chore: update dependabot config for full coverage, weekly schedule, 7-day cooldown, and grouped updates

Author: dguido

.github/dependabot.yml

@@ -0,0 +1,78 @@
+version: 2
+updates:
+  - package-ecosystem: "pip"
+    directory: "/backend"
+    schedule:
+      interval: "weekly"
+    cooldown:
+      default-days: 7
+    groups:
+      pip-dependencies:
+        patterns:
+          - "*"
+
+  - package-ecosystem: "pip"
+    directory: "/content-server"
+    schedule:
+      interval: "weekly"
+    cooldown:
+      default-days: 7
+    groups:
+      pip-dependencies:
+        patterns:
+          - "*"
+
+  - package-ecosystem: "npm"
+    directory: "/frontend"
+    schedule:
+      interval: "weekly"
+    cooldown:
+      default-days: 7
+    groups:
+      npm-dependencies:
+        patterns:
+          - "*"
+
+  - package-ecosystem: "docker"
+    directory: "/backend"
+    schedule:
+      interval: "weekly"
+    cooldown:
+      default-days: 7
+    groups:
+      docker-dependencies:
+        patterns:
+          - "*"
+
+  - package-ecosystem: "docker"
+    directory: "/content-server"
+    schedule:
+      interval: "weekly"
+    cooldown:
+      default-days: 7
+    groups:
+      docker-dependencies:
+        patterns:
+          - "*"
+
+  - package-ecosystem: "docker"
+    directory: "/frontend"
+    schedule:
+      interval: "weekly"
+    cooldown:
+      default-days: 7
+    groups:
+      docker-dependencies:
+        patterns:
+          - "*"
+
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    cooldown:
+      default-days: 7
+    groups:
+      github-actions-dependencies:
+        patterns:
+          - "*"