Add iOS node push-token registration foundation

src/config/schema.test.ts

@@ -144,6 +144,7 @@ describe('configSchema — server', () => {
     expect(result.server.nodes.allowed_roles).toEqual(['companion']);
     expect(result.server.nodes.feature_gates).toEqual({});
     expect(result.server.nodes.location.enabled).toBe(false);
+    expect(result.server.nodes.push.enabled).toBe(false);
   });
 
   it('accepts custom node policy settings', () => {
@@ -160,6 +161,9 @@ describe('configSchema — server', () => {
           location: {
             enabled: true,
           },
+          push: {
+            enabled: true,
+          },
         },
       },
     });
@@ -168,6 +172,7 @@ describe('configSchema — server', () => {
     expect(result.server.nodes.feature_gates['ui.canvas']).toBe(true);
     expect(result.server.nodes.feature_gates['fs.sync']).toBe(false);
     expect(result.server.nodes.location.enabled).toBe(true);
+    expect(result.server.nodes.push.enabled).toBe(true);
   });
 
   it('accepts custom discovery settings', () => {

src/config/schema.ts

@@ -91,6 +91,11 @@ const serverNodePolicySchema = z.object({
     /** Enable node.location.set/get and system.location visibility. */
     enabled: z.boolean().default(false),
   }).default({}),
+  /** Node push registration controls (e.g. APNs for iOS companion). */
+  push: z.object({
+    /** Enable node.push_token.set and push summary visibility in system.nodes. */
+    enabled: z.boolean().default(false),
+  }).default({}),
 }).default({});
 
 const serverSchema = z.object({