Release v1.2.0

SemVer Minor - seit v1.1.0: DHCP-Pool-Haenger gefixt (SSHTransport-
Timeout, bugs.md #11), Experte-Tab-Port-Konflikt-Pruefung (bugs.md #12,
neue Faehigkeit). Beides live vom Nutzer bestaetigt. Build + alle
111 Unit-Tests gruen.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

RouterOSAssistant/Info.plist

@@ -17,9 +17,9 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>1.1.0</string>
+	<string>1.2.0</string>
 	<key>CFBundleVersion</key>
-	<string>2</string>
+	<string>3</string>
 	<key>LSApplicationCategoryType</key>
 	<string>public.app-category.utilities</string>
 	<key>NSAppTransportSecurity</key>