feat: add container network filtering, enhance IP address display, and improve workload insights UI

Add is_docker_or_container_network helper to detect Docker bridge, Kubernetes CNI, and loopback networks, implement cleanup_discovered_container_networks to remove container bridge IPs from discovered networks during IPAM discovery, add ip_address_payload helper to enrich IP addresses with subnet CIDR and workload details, update ProxmoxProvider to ignore guest interfaces matching common container pref

frontend/src/pages/Ipam.tsx

@@ -63,8 +63,8 @@ export function Ipam() {
 
   async function discoverIpam() {
     try {
-      const result = await api<{ imported: number; errors: Array<Record<string, unknown>> }>("/ipam/discover", { method: "POST" });
-      setMessage(`Discovery imported ${result.imported} IP addresses${result.errors.length ? " with errors" : ""}.`);
+      const result = await api<{ imported: number; removed: number; errors: Array<Record<string, unknown>> }>("/ipam/discover", { method: "POST" });
+      setMessage(`Discovery imported ${result.imported} IP addresses and removed ${result.removed} container bridge entries${result.errors.length ? " with errors" : ""}.`);
       await queryClient.invalidateQueries({ queryKey: ["subnets"] });
       await queryClient.invalidateQueries({ queryKey: ["addresses"] });
     } catch (error) {
@@ -122,7 +122,17 @@ export function Ipam() {
         </Modal>
         <section className="space-y-4">
           <DataTable rows={(subnets.data ?? []) as unknown as Record<string, unknown>[]} columns={[{ key: "cidr", label: "Subnet" }, { key: "gateway", label: "Gateway" }, { key: "dhcp_enabled", label: "DHCP" }]} />
-          <DataTable rows={(addresses.data ?? []) as unknown as Record<string, unknown>[]} columns={[{ key: "address", label: "Address" }, { key: "status", label: "Status" }, { key: "note", label: "Note" }]} />
+          <DataTable
+            rows={(addresses.data ?? []) as unknown as Record<string, unknown>[]}
+            columns={[
+              { key: "address", label: "Address" },
+              { key: "subnet_cidr", label: "Subnet" },
+              { key: "status", label: "Status" },
+              { key: "workload_name", label: "VM/LXC" },
+              { key: "workload_external_id", label: "VMID" },
+              { key: "note", label: "Note" },
+            ]}
+          />
         </section>
       </div>
     </>