fix(dashboard): eliminar card duplicado de búsquedas sin resultados

- Eliminar card "ACCIÓN URGENTE: Contenido a Crear" (duplicaba información)
- Mantener card "Búsquedas Sin Resultados" con paginación
- Añadir texto descriptivo al card conservado
- Limpiar variable $zero_results y objeto JS no utilizados

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

.commitlintrc.json

@@ -0,0 +1,40 @@
+{
+  "extends": ["@commitlint/config-conventional"],
+  "rules": {
+    "type-enum": [
+      2,
+      "always",
+      [
+        "feat",
+        "fix",
+        "docs",
+        "style",
+        "refactor",
+        "perf",
+        "test",
+        "build",
+        "ci",
+        "chore",
+        "revert"
+      ]
+    ],
+    "scope-enum": [
+      2,
+      "always",
+      [
+        "plugin",
+        "search",
+        "api",
+        "admin",
+        "assets",
+        "sql",
+        "includes",
+        "config",
+        "deps"
+      ]
+    ],
+    "subject-case": [2, "always", "lower-case"],
+    "subject-max-length": [2, "always", 72],
+    "body-max-line-length": [2, "always", 72]
+  }
+}