chore: migrate renovate config from config.js to renovate.json

Eliminates JS migration warning; update RENOVATE_CONFIG_FILE accordingly.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

renovate/configmap-renovate.yaml

@@ -4,44 +4,23 @@ metadata:
   name: renovate-config
   namespace: renovate
 data:
-  config.js: |
-    module.exports = {
-      platform: 'gitea',
-      gitAuthor: 'Renovate Bot <renovate@git.chemavx.xyz>',
-      endpoint: 'https://git.chemavx.xyz/',
-      repositories: [
-        'chemavx/researchowl',
-        'chemavx/polymarket-bot',
-        'chemavx/n8n',
-      ],
-      automerge: false,
-      assignees: ['chemavx'],
-      labels: ['renovate'],
-      prCreation: 'not-pending',
-      timezone: 'Europe/Madrid',
-      schedule: ['after 9am and before 6pm every weekday'],
-      packageRules: [
-        {
-          // Major bumps: crear PR pero no automerge, requiere revisión manual
-          matchUpdateTypes: ['major'],
-          automerge: false,
-          labels: ['renovate', 'major-update'],
-        },
-        {
-          // Minor bumps: PR sin automerge
-          matchUpdateTypes: ['minor'],
-          automerge: false,
-        },
-        {
-          // Patch bumps: automerge automático
-          matchUpdateTypes: ['patch'],
-          automerge: true,
-          automergeType: 'pr',
-        },
-        {
-          // Imágenes del registry privado: nunca tocar (tags son commits SHA)
-          matchPackagePatterns: ['^git\\.chemavx\\.xyz/'],
-          enabled: false,
-        },
-      ],
-    };
+  renovate.json: |
+    {
+      "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+      "platform": "gitea",
+      "endpoint": "https://git.chemavx.xyz/",
+      "gitAuthor": "Renovate Bot <renovate@git.chemavx.xyz>",
+      "repositories": ["chemavx/researchowl", "chemavx/polymarket-bot", "chemavx/n8n"],
+      "automerge": false,
+      "assignees": ["chemavx"],
+      "labels": ["renovate"],
+      "prCreation": "not-pending",
+      "timezone": "Europe/Madrid",
+      "schedule": ["after 9am and before 6pm every weekday"],
+      "packageRules": [
+        {"matchUpdateTypes": ["major"], "automerge": false, "labels": ["renovate", "major-update"]},
+        {"matchUpdateTypes": ["minor"], "automerge": false},
+        {"matchUpdateTypes": ["patch"], "automerge": true, "automergeType": "pr"},
+        {"matchPackageNames": ["/^git\\.chemavx\\.xyz//"], "enabled": false}
+      ]
+    }

renovate/cronjob-renovate.yaml

@@ -25,7 +25,7 @@ spec:
                   name: renovate-token
                   key: RENOVATE_TOKEN
             - name: RENOVATE_CONFIG_FILE
-              value: /opt/renovate/config.js
+              value: /opt/renovate/renovate.json
             - name: LOG_LEVEL
               value: info
             resources: