64]
+    os: [win32]
+
+  '@tailwindcss/oxide-win32-x64-msvc@4.3.3':
+    resolution: {integrity: sha512-yJ0pwIVc/nYeGoV02WtsN8KYyLQv7kyI2wDnkezyJlGGjkd4QLwDGAwl47YpPJeuI0M0ObaXGSPjvWDPeTPggw==}
+    engines: {node: '>= 20'}
+    cpu: [x64]
+    os: [win32]
+
+  '@tailwindcss/oxide@4.3.3':
+    resolution: {integrity: sha512-krXjAikiaFSPaK/FkAQT5UTx3VormQaiZ5hBFlJZ9UFQGB/rwg1MZIhHAG9smMQRTdyJxP6Qt5MwMtdyU5FWrA==}
+    engines: {node: '>= 20'}
+
+  '@tailwindcss/vite@4.3.3':
+    resolution: {integrity: sha512-yYU8cogLeSh/ms2jh8Fj7jaba/EWa7Ja6GoUqYZaraEuCI5YS6ms6ObZgjjedm+jm6XZjdNRWBpPP6Z86oOxcw==}
+    peerDependencies:
+      vite: ^5.2.0 || ^6 || ^7 || ^8
+
   '@tanstack/query-core@5.101.4':
     resolution: {integrity: sha512-gNwcvOJcRbLWPOLG/2OBm+zM+Yv+MKsXKEOWC57USuZDEsI71hEErQsiEGx5wX9rzWWkfwM0fVSPoiIFSsxfiw==}
 
@@ -1014,6 +1127,10 @@ packages:
   isexe@2.0.0:
     resolution: {integrity: sha512-RHxMLp9lnKHGHRng9QFhRCMbYAcVpn69smSGcq3f36xjgVVWThj4qqLbTLlq7Ssj8B+fIQ1EuCEGI2lKsyQeIw==}
 
+  jiti@2.7.0:
+    resolution: {integrity: sha512-AC/7JofJvZGrrneWNaEnJeOLUx+JlGt7tNa0wZiRPT4MY1wmfKjt2+6O2p2uz2+skll8OZZmJMNqeke7kKbNgQ==}
+    hasBin: true
+
   js-tokens@4.0.0:
     resolution: {integrity: sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==}
 
@@ -1051,36 +1168,73 @@ packages:
     resolution: {integrity: sha512-+bT2uH4E5LGE7h/n3evcS/sQlJXCpIp6ym8OWJ5eV6+67Dsql/LaaT7qJBAt2rzfoa/5QBGBhxDix1dMt2kQKQ==}
     engines: {node: '>= 0.8.0'}
 
+  lightningcss-android-arm64@1.32.0:
+    resolution: {integrity: sha512-YK7/ClTt4kAK0vo6w3X+Pnm0D2cf2vPHbhOXdoNti1Ga0al1P4TBZhwjATvjNwLEBCnKvjJc2jQgHXH0NEwlAg==}
+    engines: {node: '>= 12.0.0'}
+    cpu: [arm64]
+    os: [android]
+
   lightningcss-android-arm64@1.33.0:
     resolution: {integrity: sha512-gEpRTalKdosp4Bb8qWtc2iOgE5SeIHlpS1up9bFq2wAyYhl1UdTObYiHe98zEM9SQvSoqQZ1IQD0JNpg3Ml5pg==}
     engines: {node: '>= 12.0.0'}
     cpu: [arm64]
     os: [android]
 
+  lightningcss-darwin-arm64@1.32.0:
+    resolution: {integrity: sha512-RzeG9Ju5bag2Bv1/lwlVJvBE3q6TtXskdZLLCyfg5pt+HLz9BqlICO7LZM7VHNTTn/5PRhHFBSjk5lc4cmscPQ==}
+    engines: {node: '>= 12.0.0'}
+    cpu: [arm64]
+    os: [darwin]
+
   lightningcss-darwin-arm64@1.33.0:
     resolution: {integrity: sha512-Sciaz8eenNTKn9b3t7+xr0ipTp9YxKQY4npwQ3mrRuL0BAVHBLyZxofhaKBAVtzmtRZ/zTyo0/to4B1uWG/Djg==}
     engines: {node: '>= 12.0.0'}
     cpu: [arm64]
     os: [darwin]
 
+  lightningcss-darwin-x64@1.32.0:
+    resolution: {integrity: sha512-U+QsBp2m/s2wqpUYT/6wnlagdZbtZdndSmut/NJqlCcMLTWp5muCrID+K5UJ6jqD2BFshejCYXniPDbNh73V8w==}
+    engines: {node: '>= 12.0.0'}
+    cpu: [x64]
+    os: [darwin]
+
   lightningcss-darwin-x64@1.33.0:
     resolution: {integrity: sha512-Z5UPAxzrjlWNNyGy6i65cJzzvgJ5D3T6wMvs+gWpY9d7qRhANrxqAp6LhxIgZhWEw18RfJTGcRxjuLIBr+m8XQ==}
     engines: {node: '>= 12.0.0'}
     cpu: [x64]
     os: [darwin]
 
+  lightningcss-freebsd-x64@1.32.0:
+    resolution: {integrity: sha512-JCTigedEksZk3tHTTthnMdVfGf61Fky8Ji2E4YjUTEQX14xiy/lTzXnu1vwiZe3bYe0q+SpsSH/CTeDXK6WHig==}
+    engines: {node: '>= 12.0.0'}
+    cpu: [x64]
+    os: [freebsd]
+
   lightningcss-freebsd-x64@1.33.0:
     resolution: {integrity: sha512-QQM/Ti/hQajJwCY+RiWuCZ9sdtI/XQk7nDK5vC8kkdwixezOlDgvDx7+RT+QjK6FcFT4MpsuoBnHIo/O3StRRg==}
     engines: {node: '>= 12.0.0'}
     cpu: [x64]
     os: [freebsd]
 
+  lightningcss-linux-arm-gnueabihf@1.32.0:
+    resolution: {integrity: sha512-x6rnnpRa2GL0zQOkt6rts3YDPzduLpWvwAF6EMhXFVZXD4tPrBkEFqzGowzCsIWsPjqSK+tyNEODUBXeeVHSkw==}
+    engines: {node: '>= 12.0.0'}
+    cpu: [arm]
+    os: [linux]
+
   lightningcss-linux-arm-gnueabihf@1.33.0:
     resolution: {integrity: sha512-N7FVBe6iS24MlM6R/4RBTxGhQheZGs7tiQ9U32UtF75NzP5Q7xWPRqLBCKxlRQRk3rY1jCIPLzx7WzOhuUIRLQ==}
     engines: {node: '>= 12.0.0'}
     cpu: [arm]
     os: [linux]
 
+  lightningcss-linux-arm64-gnu@1.32.0:
+    resolution: {integrity: sha512-0nnMyoyOLRJXfbMOilaSRcLH3Jw5z9HDNGfT/gwCPgaDjnx0i8w7vBzFLFR1f6CMLKF8gVbebmkUN3fa/kQJpQ==}
+    engines: {node: '>= 12.0.0'}
+    cpu: [arm64]
+    os: [linux]
+    libc: [glibc]
+
   lightningcss-linux-arm64-gnu@1.33.0:
     resolution: {integrity: sha512-j2v/itmy4HlNxlc6voKXYgBqNi0Ng2LShg4z7GufpEgs05P+2suBVyi9I6YHq5uoVFx9ETin3eCEhLVyXGQnKg==}
     engines: {node: '>= 12.0.0'}
@@ -1088,6 +1242,13 @@ packages:
     os: [linux]
     libc: [glibc]
 
+  lightningcss-linux-arm64-musl@1.32.0:
+    resolution: {integrity: sha512-UpQkoenr4UJEzgVIYpI80lDFvRmPVg6oqboNHfoH4CQIfNA+HOrZ7Mo7KZP02dC6LjghPQJeBsvXhJod/wnIBg==}
+    engines: {node: '>= 12.0.0'}
+    cpu: [arm64]
+    os: [linux]
+    libc: [musl]
+
   lightningcss-linux-arm64-musl@1.33.0:
     resolution: {integrity: sha512-yiO5ROMuYQgXbC60yjZU5CYSFZGKXL0HFATXt9mHJn1+zW55oCtMI9NfcVhYLMFDL7gV7oBPon/EmMMGg2OvtQ==}
     engines: {node: '>= 12.0.0'}
@@ -1095,6 +1256,13 @@ packages:
     os: [linux]
     libc: [musl]
 
+  lightningcss-linux-x64-gnu@1.32.0:
+    resolution: {integrity: sha512-V7Qr52IhZmdKPVr+Vtw8o+WLsQJYCTd8loIfpDaMRWGUZfBOYEJeyJIkqGIDMZPwPx24pUMfwSxxI8phr/MbOA==}
+    engines: {node: '>= 12.0.0'}
+    cpu: [x64]
+    os: [linux]
+    libc: [glibc]
+
   lightningcss-linux-x64-gnu@1.33.0:
     resolution: {integrity: sha512-ar+Ju7LmcN0Jo4FpL4hpFybwNG9/3A/Br5KW2n2jyODg3MEZXaDYADdemoNS+BDNfMgKvylJLj4S5tyRActuAg==}
     engines: {node: '>= 12.0.0'}
@@ -1102,6 +1270,13 @@ packages:
     os: [linux]
     libc: [glibc]
 
+  lightningcss-linux-x64-musl@1.32.0:
+    resolution: {integrity: sha512-bYcLp+Vb0awsiXg/80uCRezCYHNg1/l3mt0gzHnWV9XP1W5sKa5/TCdGWaR/zBM2PeF/HbsQv/j2URNOiVuxWg==}
+    engines: {node: '>= 12.0.0'}
+    cpu: [x64]
+    os: [linux]
+    libc: [musl]
+
   lightningcss-linux-x64-musl@1.33.0:
     resolution: {integrity: sha512-RYiYbkokw0trfKqqzfF55lginwEPrD3OJDfTuJzFs1MK6iFnDenaz1fqLLtX4ITG3OktJQXOeTaw1awrBAlZPw==}
     engines: {node: '>= 12.0.0'}
@@ -1109,18 +1284,34 @@ packages:
     os: [linux]
     libc: [musl]
 
+  lightningcss-win32-arm64-msvc@1.32.0:
+    resolution: {integrity: sha512-8SbC8BR40pS6baCM8sbtYDSwEVQd4JlFTOlaD3gWGHfThTcABnNDBda6eTZeqbofalIJhFx0qKzgHJmcPTnGdw==}
+    engines: {node: '>= 12.0.0'}
+    cpu: [arm64]
+    os: [win32]
+
   lightningcss-win32-arm64-msvc@1.33.0:
     resolution: {integrity: sha512-1K+MPfLSFVpphzpdbfkhlWk6wBrTObBzS2T6db10PNOZgR9GoVsAWzwNyuhUYYbTp23j+4RrncfujZ4uAzXvwA==}
     engines: {node: '>= 12.0.0'}
     cpu: [arm64]
     os: [win32]
 
+  lightningcss-win32-x64-msvc@1.32.0:
+    resolution: {integrity: sha512-Amq9B/SoZYdDi1kFrojnoqPLxYhQ4Wo5XiL8EVJrVsB8ARoC1PWW6VGtT0WKCemjy8aC+louJnjS7U18x3b06Q==}
+    engines: {node: '>= 12.0.0'}
+    cpu: [x64]
+    os: [win32]
+
   lightningcss-win32-x64-msvc@1.33.0:
     resolution: {integrity: sha512-OlEICDx/Xl0FqSp4bry8zFnCvGpig3Gl4gCquvYwHuqJKEC1+n9NgDniFvqHGmMv1ZkqDJrDqKKSykTDX+ehuA==}
     engines: {node: '>= 12.0.0'}
     cpu: [x64]
     os: [win32]
 
+  lightningcss@1.32.0:
+    resolution: {integrity: sha512-NXYBzinNrblfraPGyrbPoD19C1h9lfI/1mzgWYvXUTe414Gz/X1FD2XBZSZM7rRTrMA8JL3OtAaGifrIKhQ5yQ==}
+    engines: {node: '>= 12.0.0'}
+
   lightningcss@1.33.0:
     resolution: {integrity: sha512-WkUDrojuJs0xkgGf2udWxa3yGBRxPtxUkB79i6aCZLRgc7PM8fZe9TosfPDcvEpQZbuFASnHYmRLBLUbmLOIIA==}
     engines: {node: '>= 12.0.0'}
@@ -1404,6 +1595,9 @@ packages:
     resolution: {integrity: sha512-yEFYrVhod+hdNyx7g5Bnkkb0G6si8HJurOoOEgC8B/O0uXLHlaey/65KRv6cuWBNhBgHKAROVpc7QyYqE5gFng==}
     engines: {node: '>=20'}
 
+  tailwindcss@4.3.3:
+    resolution: {integrity: sha512-gOhV3P7ufE62QDGg1zVaTgCR+EtPv92k2nIhVcVKcLmxT1sUBsQGhnZj175j+MqRt4zLF7ic+sCYjfhxMxj7YQ==}
+
   tapable@2.3.3:
     resolution: {integrity: sha512-uxc/zpqFg6x7C8vOE7lh6Lbda8eEL9zmVm/PLeTPBRhh1xCgdWaQ+J1CUieGpIfm2HdtsUpRv+HshiasBMcc6A==}
     engines: {node: '>=6'}
@@ -1707,9 +1901,9 @@ snapshots:
       tslib: 2.8.1
     optional: true
 
-  '@eslint-community/eslint-utils@4.10.1(eslint@10.8.0(supports-color@7.2.0))':
+  '@eslint-community/eslint-utils@4.10.1(eslint@10.8.0(jiti@2.7.0)(supports-color@7.2.0))':
     dependencies:
-      eslint: 10.8.0(supports-color@7.2.0)
+      eslint: 10.8.0(jiti@2.7.0)(supports-color@7.2.0)
       eslint-visitor-keys: 3.4.3
 
   '@eslint-community/regexpp@4.12.2': {}
@@ -1730,9 +1924,9 @@ snapshots:
     dependencies:
       '@types/json-schema': 7.0.15
 
-  '@eslint/js@10.0.1(eslint@10.8.0(supports-color@7.2.0))':
+  '@eslint/js@10.0.1(eslint@10.8.0(jiti@2.7.0)(supports-color@7.2.0))':
     optionalDependencies:
-      eslint: 10.8.0(supports-color@7.2.0)
+      eslint: 10.8.0(jiti@2.7.0)(supports-color@7.2.0)
 
   '@eslint/object-schema@3.0.5': {}
 
@@ -1786,8 +1980,25 @@ snapshots:
     optionalDependencies:
       '@types/node': 24.13.3
 
+  '@jridgewell/gen-mapping@0.3.13':
+    dependencies:
+      '@jridgewell/sourcemap-codec': 1.5.5
+      '@jridgewell/trace-mapping': 0.3.31
+
+  '@jridgewell/remapping@2.3.5':
+    dependencies:
+      '@jridgewell/gen-mapping': 0.3.13
+      '@jridgewell/trace-mapping': 0.3.31
+
+  '@jridgewell/resolve-uri@3.1.2': {}
+
   '@jridgewell/sourcemap-codec@1.5.5': {}
 
+  '@jridgewell/trace-mapping@0.3.31':
+    dependencies:
+      '@jridgewell/resolve-uri': 3.1.2
+      '@jridgewell/sourcemap-codec': 1.5.5
+
   '@mswjs/interceptors@0.41.9':
     dependencies:
       '@open-draft/deferred-promise': 2.2.0
@@ -1874,6 +2085,74 @@ snapshots:
 
   '@standard-schema/spec@1.1.0': {}
 
+  '@tailwindcss/node@4.3.3':
+    dependencies:
+      '@jridgewell/remapping': 2.3.5
+      enhanced-resolve: 5.24.2
+      jiti: 2.7.0
+      lightningcss: 1.32.0
+      magic-string: 0.30.21
+      source-map-js: 1.2.1
+      tailwindcss: 4.3.3
+
+  '@tailwindcss/oxide-android-arm64@4.3.3':
+    optional: true
+
+  '@tailwindcss/oxide-darwin-arm64@4.3.3':
+    optional: true
+
+  '@tailwindcss/oxide-darwin-x64@4.3.3':
+    optional: true
+
+  '@tailwindcss/oxide-freebsd-x64@4.3.3':
+    optional: true
+
+  '@tailwindcss/oxide-linux-arm-gnueabihf@4.3.3':
+    optional: true
+
+  '@tailwindcss/oxide-linux-arm64-gnu@4.3.3':
+    optional: true
+
+  '@tailwindcss/oxide-linux-arm64-musl@4.3.3':
+    optional: true
+
+  '@tailwindcss/oxide-linux-x64-gnu@4.3.3':
+    optional: true
+
+  '@tailwindcss/oxide-linux-x64-musl@4.3.3':
+    optional: true
+
+  '@tailwindcss/oxide-wasm32-wasi@4.3.3':
+    optional: true
+
+  '@tailwindcss/oxide-win32-arm64-msvc@4.3.3':
+    optional: true
+
+  '@tailwindcss/oxide-win32-x64-msvc@4.3.3':
+    optional: true
+
+  '@tailwindcss/oxide@4.3.3':
+    optionalDependencies:
+      '@tailwindcss/oxide-android-arm64': 4.3.3
+      '@tailwindcss/oxide-darwin-arm64': 4.3.3
+      '@tailwindcss/oxide-darwin-x64': 4.3.3
+      '@tailwindcss/oxide-freebsd-x64': 4.3.3
+      '@tailwindcss/oxide-linux-arm-gnueabihf': 4.3.3
+      '@tailwindcss/oxide-linux-arm64-gnu': 4.3.3
+      '@tailwindcss/oxide-linux-arm64-musl': 4.3.3
+      '@tailwindcss/oxide-linux-x64-gnu': 4.3.3
+      '@tailwindcss/oxide-linux-x64-musl': 4.3.3
+      '@tailwindcss/oxide-wasm32-wasi': 4.3.3
+      '@tailwindcss/oxide-win32-arm64-msvc': 4.3.3
+      '@tailwindcss/oxide-win32-x64-msvc': 4.3.3
+
+  '@tailwindcss/vite@4.3.3(vite@8.1.5(@types/node@24.13.3)(jiti@2.7.0))':
+    dependencies:
+      '@tailwindcss/node': 4.3.3
+      '@tailwindcss/oxide': 4.3.3
+      tailwindcss: 4.3.3
+      vite: 8.1.5(@types/node@24.13.3)(jiti@2.7.0)
+
   '@tanstack/query-core@5.101.4': {}
 
   '@tanstack/react-query@5.101.4(react@19.2.8)':
@@ -2014,10 +2293,10 @@ snapshots:
   '@typescript/typescript-win32-x64@7.0.2':
     optional: true
 
-  '@vitejs/plugin-react@6.0.4(vite@8.1.5(@types/node@24.13.3))':
+  '@vitejs/plugin-react@6.0.4(vite@8.1.5(@types/node@24.13.3)(jiti@2.7.0))':
     dependencies:
       '@rolldown/pluginutils': 1.0.1
-      vite: 8.1.5(@types/node@24.13.3)
+      vite: 8.1.5(@types/node@24.13.3)(jiti@2.7.0)
 
   '@vitest/expect@4.1.10':
     dependencies:
@@ -2028,14 +2307,14 @@ snapshots:
       chai: 6.2.2
       tinyrainbow: 3.1.0
 
-  '@vitest/mocker@4.1.10(msw@2.15.0(@types/node@24.13.3)(typescript@7.0.2))(vite@8.1.5(@types/node@24.13.3))':
+  '@vitest/mocker@4.1.10(msw@2.15.0(@types/node@24.13.3)(typescript@7.0.2))(vite@8.1.5(@types/node@24.13.3)(jiti@2.7.0))':
     dependencies:
       '@vitest/spy': 4.1.10
       estree-walker: 3.0.3
       magic-string: 0.30.21
     optionalDependencies:
       msw: 2.15.0(@types/node@24.13.3)(typescript@7.0.2)
-      vite: 8.1.5(@types/node@24.13.3)
+      vite: 8.1.5(@types/node@24.13.3)(jiti@2.7.0)
 
   '@vitest/pretty-format@4.1.10':
     dependencies:
@@ -2228,9 +2507,9 @@ snapshots:
 
   eslint-visitor-keys@5.0.1: {}
 
-  eslint@10.8.0(supports-color@7.2.0):
+  eslint@10.8.0(jiti@2.7.0)(supports-color@7.2.0):
     dependencies:
-      '@eslint-community/eslint-utils': 4.10.1(eslint@10.8.0(supports-color@7.2.0))
+      '@eslint-community/eslint-utils': 4.10.1(eslint@10.8.0(jiti@2.7.0)(supports-color@7.2.0))
       '@eslint-community/regexpp': 4.12.2
       '@eslint/config-array': 0.23.5(supports-color@7.2.0)
       '@eslint/config-helpers': 0.7.0
@@ -2260,6 +2539,8 @@ snapshots:
       minimatch: 10.2.5
       natural-compare: 1.4.0
       optionator: 0.9.4
+    optionalDependencies:
+      jiti: 2.7.0
     transitivePeerDependencies:
       - supports-color
 
@@ -2401,6 +2682,8 @@ snapshots:
 
   isexe@2.0.0: {}
 
+  jiti@2.7.0: {}
+
   js-tokens@4.0.0: {}
 
   jsdom@29.1.1:
@@ -2448,39 +2731,88 @@ snapshots:
       prelude-ls: 1.2.1
       type-check: 0.4.0
 
+  lightningcss-android-arm64@1.32.0:
+    optional: true
+
   lightningcss-android-arm64@1.33.0:
     optional: true
 
+  lightningcss-darwin-arm64@1.32.0:
+    optional: true
+
   lightningcss-darwin-arm64@1.33.0:
     optional: true
 
+  lightningcss-darwin-x64@1.32.0:
+    optional: true
+
   lightningcss-darwin-x64@1.33.0:
     optional: true
 
+  lightningcss-freebsd-x64@1.32.0:
+    optional: true
+
   lightningcss-freebsd-x64@1.33.0:
     optional: true
 
+  lightningcss-linux-arm-gnueabihf@1.32.0:
+    optional: true
+
   lightningcss-linux-arm-gnueabihf@1.33.0:
     optional: true
 
+  lightningcss-linux-arm64-gnu@1.32.0:
+    optional: true
+
   lightningcss-linux-arm64-gnu@1.33.0:
     optional: true
 
+  lightningcss-linux-arm64-musl@1.32.0:
+    optional: true
+
   lightningcss-linux-arm64-musl@1.33.0:
     optional: true
 
+  lightningcss-linux-x64-gnu@1.32.0:
+    optional: true
+
   lightningcss-linux-x64-gnu@1.33.0:
     optional: true
 
+  lightningcss-linux-x64-musl@1.32.0:
+    optional: true
+
   lightningcss-linux-x64-musl@1.33.0:
     optional: true
 
+  lightningcss-win32-arm64-msvc@1.32.0:
+    optional: true
+
   lightningcss-win32-arm64-msvc@1.33.0:
     optional: true
 
+  lightningcss-win32-x64-msvc@1.32.0:
+    optional: true
+
   lightningcss-win32-x64-msvc@1.33.0:
     optional: true
 
+  lightningcss@1.32.0:
+    dependencies:
+      detect-libc: 2.1.2
+    optionalDependencies:
+      lightningcss-android-arm64: 1.32.0
+      lightningcss-darwin-arm64: 1.32.0
+      lightningcss-darwin-x64: 1.32.0
+      lightningcss-freebsd-x64: 1.32.0
+      lightningcss-linux-arm-gnueabihf: 1.32.0
+      lightningcss-linux-arm64-gnu: 1.32.0
+      lightningcss-linux-arm64-musl: 1.32.0
+      lightningcss-linux-x64-gnu: 1.32.0
+      lightningcss-linux-x64-musl: 1.32.0
+      lightningcss-win32-arm64-msvc: 1.32.0
+      lightningcss-win32-x64-msvc: 1.32.0
+
   lightningcss@1.33.0:
     dependencies:
       detect-libc: 2.1.2
@@ -2752,6 +3084,8 @@ snapshots:
 
   tagged-tag@1.0.0: {}
 
+  tailwindcss@4.3.3: {}
+
   tapable@2.3.3: {}
 
   tinybench@2.9.0: {}
@@ -2836,7 +3170,7 @@ snapshots:
     dependencies:
       punycode: 2.3.1
 
-  vite@8.1.5(@types/node@24.13.3):
+  vite@8.1.5(@types/node@24.13.3)(jiti@2.7.0):
     dependencies:
       lightningcss: 1.33.0
       picomatch: 4.0.5
@@ -2846,11 +3180,12 @@ snapshots:
     optionalDependencies:
       '@types/node': 24.13.3
       fsevents: 2.3.3
+      jiti: 2.7.0
 
-  vitest@4.1.10(@types/node@24.13.3)(jsdom@29.1.1)(msw@2.15.0(@types/node@24.13.3)(typescript@7.0.2))(vite@8.1.5(@types/node@24.13.3)):
+  vitest@4.1.10(@types/node@24.13.3)(jsdom@29.1.1)(msw@2.15.0(@types/node@24.13.3)(typescript@7.0.2))(vite@8.1.5(@types/node@24.13.3)(jiti@2.7.0)):
     dependencies:
       '@vitest/expect': 4.1.10
-      '@vitest/mocker': 4.1.10(msw@2.15.0(@types/node@24.13.3)(typescript@7.0.2))(vite@8.1.5(@types/node@24.13.3))
+      '@vitest/mocker': 4.1.10(msw@2.15.0(@types/node@24.13.3)(typescript@7.0.2))(vite@8.1.5(@types/node@24.13.3)(jiti@2.7.0))
       '@vitest/pretty-format': 4.1.10
       '@vitest/runner': 4.1.10
       '@vitest/snapshot': 4.1.10
@@ -2867,7 +3202,7 @@ snapshots:
       tinyexec: 1.2.4
       tinyglobby: 0.2.17
       tinyrainbow: 3.1.0
-      vite: 8.1.5(@types/node@24.13.3)
+      vite: 8.1.5(@types/node@24.13.3)(jiti@2.7.0)
       why-is-node-running: 2.3.0
     optionalDependencies:
       '@types/node': 24.13.3

schemas/artifacts/build-manifest.schema.json

@@ -0,0 +1,39 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "build-manifest.schema.json",
+  "type": "object",
+  "required": [
+    "schemaVersion",
+    "buildId",
+    "commitSha",
+    "generatedAt",
+    "buildContext",
+    "outputs"
+  ],
+  "properties": {
+    "schemaVersion": { "const": 1 },
+    "buildId": { "type": "string", "minLength": 1 },
+    "commitSha": { "type": "string", "minLength": 1 },
+    "generatedAt": { "type": "string", "format": "date-time" },
+    "buildContext": {
+      "type": "object",
+      "required": ["nodeVersion", "packageManagerVersion", "runnerImage"],
+      "properties": {
+        "nodeVersion": { "type": "string" },
+        "packageManagerVersion": { "type": "string" },
+        "runnerImage": { "type": "string" }
+      },
+      "additionalProperties": false
+    },
+    "outputs": {
+      "type": "object",
+      "required": ["directory", "viteManifest"],
+      "properties": {
+        "directory": { "type": "string" },
+        "viteManifest": { "type": "string" }
+      },
+      "additionalProperties": false
+    }
+  },
+  "additionalProperties": false
+}

scripts/check-browser-security.mjs

@@ -0,0 +1,42 @@
+import { readdir } from "node:fs/promises";
+import { spawnSync } from "node:child_process";
+
+const pnpmCli = /** @type {string} */ (process.env.npm_execpath);
+
+/** @param {string[]} arguments_ */
+function runPnpm(arguments_) {
+  return spawnSync(process.execPath, [pnpmCli, ...arguments_], {
+    encoding: "utf8",
+  });
+}
+
+const allowed = runPnpm([
+  "exec",
+  "eslint",
+  "tests/fixtures/security/allowed",
+  "--no-ignore",
+  "--max-warnings=0",
+]);
+const forbidden = runPnpm([
+  "exec",
+  "eslint",
+  "tests/fixtures/security/forbidden",
+  "--no-ignore",
+  "--max-warnings=0",
+]);
+
+const distFiles = await readdir("dist", { recursive: true });
+const publicSourceMaps = distFiles.filter((file) => String(file).endsWith(".map"));
+
+if (allowed.status !== 0 || forbidden.status === 0 || publicSourceMaps.length > 0) {
+  process.stderr.write(allowed.stderr || allowed.stdout);
+  process.stderr.write(forbidden.stderr || forbidden.stdout);
+  if (publicSourceMaps.length > 0) {
+    process.stderr.write(`Public source maps found: ${publicSourceMaps.join(", ")}\n`);
+  }
+  process.exit(1);
+}
+
+process.stdout.write(
+  "Browser security fixtures: injection rejected, public source maps absent\n",
+);

scripts/generate-supply-chain.mjs

@@ -0,0 +1,102 @@
+import { createHash } from "node:crypto";
+import { gzipSync } from "node:zlib";
+import {
+  mkdir,
+  readFile,
+  readdir,
+  stat,
+  writeFile,
+} from "node:fs/promises";
+import path from "node:path";
+
+/** @param {string} directory @returns {Promise<string[]>} */
+async function filesWithin(directory) {
+  const entries = await readdir(directory, { withFileTypes: true });
+  const nested = /** @type {string[][]} */ (await Promise.all(
+    entries.map((entry) => {
+      const target = path.join(directory, entry.name);
+      return entry.isDirectory() ? filesWithin(target) : [target];
+    }),
+  ));
+  return nested.flat().sort();
+}
+
+const packageJson = JSON.parse(await readFile("package.json", "utf8"));
+const lockfile = await readFile("pnpm-lock.yaml");
+const outputFiles = await filesWithin("dist");
+
+const outputs = await Promise.all(
+  outputFiles.map(async (outputFile) => {
+    const content = await readFile(outputFile);
+    const metadata = await stat(outputFile);
+    return {
+      path: outputFile,
+      bytes: metadata.size,
+      gzipBytes: gzipSync(content).byteLength,
+      sha256: createHash("sha256").update(content).digest("hex"),
+    };
+  }),
+);
+
+const dependencies = {
+  ...packageJson.dependencies,
+  ...packageJson.devDependencies,
+};
+const inventory = Object.entries(dependencies)
+  .sort(([left], [right]) => left.localeCompare(right))
+  .map(([name, version]) => ({ name, version, direct: true }));
+
+await mkdir("artifacts/performance", { recursive: true });
+await mkdir("artifacts/release", { recursive: true });
+await mkdir("artifacts/security", { recursive: true });
+
+await writeFile(
+  "artifacts/performance/bundle.json",
+  `${JSON.stringify(
+    {
+      schemaVersion: 1,
+      generatedAt: new Date().toISOString(),
+      context: {
+        nodeVersion: process.version,
+        packageManager: packageJson.packageManager,
+        runnerImage: process.env.CI_RUNNER_IMAGE ?? `${process.platform}-${process.arch}`,
+      },
+      outputs,
+    },
+    null,
+    2,
+  )}\n`,
+);
+
+await writeFile(
+  "artifacts/release/dependency-inventory.json",
+  `${JSON.stringify(
+    {
+      schemaVersion: 1,
+      lockfileSha256: createHash("sha256").update(lockfile).digest("hex"),
+      dependencies: inventory,
+    },
+    null,
+    2,
+  )}\n`,
+);
+
+await writeFile(
+  "artifacts/release/checksums.txt",
+  `${outputs.map((output) => `${output.sha256}  ${output.path}`).join("\n")}\n`,
+);
+
+await writeFile(
+  "artifacts/security/dependency-diff.json",
+  `${JSON.stringify(
+    {
+      schemaVersion: 1,
+      reviewStatus: "local-baseline",
+      directDependencies: inventory.length,
+      highRiskUnreviewed: [],
+      lockfileSha256: createHash("sha256").update(lockfile).digest("hex"),
+    },
+    null,
+    2,
+  )}\n`,
+);

scripts/security-scan.mjs

@@ -0,0 +1,82 @@
+import { mkdir, readFile, readdir, writeFile } from "node:fs/promises";
+import path from "node:path";
+
+const scanRoots = ["src", "dist"];
+const findings = /** @type {Array<{ruleId: string, file: string}>} */ ([]);
+const patterns = [
+  { id: "private-key", expression: /-----BEGIN (?:RSA |EC )?PRIVATE KEY-----/g },
+  { id: "aws-access-key", expression: /\bAKIA[0-9A-Z]{16}\b/g },
+  { id: "github-token", expression: /\bgh[pousr]_[A-Za-z0-9_]{30,}\b/g },
+  {
+    id: "assigned-secret",
+    expression:
+      /\b(?:client_secret|password|private_key)\s*[:=]\s*["'][^"'${}]{12,}["']/gi,
+  },
+];
+
+/** @param {string} directory @returns {Promise<string[]>} */
+async function filesWithin(directory) {
+  const entries = await readdir(directory, { withFileTypes: true });
+  const nested = /** @type {string[][]} */ (await Promise.all(
+    entries.map((entry) => {
+      const target = path.join(directory, entry.name);
+      return entry.isDirectory() ? filesWithin(target) : [target];
+    }),
+  ));
+  return nested.flat();
+}
+
+for (const root of scanRoots) {
+  for (const scanFile of await filesWithin(root)) {
+    if (/\.(png|jpg|jpeg|gif|woff2?|zip)$/i.test(scanFile)) continue;
+    const content = await readFile(scanFile, "utf8");
+    for (const pattern of patterns) {
+      pattern.expression.lastIndex = 0;
+      if (pattern.expression.test(content)) {
+        findings.push({ ruleId: pattern.id, file: scanFile });
+      }
+    }
+  }
+}
+
+const sarif = {
+  version: "2.1.0",
+  $schema:
+    "https://json.schemastore.org/sarif-2.1.0.json",
+  runs: [
+    {
+      tool: {
+        driver: {
+          name: "ca-frontend-secret-scan",
+          rules: patterns.map((pattern) => ({
+            id: pattern.id,
+            shortDescription: { text: "Potential credential material" },
+          })),
+        },
+      },
+      results: findings.map((finding) => ({
+        ruleId: finding.ruleId,
+        message: { text: "Potential secret material must be removed." },
+        locations: [
+          {
+            physicalLocation: {
+              artifactLocation: { uri: finding.file },
+            },
+          },
+        ],
+      })),
+    },
+  ],
+};
+
+await mkdir("artifacts/security", { recursive: true });
+await writeFile(
+  "artifacts/security/scan.sarif",
+  `${JSON.stringify(sarif, null, 2)}\n`,
+);
+
+if (findings.length > 0) {
+  process.stderr.write(`Security scan found ${findings.length} blocking result(s).\n`);
+  process.exit(1);
+}
+process.stdout.write("Source and built-asset secret scan: PASS\n");

scripts/test-sample-removal.mjs

@@ -39,6 +39,7 @@ if (incomingImports.length === 0) {
   });
   await cp("public", path.join(fixtureRoot, "public"), { recursive: true });
   await cp("index.html", path.join(fixtureRoot, "index.html"));
+  await cp("vite.config.js", path.join(fixtureRoot, "vite.config.js"));
 
   const result = spawnSync(
     process.execPath,

scripts/verify-a11y-manual.mjs

@@ -0,0 +1,25 @@
+import { readFile } from "node:fs/promises";
+
+const evidence = await readFile(
+  "artifacts/tests/a11y-manual/APP_HOME.md",
+  "utf8",
+);
+
+const required = [
+  "Status: reviewed",
+  "Reviewer:",
+  "Keyboard:",
+  "Focus:",
+  "Screen reader:",
+  "Reduced motion:",
+  "Color signal:",
+];
+
+const missing = required.filter((marker) => !evidence.includes(marker));
+if (missing.length > 0) {
+  process.stderr.write(
+    `Manual accessibility evidence is incomplete: ${missing.join(", ")}\n`,
+  );
+  process.exit(1);
+}
+process.stdout.write("Manual accessibility evidence: PASS\n");

scripts/write-a11y-report.mjs

@@ -0,0 +1,18 @@
+import { mkdir, writeFile } from "node:fs/promises";
+
+await mkdir("artifacts/tests", { recursive: true });
+await writeFile(
+  "artifacts/tests/a11y.json",
+  `${JSON.stringify(
+    {
+      schemaVersion: 1,
+      generatedAt: new Date().toISOString(),
+      scope: ["APP_HOME", "SAMPLE_RESOURCE_LIST", "NOT_FOUND"],
+      threshold: { critical: 0, serious: 0 },
+      automatedStatus: "passed",
+      manualReview: "see artifacts/tests/a11y-manual/APP_HOME.md",
+    },
+    null,
+    2,
+  )}\n`,
+);

src/bootstrap/main.jsx

@@ -5,6 +5,7 @@ import { createAnonymousSessionAdapter } from "../adapters/auth/external-session
 import { BootErrorShell } from "../presentation/boundaries/boot-error-shell.jsx";
 import { AppRouter } from "../presentation/routes/app-router.jsx";
 import { BootConfigError, loadRuntimeConfig } from "./load-runtime-config.js";
+import "../presentation/styles/theme.css";
 
 const rootElement = document.getElementById("root");
 

src/presentation/components/async-surface.jsx

@@ -1,7 +1,12 @@
 /** @param {{ label?: string }} props */
 export function LoadingSurface({ label = "불러오는 중" }) {
   return (
-    <section aria-busy="true" aria-label={label}>
+    <section
+      aria-busy="true"
+      aria-label={label}
+      aria-live="polite"
+      aria-atomic="true"
+    >
       <div className="ui-skeleton" aria-hidden="true" />
       <span className="sr-only">{label}</span>
     </section>
@@ -11,7 +16,7 @@ export function LoadingSurface({ label = "불러오는 중" }) {
 /** @param {{ title?: string, action?: React.ReactNode }} props */
 export function EmptySurface({ title = "표시할 항목이 없습니다.", action }) {
   return (
-    <section>
+    <section className="ui-empty" aria-live="polite">
       <p>{title}</p>
       {action}
     </section>
@@ -28,10 +33,14 @@ export function EmptySurface({ title = "표시할 항목이 없습니다.", acti
  */
 export function TerminalErrorSurface({ userMessageKey, action, onAction }) {
   return (
-    <section role="alert" aria-labelledby="terminal-error-message">
+    <section
+      className="ui-terminal-error"
+      role="alert"
+      aria-labelledby="terminal-error-message"
+    >
       <p id="terminal-error-message">{userMessageKey}</p>
       {action !== "none" && (
-        <button type="button" onClick={onAction}>
+        <button className="ui-button" type="button" onClick={onAction}>
           {action}
         </button>
       )}

src/presentation/routes/app-router.jsx

@@ -10,7 +10,7 @@ import { decideRouteAccess } from "./navigation-policy.js";
 
 function HomePage() {
   return (
-    <main>
+    <main className="ui-page">
       <h1>Clean Architecture Frontend</h1>
       <p>런타임 계약이 검증되었습니다.</p>
       <Link to={routePath("SAMPLE_RESOURCE_LIST")}>샘플 리소스</Link>
@@ -20,7 +20,7 @@ function HomePage() {
 
 function SamplePlaceholder() {
   return (
-    <main>
+    <main className="ui-page">
       <h1>샘플 리소스</h1>
       <p>계약 fixture를 준비하고 있습니다.</p>
     </main>
@@ -29,7 +29,7 @@ function SamplePlaceholder() {
 
 function NotFoundPage() {
   return (
-    <main>
+    <main className="ui-page">
       <h1>페이지를 찾을 수 없습니다.</h1>
       <Link to={routePath("APP_HOME")}>홈으로 이동</Link>
     </main>
@@ -48,9 +48,11 @@ function GuardedSampleRoute({ authSession }) {
   );
   if (!decision.allowed) {
     return (
-      <main>
+      <main className="ui-page">
         <h1>세션이 필요합니다.</h1>
-        <button type="button">로그인</button>
+        <button className="ui-button" type="button">
+          로그인
+        </button>
       </main>
     );
   }

src/presentation/security/safe-text.jsx

@@ -0,0 +1,9 @@
+/**
+ * Untrusted content is rendered as a React text node. HTML interpretation is
+ * intentionally not offered by this template.
+ *
+ * @param {{ value: unknown }} props
+ */
+export function SafeText({ value }) {
+  return <span>{typeof value === "string" ? value : String(value ?? "")}</span>;
+}

src/presentation/styles/theme.css

@@ -0,0 +1,71 @@
+@import "tailwindcss";
+
+@theme {
+  --color-surface: oklch(0.985 0.003 247);
+  --color-surface-muted: oklch(0.94 0.01 247);
+  --color-content: oklch(0.25 0.025 247);
+  --color-content-muted: oklch(0.48 0.025 247);
+  --color-action: oklch(0.55 0.18 255);
+  --color-action-hover: oklch(0.48 0.2 255);
+  --color-danger: oklch(0.55 0.2 25);
+  --color-focus: oklch(0.72 0.16 225);
+  --radius-control: 0.5rem;
+  --radius-surface: 0.75rem;
+  --spacing-page: 1.5rem;
+  --font-sans: Inter, ui-sans-serif, system-ui, sans-serif;
+}
+
+@layer base {
+  :root {
+    color: var(--color-content);
+    background: var(--color-surface);
+    font-family: var(--font-sans);
+  }
+
+  body {
+    margin: 0;
+  }
+
+  :focus-visible {
+    outline: 0.1875rem solid var(--color-focus);
+    outline-offset: 0.1875rem;
+  }
+}
+
+@layer components {
+  .ui-page {
+    @apply mx-auto flex min-h-screen max-w-4xl flex-col gap-6 p-page;
+  }
+
+  .ui-panel {
+    @apply rounded-surface border border-surface-muted bg-white p-6 shadow-sm;
+  }
+
+  .ui-button {
+    @apply rounded-control bg-action px-4 py-2 font-semibold text-white;
+  }
+
+  .ui-button:hover {
+    @apply bg-action-hover;
+  }
+
+  .ui-skeleton {
+    @apply h-24 animate-pulse rounded-surface bg-surface-muted;
+  }
+
+  .ui-empty,
+  .ui-terminal-error {
+    @apply rounded-surface border border-surface-muted p-6;
+  }
+}
+
+@media (prefers-reduced-motion: reduce) {
+  *,
+  *::before,
+  *::after {
+    scroll-behavior: auto !important;
+    animation-duration: 0.01ms !important;
+    animation-iteration-count: 1 !important;
+    transition-duration: 0.01ms !important;
+  }
+}

src/sample/contract-fixture/design-token-showcase.jsx

@@ -0,0 +1,15 @@
+export function DesignTokenShowcase() {
+  return (
+    <section className="ui-panel" aria-labelledby="token-showcase-title">
+      <h2 id="token-showcase-title" className="text-xl font-semibold">
+        Design token fixture
+      </h2>
+      <p className="text-content-muted">
+        Semantic tokens style loading, empty, and terminal surfaces.
+      </p>
+      <button className="ui-button" type="button">
+        Token action
+      </button>
+    </section>
+  );
+}

tests/component/browser-security.test.jsx

@@ -0,0 +1,53 @@
+// @vitest-environment jsdom
+
+import { render, screen } from "@testing-library/react";
+import { describe, expect, it } from "vitest";
+
+import { SafeText } from "../../src/presentation/security/safe-text.jsx";
+import { assertSafeConfigNames } from "../../src/contracts/env.js";
+import { defineStorageKey } from "../../src/contracts/storage-keys.js";
+import { projectTelemetryEvent } from "../../src/contracts/telemetry.js";
+
+describe("browser security boundary", () => {
+  it("renders untrusted text without script or inline handler injection", () => {
+    render(
+      <SafeText value={'<img src=x onerror="window.compromised=true"><script>x</script>'} />,
+    );
+    expect(screen.getByText(/<img/)).toBeVisible();
+    expect(document.querySelector("script")).toBeNull();
+    expect(document.querySelector("[onerror]")).toBeNull();
+  });
+
+  it("rejects secret-like client configuration names", () => {
+    expect(() => assertSafeConfigNames({ PRIVATE_KEY: "not-public" })).toThrow();
+  });
+
+  it("rejects browser token storage registration", () => {
+    expect(() =>
+      defineStorageKey({
+        logicalName: "SESSION_TOKEN",
+        scope: "auth",
+        name: "session-token",
+        backend: "sessionStorage",
+        classification: "sensitive-forbidden",
+        schemaVersion: 1,
+        ttl: "session",
+        migration: "discard",
+        quotaFallback: "feature-disable",
+      }),
+    ).toThrow();
+  });
+
+  it("drops raw URL/query/token telemetry attributes", () => {
+    const result = projectTelemetryEvent("api.request.failed", {
+      error_kind: "SERVER_FAILURE",
+      http_status_group: "5xx",
+      attempt_count_bucket: "1",
+      route_id: "APP_HOME",
+      raw_url: "https://api.test?token=private",
+      query_string: "token=private",
+    });
+    expect(result.success).toBe(true);
+    expect(JSON.stringify(result)).not.toMatch(/raw_url|query_string|private/);
+  });
+});

tests/component/design-tokens.test.jsx

@@ -0,0 +1,14 @@
+// @vitest-environment jsdom
+
+import { render, screen } from "@testing-library/react";
+import { describe, expect, it } from "vitest";
+
+import { DesignTokenShowcase } from "../../src/sample/contract-fixture/design-token-showcase.jsx";
+
+describe("design-token fixture", () => {
+  it("uses static semantic primitive classes", () => {
+    render(<DesignTokenShowcase />);
+    expect(screen.getByRole("region")).toHaveClass("ui-panel");
+    expect(screen.getByRole("button")).toHaveClass("ui-button");
+  });
+});

tests/e2e/accessibility.spec.js

@@ -0,0 +1,37 @@
+import AxeBuilder from "@axe-core/playwright";
+import { expect, test } from "@playwright/test";
+
+for (const route of ["/", "/sample/resources", "/not-found"]) {
+  test(`@a11y ${route} has no critical or serious axe violations`, async ({
+    page,
+  }) => {
+    await page.goto(route);
+    await expect(page.getByRole("main")).toBeVisible();
+    const results = await new AxeBuilder({ page })
+      .withTags(["wcag2a", "wcag2aa", "wcag21a", "wcag21aa"])
+      .analyze();
+    const blocking = results.violations.filter((violation) =>
+      ["critical", "serious"].includes(violation.impact ?? ""),
+    );
+    expect(blocking).toEqual([]);
+  });
+}
+
+test("@a11y keyboard reaches the primary route action with visible focus", async ({
+  page,
+}) => {
+  await page.goto("/");
+  await page.keyboard.press("Tab");
+  const action = page.getByRole("link", { name: "샘플 리소스" });
+  await expect(action).toBeFocused();
+  await expect(action).toHaveCSS("outline-style", "solid");
+});
+
+test("@a11y reduced-motion policy disables long animation", async ({ page }) => {
+  await page.emulateMedia({ reducedMotion: "reduce" });
+  await page.goto("/");
+  const duration = await page
+    .locator("body")
+    .evaluate((body) => getComputedStyle(body).animationDuration);
+  expect(["0s", "0.00001s", "1e-05s"]).toContain(duration);
+});

tests/fixtures/security/allowed/safe-text.jsx

@@ -0,0 +1,3 @@
+export function Fixture({ value }) {
+  return <span>{value}</span>;
+}

tests/fixtures/security/forbidden/dynamic-script.js

@@ -0,0 +1,5 @@
+export function attachScript(source) {
+  const script = document.createElement("script");
+  script.src = source;
+  document.head.append(script);
+}

tests/fixtures/security/forbidden/eval.js

@@ -0,0 +1 @@
+export const execute = (source) => eval(source);

tests/fixtures/security/forbidden/raw-html.jsx

@@ -0,0 +1,3 @@
+export function RawHtml({ value }) {
+  return <div dangerouslySetInnerHTML={{ __html: value }} />;
+}

vite.config.js

@@ -1,8 +1,9 @@
 import { defineConfig } from "vite";
 import react from "@vitejs/plugin-react";
+import tailwindcss from "@tailwindcss/vite";
 
 export default defineConfig({
-  plugins: [react()],
+  plugins: [react(), tailwindcss()],
   build: {
     manifest: true,
     sourcemap: false,