[fix] CiFriendliesOnly

Author: duncdrum

AGENTS.md

@@ -41,6 +41,41 @@ mvn test -pl exist-core -Ddependency-check.skip=true -Ddocker=false
 mvn test -pl exist-core -Dtest="org.exist.xquery.XPathQueryTest" -Ddependency-check.skip=true -Ddocker=false
 ```
 
+### Distribution artifacts (zip, tar.bz2, DMG)
+
+Produces release archives and, on macOS, an unsigned DMG suitable for local testing.
+Output lands in `exist-distribution/target/`.
+
+```bash
+JAVA_HOME=$(/usr/libexec/java_home -v 21) \
+  mvn -T1.5C clean package \
+  -pl exist-distribution -am \
+  -DskipTests \
+  -Ddependency-check.skip=true \
+  -Ddocker=false \
+  -Drevision=7.0.0-SNAPSHOT
+```
+
+The DMG is unsigned. For the fully signed and notarized DMG used in releases, see `exist-versioning-release.md`.
+
+### IzPack installer JAR
+
+Produces the cross-platform installer JAR in `exist-installer/target/`.
+Maven will warn "could not be activated because it does not exist" for the `installer` profile — this is a Maven 3 multi-module quirk; the build is correct.
+
+```bash
+JAVA_HOME=$(/usr/libexec/java_home -v 21) \
+  mvn -T1.5C clean package \
+  -Pinstaller \
+  -pl exist-installer -am \
+  -DskipTests \
+  -Ddependency-check.skip=true \
+  -Ddocker=false \
+  -Drevision=7.0.0-SNAPSHOT
+```
+
+Run the installer: `java -jar exist-installer/target/exist-installer-7.0.0-SNAPSHOT.jar`
+
 ### Docker image
 
 ```bash

exist-distribution/pom.xml

@@ -1064,11 +1064,8 @@
                 <os>
                     <family>mac</family>
                 </os>
-                <!-- Opt-in: only when mac-signing=true so local dev builds and CI test runs don't attempt DMG creation -->
-                <property>
-                    <name>mac-signing</name>
-                    <value>true</value>
-                </property>
+                <!-- Active on any macOS build. Negate with !mac-dmg-on-mac for quick builds.
+                     Signing and notarization are gated separately by codesign-mac-dmg (mac-signing=true). -->
             </activation>
             <build>
                 <plugins>

exist-parent/pom.xml

@@ -1227,7 +1227,7 @@
                 <artifactId>flatten-maven-plugin</artifactId>
                 <configuration>
                     <updatePomFile>true</updatePomFile>
-                    <flattenMode>resolveCiFriendlyVersions</flattenMode>
+                    <flattenMode>resolveCiFriendliesOnly</flattenMode>
                 </configuration>
                 <executions>
                     <execution>