Add embedded Swagger UI page with auto-injected JWT auth

- New /swagger route with lazy-loaded SwaggerPage that initializes
  swagger-ui-dist and injects the session JWT via requestInterceptor
- Move API link from primary nav to navRight utility area (pill style)
- Code-split swagger chunk (~1.4 MB) so main bundle stays lean

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ui/package-lock.json

@@ -14,6 +14,7 @@
         "react": "^19.2.4",
         "react-dom": "^19.2.4",
         "react-router": "^7.13.1",
+        "swagger-ui-dist": "^5.32.0",
         "uplot": "^1.6.32",
         "zustand": "^5.0.11"
       },
@@ -941,6 +942,13 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/@scarf/scarf": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/@scarf/scarf/-/scarf-1.4.0.tgz",
+      "integrity": "sha512-xxeapPiUXdZAE3che6f3xogoJPeZgig6omHEy1rIY5WVsB3H2BHNnZH+gHG6x91SCWyQCzWGsuL2Hh3ClO5/qQ==",
+      "hasInstallScript": true,
+      "license": "Apache-2.0"
+    },
     "node_modules/@tanstack/query-core": {
       "version": "5.90.20",
       "resolved": "https://registry.npmjs.org/@tanstack/query-core/-/query-core-5.90.20.tgz",
@@ -3027,6 +3035,15 @@
         "node": ">=8"
       }
     },
+    "node_modules/swagger-ui-dist": {
+      "version": "5.32.0",
+      "resolved": "https://registry.npmjs.org/swagger-ui-dist/-/swagger-ui-dist-5.32.0.tgz",
+      "integrity": "sha512-nKZB0OuDvacB0s/lC2gbge+RigYvGRGpLLMWMFxaTUwfM+CfndVk9Th2IaTinqXiz6Mn26GK2zriCpv6/+5m3Q==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@scarf/scarf": "=1.4.0"
+      }
+    },
     "node_modules/tinyglobby": {
       "version": "0.2.15",
       "resolved": "https://registry.npmjs.org/tinyglobby/-/tinyglobby-0.2.15.tgz",