fix: update diff-filter default to ACMR to include renamed models

Author: joostboon

action.yml

@@ -22,7 +22,7 @@ inputs:
     description: >
       git diff --diff-filter value.
       ACM = Added, Copied, Modified (excludes deleted models).
-    default: "ACM"
+    default: "ACMR"
   claude-model:
     description: >
       Claude model ID to use.

templates/mr-review.yml

@@ -27,7 +27,7 @@ elementary-mr-review:
   script:
     - |
       MODELS_PATH="${ELEMENTARY_CI_MODELS_PATH:-models/}"
-      DIFF_FILTER="${ELEMENTARY_CI_DIFF_FILTER:-ACM}"
+      DIFF_FILTER="${ELEMENTARY_CI_DIFF_FILTER:-ACMR}"
 
       git fetch origin "${CI_MERGE_REQUEST_TARGET_BRANCH_NAME}"