Deconstruct VncThumbnailViewer 1.4.2 and add self-contained build

The shipped VncThumbnailViewerWin1.4.2.exe is a native launcher stub with a
Java JAR appended. This commit adds:

- src/: full Java source recovered from the bundled .class files (CFR),
  plus src/summary.txt with decompiler caveats
- ANALYSIS.md: architecture, data flow, hosts-file format, and security notes
- build-app-image.ps1: reproducible jpackage build that repackages the
  original classes and bundles a slim jlinked runtime (java.base + java.desktop)
  into a self-contained native app-image (no Java required on the target)

The 74 MB app-image is shipped as a release asset rather than tracked.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/net/n3/nanoxml/IXMLParser.java

@@ -0,0 +1,39 @@
+/*
+ * Decompiled with CFR 0.152.
+ * 
+ * Could not load the following classes:
+ *  net.n3.nanoxml.IXMLBuilder
+ *  net.n3.nanoxml.IXMLEntityResolver
+ *  net.n3.nanoxml.IXMLParser
+ *  net.n3.nanoxml.IXMLReader
+ *  net.n3.nanoxml.IXMLValidator
+ *  net.n3.nanoxml.XMLException
+ */
+package net.n3.nanoxml;
+
+import net.n3.nanoxml.IXMLBuilder;
+import net.n3.nanoxml.IXMLEntityResolver;
+import net.n3.nanoxml.IXMLReader;
+import net.n3.nanoxml.IXMLValidator;
+import net.n3.nanoxml.XMLException;
+
+public interface IXMLParser {
+    public void setReader(IXMLReader var1);
+
+    public IXMLReader getReader();
+
+    public void setBuilder(IXMLBuilder var1);
+
+    public IXMLBuilder getBuilder();
+
+    public void setValidator(IXMLValidator var1);
+
+    public IXMLValidator getValidator();
+
+    public void setResolver(IXMLEntityResolver var1);
+
+    public IXMLEntityResolver getResolver();
+
+    public Object parse() throws XMLException;
+}
+