v3: coverage tasks for both suites — deno task test:coverage runs the Deno tests of api/ and shared/ with coverage and writes the report to coverage/api, deno task test:web:coverage runs the Vitest suite with @vitest/coverage-v8 (at vitest's own 5.0.2) into coverage/web. Each prints a table and leaves an HTML report and an lcov.info. They write to separate folders because deno test --clean empties its whole output directory, which would take the frontend report with it. The frontend report counts src/ without src/test/ and the generated src/locales/; the backend report still lists api/test/helpers.ts and setup.ts, since deno.json has no coverage exclude and a separate deno coverage --exclude pass merged the raw profiles into different figures. No behaviour changes.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

vitest.config.ts

@@ -14,6 +14,13 @@ export default mergeConfig(
       restoreMocks: true,
       unstubGlobals: true,
       css: false,
+      coverage: {
+        provider: "v8",
+        include: ["src/**/*.{ts,tsx}"],
+        exclude: ["src/test/**", "src/locales/**"],
+        reporter: ["text", "html", "lcov"],
+        reportsDirectory: "coverage/web",
+      },
     },
   }),
 );