chore(renovate): ignore demos, examples, and visual-testing (#2957)

* chore(renovate): ignore demos, examples, and visual-testing

devtools/visual-testing/packages/harness depends on a locally-built
packages/superdoc/superdoc.tgz that does not exist in Renovate's clean
checkout, which makes pnpm install fail and breaks artifact updates on
every dep PR. Skipping that subtree (and the already-non-shipped
demos/examples) at discovery time avoids the issue and lets Renovate
focus on dependencies that actually ship.

Replaces the demos/examples packageRule (matchFileNames + enabled:false)
with a single top-level ignorePaths block.

* chore(renovate): preserve test/vendor ignore patterns from preset

ignorePaths is non-mergeable, so setting it at the top level replaced
the patterns inherited from :ignoreModulesAndTests via config:recommended.
That silently brought test package.json files (tests/visual,
tests/behavior, packages/superdoc/tests/cdn-smoke, etc.) back into
Renovate's scope. Re-list the preset's patterns explicitly so coverage
stays the same as before.

Author: caio-pizzol

renovate.json5

@@ -8,6 +8,18 @@
   ],
   "schedule": ["before 7am on monday"],
   "prConcurrentLimit": 5,
+  "ignorePaths": [
+    "**/node_modules/**",
+    "**/bower_components/**",
+    "**/vendor/**",
+    "**/__tests__/**",
+    "**/test/**",
+    "**/tests/**",
+    "**/__fixtures__/**",
+    "demos/**",
+    "examples/**",
+    "devtools/visual-testing/**"
+  ],
   "ignoreDeps": ["pdfjs-dist", "@hocuspocus/provider"],
   "packageRules": [
     {
@@ -18,12 +30,7 @@
       "groupName": "dev dependencies (patch)"
     },
     {
-      "description": "Ignore demos and examples — not shipped to users",
-      "matchFileNames": ["demos/**", "examples/**"],
-      "enabled": false
-    },
-    {
-      "description": "Don't touch vite — overridden with rolldown-vite",
+      "description": "Don't touch vite - overridden with rolldown-vite",
       "matchPackageNames": ["vite"],
       "enabled": false
     },