feat: 32-bit process support, scanner rescan filtering, suppress flash on navigate

- Add pointerSize() to Provider base; WoW64/ELF detection in ProcessMemory,
  WinDbg, and RemoteProcessMemory plugins
- Wire pointer size through NodeTree, source/XML imports, C++ generator,
  controller, compose, address parser, and RPC protocol header
- Add is32Bit to PluginProcessInfo and ProcessInfo; show (32-bit) in picker
- Scanner rescan now filters results against the current input value
- Go-to-address from scanner resets change tracking to prevent false flashing

src/addressparser.cpp

@@ -405,6 +405,8 @@ private:
 AddressParseResult AddressParser::evaluate(const QString& formula, int ptrSize,
                                            const AddressParserCallbacks* cb)
 {
+    // ptrSize is used by the caller to configure the readPointer callback;
+    // the parser itself doesn't need it directly.
     Q_UNUSED(ptrSize);
 
     // WinDbg displays 64-bit addresses with backtick separators for readability,