build: update minimal, headless, and base assembly files for plugin folder structure

Apply the same lib/plugins/ structure from full.xml to all assembly configurations:
- minimal.xml: Move postgresw to lib/plugins/ with useTransitiveDependencies=false
- headless.xml: Move postgresw to lib/plugins/ with useTransitiveDependencies=false
- base.xml: Update comment to match new convention (base excludes all plugins)

This ensures consistent plugin deployment across all distribution types.

Co-authored-by: Roberto Franchini <robfrank@users.noreply.github.com>

Author: github-actions[bot]

package/src/main/assembly/base.xml

@@ -95,9 +95,10 @@
         </file>
     </files>
     <!--
-     | all artifacts in a /lib dir, excluding optional modules
+     | all artifacts in a /lib dir, except plugins which go to /lib/plugins
     -->
     <dependencySets>
+        <!-- Main libraries -->
         <dependencySet>
             <outputDirectory>lib</outputDirectory>
             <includes>
@@ -106,15 +107,16 @@
             <excludes>
                 <exclude>com.arcadedb:arcadedb-console</exclude>
                 <exclude>com.arcadedb:arcadedb-gremlin</exclude>
-                <exclude>com.arcadedb:arcadedb-redisw</exclude>
+                <exclude>com.arcadedb:arcadedb-postgresw</exclude>
                 <exclude>com.arcadedb:arcadedb-mongodbw</exclude>
+                <exclude>com.arcadedb:arcadedb-redisw</exclude>
+                <exclude>com.arcadedb:arcadedb-grpcw</exclude>
                 <exclude>com.arcadedb:arcadedb-graphql</exclude>
                 <exclude>com.arcadedb:arcadedb-studio</exclude>
-                <exclude>com.arcadedb:arcadedb-postgresw</exclude>
-                <exclude>com.arcadedb:arcadedb-grpcw</exclude>
                 <exclude>com.arcadedb:arcadedb-metrics</exclude>
             </excludes>
         </dependencySet>
+        <!-- Plugin modules in separate directory (none for base) -->
     </dependencySets>
 
 </assembly>

package/src/main/assembly/headless.xml

@@ -93,22 +93,33 @@
         </file>
     </files>
     <!--
-     | all artifacts in a /lib dir
+     | all artifacts in a /lib dir, except plugins which go to /lib/plugins
     -->
     <dependencySets>
+        <!-- Main libraries -->
         <dependencySet>
             <outputDirectory>lib</outputDirectory>
             <includes>
                 <include>*:jar:*</include>
             </includes>
             <excludes>
                 <exclude>com.arcadedb:arcadedb-gremlin</exclude>
-                <exclude>com.arcadedb:arcadedb-redisw</exclude>
+                <exclude>com.arcadedb:arcadedb-postgresw</exclude>
                 <exclude>com.arcadedb:arcadedb-mongodbw</exclude>
+                <exclude>com.arcadedb:arcadedb-redisw</exclude>
+                <exclude>com.arcadedb:arcadedb-grpcw</exclude>
                 <exclude>com.arcadedb:arcadedb-graphql</exclude>
                 <exclude>com.arcadedb:arcadedb-studio</exclude>
             </excludes>
         </dependencySet>
+        <!-- Plugin modules in separate directory -->
+        <dependencySet>
+            <outputDirectory>lib/plugins</outputDirectory>
+            <includes>
+                <include>com.arcadedb:arcadedb-postgresw</include>
+            </includes>
+            <useTransitiveDependencies>false</useTransitiveDependencies>
+        </dependencySet>
     </dependencySets>
 
 </assembly>

package/src/main/assembly/minimal.xml

@@ -93,21 +93,32 @@
         </file>
     </files>
     <!--
-     | all artifacts in a /lib dir
+     | all artifacts in a /lib dir, except plugins which go to /lib/plugins
     -->
     <dependencySets>
+        <!-- Main libraries -->
         <dependencySet>
             <outputDirectory>lib</outputDirectory>
             <includes>
                 <include>*:jar:*</include>
             </includes>
             <excludes>
                 <exclude>com.arcadedb:arcadedb-gremlin</exclude>
-                <exclude>com.arcadedb:arcadedb-redisw</exclude>
+                <exclude>com.arcadedb:arcadedb-postgresw</exclude>
                 <exclude>com.arcadedb:arcadedb-mongodbw</exclude>
+                <exclude>com.arcadedb:arcadedb-redisw</exclude>
+                <exclude>com.arcadedb:arcadedb-grpcw</exclude>
                 <exclude>com.arcadedb:arcadedb-graphql</exclude>
             </excludes>
         </dependencySet>
+        <!-- Plugin modules in separate directory -->
+        <dependencySet>
+            <outputDirectory>lib/plugins</outputDirectory>
+            <includes>
+                <include>com.arcadedb:arcadedb-postgresw</include>
+            </includes>
+            <useTransitiveDependencies>false</useTransitiveDependencies>
+        </dependencySet>
     </dependencySets>
 
 </assembly>