fix(lint): stop ESLint running out of memory on build artifacts

`cap sync` copies the whole standalone bundle into the native mobile
projects, and those copies are gitignored but sit outside a `dist`, so
the ignore lists missed them. They accounted for 187 MB of the 204 MB
that `dev:format-check` was parsing — including three copies each of
Spreadsheet (5.6 MB), typescript (3.5 MB) and pdf.worker (2.4 MB).
Feeding minified single-line bundles to @stylistic/indent and max-len
exhausted the default heap, so the run only ever died once you had built
for mobile. Nothing tracked under apps/mobile/{android,ios} is lintable,
so excluding them costs no coverage.

Peak RSS drops from 2.0 GB to 634 MB and the run finishes in 26 s.

Also excludes vendored third-party code from the format config, which is
a hazard rather than just noise: `dev:format-fix` would have reformatted
the pdf.js viewer, breaking both vendored_viewer.spec.ts and the patch
matching in update-viewer.ts.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

eslint.config.mjs

@@ -117,6 +117,17 @@ export default defineConfig(
     "apps/edit-docs/demo/*",
     "docs/*",
     "apps/web-clipper/lib/*",
+    // Build output that is gitignored but sits outside a `dist`, so it would otherwise be
+    // linted. `cap sync` copies the whole standalone bundle into the native projects, which
+    // adds ~165 MB of minified JS and makes ESLint run out of memory.
+    "apps/mobile/android/**",
+    "apps/mobile/ios/**",
+    "apps/*/out/**",
+    "apps/web-clipper/.output/**",
+    "site/**",
+    "**/test-output/**",
+    // A worktree here is a full second copy of the repository.
+    ".claude/worktrees/**",
     // TODO: check if we want to format packages here as well - for now skipping it
     "packages/*",
   ]),

eslint.format.config.mjs

@@ -30,7 +30,24 @@ export default defineConfig(
         "**/out-tsc",
         "apps/edit-docs/demo/*",
         "docs/*",
-        "apps/web-clipper/lib/*"
+        "apps/web-clipper/lib/*",
+        // Build output that is gitignored but sits outside a `dist`, so it would otherwise be
+        // linted. `cap sync` copies the whole standalone bundle into the native projects, which
+        // adds ~165 MB of minified JS and makes ESLint run out of memory.
+        "apps/mobile/android/**",
+        "apps/mobile/ios/**",
+        "apps/*/out/**",
+        "apps/web-clipper/.output/**",
+        "site/**",
+        "**/test-output/**",
+        "apps/web-clipper/.wxt/**",
+        // Vendored third-party code. `--fix` must never touch these: the pdf.js viewer is
+        // re-vendored verbatim from an upstream release, and `update-viewer.ts` locates our
+        // patches by matching upstream markup.
+        "packages/pdfjs-viewer/viewer/**",
+        "packages/splitjs/test/lib/**",
+        // A worktree here is a full second copy of the repository.
+        ".claude/worktrees/**"
     ]),
 
     {