feat(topology): overhaul network topology with dagre layout, enriched nodes, and click-to-logs (#447)

Replace N+1 Docker API calls (inspectNetwork per network) with a
container-centric approach that fetches all networks and containers
in 2 parallel calls, then maps relationships in memory.

Add dagre auto-layout algorithm for hierarchical DAG visualization,
replacing the static two-row layout that caused edge spaghetti at scale.

Add "Show system networks" toggle, enrich container nodes with running
state indicators, stack badges, and base image names. Clicking a
running container opens its log viewer directly from the topology graph.

frontend/package-lock.json

@@ -9,6 +9,7 @@
       "version": "0.0.0",
       "license": "SEE LICENSE IN LICENSE",
       "dependencies": {
+        "@dagrejs/dagre": "^3.0.0",
         "@monaco-editor/react": "^4.7.0",
         "@radix-ui/react-alert-dialog": "^1.1.15",
         "@radix-ui/react-checkbox": "^1.3.3",
@@ -307,6 +308,21 @@
         "node": ">=6.9.0"
       }
     },
+    "node_modules/@dagrejs/dagre": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@dagrejs/dagre/-/dagre-3.0.0.tgz",
+      "integrity": "sha512-ZzhnTy1rfuoew9Ez3EIw4L2znPGnYYhfn8vc9c4oB8iw6QAsszbiU0vRhlxWPFnmmNSFAkrYeF1PhM5m4lAN0Q==",
+      "license": "MIT",
+      "dependencies": {
+        "@dagrejs/graphlib": "4.0.1"
+      }
+    },
+    "node_modules/@dagrejs/graphlib": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/@dagrejs/graphlib/-/graphlib-4.0.1.tgz",
+      "integrity": "sha512-IvcV6FduIIAmLwnH+yun+QtV36SC7mERqa86aClNqmMN09WhmPPYU8ckHrZBozErf+UvHPWOTJYaGYiIcs0DgA==",
+      "license": "MIT"
+    },
     "node_modules/@eslint-community/eslint-utils": {
       "version": "4.9.1",
       "resolved": "https://registry.npmjs.org/@eslint-community/eslint-utils/-/eslint-utils-4.9.1.tgz",