fix: sync firmware version.h (16->17) and SylDaVersions.kt (18->17) with version.txt

Root cause: version.h and SylDaVersions.kt were stale, causing
app to expect BUILD_NR:18 while firmware reports BUILD_NR:16.
This triggered infinite re-flash loop on every 'Module bijwerken'.

Rebuilt firmware and APK so all versions agree on server=17/client=3.
Replace v1.1 release with corrected builds.

android/app/src/main/java/nl/eddydevink/sylda/SylDaVersions.kt

@@ -0,0 +1,7 @@
+// Auto-generated from version.txt — DO NOT EDIT
+package nl.eddydevink.sylda
+
+object SylDaVersions {
+    const val SERVER = "17"
+    const val CLIENT = "3"
+}