Implement XQuery 4.0 parser, functions, and runtime support

.gitignore

@@ -25,3 +25,4 @@ work/
 
 # Claude planning files
 plans/
+.xqts-runner/

exist-core/pom.xml

@@ -390,6 +390,11 @@
             <artifactId>Saxon-HE</artifactId>
         </dependency>
 
+        <dependency>
+            <groupId>de.bottlecaps</groupId>
+            <artifactId>markup-blitz</artifactId>
+        </dependency>
+
         <dependency>
             <groupId>org.exist-db</groupId>
             <artifactId>exist-saxon-regex</artifactId>
@@ -1191,6 +1196,7 @@ The BaseX Team. The original license statement is also included below.]]></pream
                     </dependency>
                 </dependencies>
                 <configuration>
+                    <forkedProcessTimeoutInSeconds>600</forkedProcessTimeoutInSeconds>
                     <skip>${skipUnitTests}</skip>
                     <argLine>@{jacocoArgLine} -Dfile.encoding=${project.build.sourceEncoding} -Dexist.recovery.progressbar.hide=true</argLine>
                     <systemPropertyVariables>