config(nx): Add nx config and ignore .nx/

.gitignore

@@ -41,3 +41,6 @@ dist-ssr
 # Nix & Direnv
 .direnv
 result
+
+# Nx
+.nx/

nx.json

@@ -0,0 +1,41 @@
+{
+  "$schema": "./node_modules/nx/schemas/nx-schema.json",
+  "npmScope": "nimbus-gui",
+  "affected": {
+    "defaultBase": "main"
+  },
+  "workspaceLayout": {
+    "libsDir": "libs"
+  },
+  "tasksRunnerOptions": {
+    "default": {
+      "runner": "nx/tasks-runners/default",
+      "options": {
+        "cacheableOperations": ["build", "lint", "test"]
+      }
+    }
+  },
+  "namedInputs": {
+    "default": ["{projectRoot}/**/*", "sharedGlobals"],
+    "sharedGlobals": [],
+    "production": [
+      "default",
+      "!{projectRoot}/**/?(*.)+(spec|test).[jt]s?(x)?(.snap)",
+      "!{projectRoot}/tsconfig.spec.json"
+    ]
+  },
+  "targetDefaults": {
+    "test": {
+      "inputs": ["default"],
+      "dependsOn": ["build"]
+    },
+    "build": {
+      "inputs": ["production"],
+      "dependsOn": ["^build"]
+    },
+    "@nx/vite:test": {
+      "cache": true,
+      "inputs": ["default", "^production"]
+    }
+  }
+}