fix(cli): update mDNS runtime defaults from opencode.local to kilo.local

Address review feedback from @lambertjosh: the mdns.ts fallback was
updated but the actual CLI defaults in network.ts and config.ts still
advertised opencode.local. Update both so kilo serve --mdns uses the
correct hostname.

packages/opencode/src/cli/network.ts

@@ -19,8 +19,8 @@ const options = {
   },
   "mdns-domain": {
     type: "string" as const,
-    describe: "custom domain name for mDNS service (default: opencode.local)",
-    default: "opencode.local",
+    describe: "custom domain name for mDNS service (default: kilo.local)", // kilocode_change
+    default: "kilo.local", // kilocode_change
   },
   cors: {
     type: "string" as const,

packages/opencode/src/config/config.ts

@@ -1039,7 +1039,7 @@ export namespace Config {
       port: z.number().int().positive().optional().describe("Port to listen on"),
       hostname: z.string().optional().describe("Hostname to listen on"),
       mdns: z.boolean().optional().describe("Enable mDNS service discovery"),
-      mdnsDomain: z.string().optional().describe("Custom domain name for mDNS service (default: opencode.local)"),
+      mdnsDomain: z.string().optional().describe("Custom domain name for mDNS service (default: kilo.local)"), // kilocode_change
       cors: z.array(z.string()).optional().describe("Additional domains to allow for CORS"),
     })
     .strict()