add nodes list

- add NodeController
- add getNodes to DeviceRegistryService
- add WebClient deviceRegistryNodes to DeviceRegisterWebClientCalls.kt
- add node list.html
- add node to main menu and cleanup in layout.html
- add node to AdminPaths.kt

src/main/kotlin/ltd/hlaeja/controller/NodeController.kt

@@ -0,0 +1,37 @@
+package ltd.hlaeja.controller
+
+import jakarta.validation.constraints.Max
+import jakarta.validation.constraints.Min
+import ltd.hlaeja.service.DeviceRegistryService
+import ltd.hlaeja.util.Pagination
+import ltd.hlaeja.util.Pagination.Companion.DEFAULT_PAGE
+import ltd.hlaeja.util.Pagination.Companion.DEFAULT_SIZE
+import ltd.hlaeja.util.Pagination.Companion.MAX
+import ltd.hlaeja.util.Pagination.Companion.MIN
+import org.springframework.stereotype.Controller
+import org.springframework.ui.Model
+import org.springframework.web.bind.annotation.GetMapping
+import org.springframework.web.bind.annotation.PathVariable
+import reactor.core.publisher.Mono
+
+@Controller
+class NodeController(
+    private val deviceRegistryService: DeviceRegistryService,
+) {
+    @GetMapping(
+        "/node",
+        "/node/page-{page}",
+        "/node/page-{page}/show-{show}",
+    )
+    fun getNodes(
+        @PathVariable(required = false) @Min(MIN) page: Int = DEFAULT_PAGE,
+        @PathVariable(required = false) @Min(MIN) @Max(MAX) show: Int = DEFAULT_SIZE,
+        model: Model,
+    ) = deviceRegistryService.getNodes(page, show)
+        .collectList()
+        .doOnNext { items ->
+            model.addAttribute("items", items)
+            model.addAttribute("pagination", Pagination(page, show, items.size, DEFAULT_SIZE))
+        }
+        .then(Mono.just("node/list"))
+}