feat: add iOS simulator worktree preview

Adds the worktree service, setup cache seeding, and Metro preview mount for /.sim. Also includes the related startup and mobile sidebar fixes needed by the updated worktree app flow.

package-lock.json

@@ -24193,6 +24193,19 @@
         "css-in-js-utils": "^3.1.0"
       }
     },
+    "node_modules/inspect-webkit": {
+      "version": "0.0.5",
+      "resolved": "https://registry.npmjs.org/inspect-webkit/-/inspect-webkit-0.0.5.tgz",
+      "integrity": "sha512-584wP/2nJO1LX74nqHP2j0tQzlK9ZTi+D0Z9qeLQjtUR/LCMXQHGX8M0vrsqBwTeGakF7q5GMFpg81nxUYlCvw==",
+      "dev": true,
+      "license": "MIT",
+      "bin": {
+        "inspect-webkit": "dist/cli.js"
+      },
+      "peerDependencies": {
+        "typescript": "^5"
+      }
+    },
     "node_modules/internal-slot": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/internal-slot/-/internal-slot-1.1.0.tgz",
@@ -32923,6 +32936,22 @@
         "seroval": "^1.0"
       }
     },
+    "node_modules/serve-sim": {
+      "version": "0.1.40",
+      "resolved": "https://registry.npmjs.org/serve-sim/-/serve-sim-0.1.40.tgz",
+      "integrity": "sha512-32JSUriN/EnNR3zx6fmiOKjuFrbA8VHWR2J3dX8T51Z/xkSmrSLOwaz/3W9lPiCIaF2O3LT4qpAhLkp0f1kVaw==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "inspect-webkit": "^0.0.5"
+      },
+      "bin": {
+        "serve-sim": "dist/serve-sim.js"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/serve-static": {
       "version": "1.16.3",
       "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.16.3.tgz",
@@ -37049,6 +37078,7 @@
         "jsdom": "^20.0.3",
         "material-icon-theme": "^5.32.0",
         "playwright": "^1.56.1",
+        "serve-sim": "^0.1.40",
         "typescript": "~5.9.2",
         "vitest": "^4.1.6",
         "wrangler": "^4.75.0",