Bug 28: dynamische Routen (distance=0) nicht mehr über die Übersicht editierbar

Eine dynamische/verbundene Route (automatisch angelegt durch eine
IP-Adresse auf einem Interface) scheiterte beim Bearbeiten mit "no such
item (4)" — bestätigt per /ip route print detail: D-Flag, distance=0.
RouterOS' "dynamic"-Flag steht nicht zuverlässig in print terse
(dasselbe Problem schon bei DHCP-Leases dokumentiert), aber distance=0
ist ein verlässliches Signal, da keine echte statische Route das je
haben kann. Solche Routen bekommen jetzt kein editTarget mehr — ihre
.id ist ohnehin nicht stabil, RouterOS kann sie jederzeit neu anlegen.

59 Unit-Tests grün (neuer Test OverviewGraphTests.
testDynamicRouteHasNoEditTarget).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YDmUd93KxsYGr2kLTotWnG

RouterOSAssistant/Features/Overview/OverviewViewModel.swift

@@ -213,11 +213,20 @@ final class OverviewViewModel: ObservableObject {
             guard let dst = item.fields["dst-address"] else { continue }
             let gateway = item.fields["gateway"] ?? "?"
             let id = "route:\(index)"
+            // Dynamic/connected routes (auto-created by an IP address on an interface) always
+            // report distance=0 — no static route can ever have that (RouterOS enforces 1-255 on
+            // `set`). RouterOS' own "dynamic" flag isn't reliably present in `print terse` output
+            // (confirmed live for DHCP leases too, see `LanDevice.swift`), so distance=0 is the
+            // one dependable signal available here. Editing such a route failed live two ways:
+            // resending its own distance=0 was rejected outright, and its `.id` isn't stable
+            // (RouterOS can recreate/renumber a dynamic route at any time), so even a
+            // comment-only edit could hit "no such item" if the id had since changed underneath.
+            let isDynamic = item.fields["distance"] == "0"
             nodes.append(OverviewNode(
                 id: id, category: .route, kind: "route",
                 title: dst, subtitle: "über \(gateway)",
                 detail: sortedDetail(item.fields),
-                editTarget: .init(menuPath: "/ip route", restPath: "ip/route", itemID: item.id)
+                editTarget: isDynamic ? nil : .init(menuPath: "/ip route", restPath: "ip/route", itemID: item.id)
             ))
             if knownInterfaceNames.contains(gateway) {
                 edges.append(OverviewEdge(from: nodeID(.interface, gateway), to: id, label: nil, kind: .route))