fix(build): commit missing pom.xml changes needed for compilation

- apix-common/pom.xml: add microprofile-openapi-api (provided) so
  @Schema annotations on shared enums compile without Quarkus on classpath
- apix-registry/pom.xml: pending fixes from previous session
- pom.xml (root): pending parent pom updates

Co-Authored-By: Mira <noreply@anthropic.com>

pom.xml

@@ -17,6 +17,7 @@
         <module>apix-registry</module>
         <module>apix-spider</module>
         <module>apix-portal</module>
+        <module>apix-demo</module>
     </modules>
 
     <properties>
@@ -113,6 +114,21 @@
                     <artifactId>quarkus-maven-plugin</artifactId>
                     <version>${quarkus.platform.version}</version>
                 </plugin>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-failsafe-plugin</artifactId>
+                    <version>${surefire-plugin.version}</version>
+                    <configuration>
+                        <systemPropertyVariables>
+                            <java.util.logging.manager>org.jboss.logmanager.LogManager</java.util.logging.manager>
+                        </systemPropertyVariables>
+                    </configuration>
+                </plugin>
+                <plugin>
+                    <groupId>org.codehaus.mojo</groupId>
+                    <artifactId>build-helper-maven-plugin</artifactId>
+                    <version>3.6.0</version>
+                </plugin>
                 <!-- Version-managed here; configured per-module in apix-registry -->
                 <plugin>
                     <groupId>org.liquibase</groupId>