chore: group Dependabot minor and patch updates

Author: rennerdo30

.github/dependabot.yml

@@ -1,34 +1,55 @@
+# Standardized Dependabot configuration.
+#
+# Minor and patch updates for each ecosystem are grouped into a single weekly
+# pull request. This keeps the review queue small and — importantly — makes it
+# impossible to split version-locked pairs (react/react-dom, @mui/material and
+# @mui/icons-material, next and eslint-config-next) across separate PRs, which
+# has broken main before.
+#
+# Major updates are intentionally NOT grouped: they arrive as individual pull
+# requests so each one gets evaluated on its own.
 version: 2
+
 updates:
-  - package-ecosystem: gomod
+  - package-ecosystem: "gomod"
     directory: "/"
     schedule:
-      interval: weekly
-      day: monday
-      time: "06:00"
-    open-pull-requests-limit: 10
-    labels:
-      - dependencies
-      - backend
+      interval: "weekly"
+      day: "monday"
+    open-pull-requests-limit: 5
+    commit-message:
+      prefix: "deps(go):"
+    groups:
+      go-minor-patch:
+        applies-to: version-updates
+        patterns: ["*"]
+        update-types: ["minor", "patch"]
 
-  - package-ecosystem: npm
+  - package-ecosystem: "npm"
     directory: "/ui"
     schedule:
-      interval: weekly
-      day: monday
-      time: "06:30"
-    open-pull-requests-limit: 10
-    labels:
-      - dependencies
-      - frontend
+      interval: "weekly"
+      day: "monday"
+    open-pull-requests-limit: 5
+    commit-message:
+      prefix: "deps(npm):"
+      prefix-development: "deps(npm-dev):"
+    groups:
+      npm-minor-patch:
+        applies-to: version-updates
+        patterns: ["*"]
+        update-types: ["minor", "patch"]
 
-  - package-ecosystem: github-actions
+  - package-ecosystem: "github-actions"
     directory: "/"
     schedule:
-      interval: weekly
-      day: monday
-      time: "07:00"
-    open-pull-requests-limit: 10
-    labels:
-      - dependencies
-      - ci
+      interval: "weekly"
+      day: "monday"
+    open-pull-requests-limit: 3
+    commit-message:
+      prefix: "deps(actions):"
+    groups:
+      actions-minor-patch:
+        applies-to: version-updates
+        patterns: ["*"]
+        update-types: ["minor", "patch"]