Exclude .serena directory from export and license checks

Added .serena/ to .gitattributes for export-ignore and updated .licenserc.yaml to exclude .serena/** from license header checks.

Author: imbajin

.gitattributes

@@ -10,5 +10,6 @@ apache-release.sh export-ignore
 # ignored directory
 .github/ export-ignore
 hugegraph-dist/scripts/ export-ignore
+.serena/ export-ignore
 # only exclude the root
 /assembly/ export-ignore

.licenserc.yaml

@@ -56,6 +56,7 @@ header: # `header` section is configurations for source codes license header.
     - 'LICENSE'
     - 'NOTICE'
     - 'DISCLAIMER'
+    - '.serena/**'
     - '**/*.md'
     - '**/*.versionsBackup'
     - '**/*.log'

pom.xml

@@ -493,6 +493,8 @@
                         <exclude>**/*.svg</exclude>
                         <!-- GitHub -->
                         <exclude>.github/**/*</exclude>
+                        <!-- Serena AI assistant -->
+                        <exclude>.serena/**/*</exclude>
                         <!-- Intellij -->
                         <exclude>**/*.iml</exclude>
                         <exclude>**/*.iws</exclude>