feat(fls): write the topology of a .fls, loaded by Java as the original

topologyWriter.ts writes konfiguration.xml from Java's view of a project:
the version line, the node items (label position, device with name,
host label flags, interfaces or ports), the cable items and the
documentation items. What a device's constructor makes is changed through
getters, as XMLEncoder does, and more is added; fewer than it makes set the
list anew. Cable ends name the port objects the getters return (the writer
now names a getter's result, <void id="Port0" property="port"/>), and each
cable carries the nodes the editor draws it between.

Checked by Java against Java: every corpus file, read and written again,
loads in Java FILIUS (the oracle's loading method, --sha256 ties its result
to the written bytes) to the same devices, names, positions, interfaces,
cables and documentation as the original; so does a synthetic topology with
what the corpus never sets. The oracle and the reader now also report a
cable's drawing ends (JCablePanel ziel1/ziel2): in the corpus the nodes it
joins, for all 183 cables. Mutation probes rewrite the files and let Java
load each mutant.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tools/java-oracle/run.sh

@@ -88,3 +88,13 @@ beans="$root/packages/fls/test/beans"
 rm -f "$beans/beans.java.json"
 HOME="$here/.build/home" xvfb-run -a java -cp "$classpath:$here/.build" BeansDump "$beans" "$beans/beans.java.json" 2>&1 | grep -v 'logback\|^$' || true
 test -s "$beans/beans.java.json"
+
+# What Java loads from the files packages/fls writes (topologyWriter.test.ts
+# writes them with UPDATE_WRITTEN=1; the files are not checked in, their
+# SHA-256 is).
+written="$root/packages/fls/test/written"
+if [ -d "$written" ]; then
+    rm -f "$written.java.json"
+    HOME="$here/.build/home" xvfb-run -a java -cp "$classpath:$here/.build" FlsOracle "$written" "$written.java.json" --sha256 2>&1 | grep -v 'logback\|^$' || true
+    test -s "$written.java.json"
+fi