refactor(geode): extract NIP-11 GET into Nip11HttpRoute

KtorRelay was resolving NIP-11 inline in the routing block while NIP-86
already had a dedicated Nip86HttpRoute with a handle(call) entry point.
Lift NIP-11 to the same shape so both endpoints look symmetric and the
routing block is just dispatch. The `liveJson` callback (rather than a
snapshot string) keeps NIP-86 changerelay* admin mutations visible on
the next GET without re-wiring.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

geode/src/main/kotlin/com/vitorpamplona/geode/KtorRelay.kt

@@ -20,6 +20,7 @@
  */
 package com.vitorpamplona.geode
 
+import com.vitorpamplona.geode.server.Nip11HttpRoute
 import com.vitorpamplona.geode.server.Nip86HttpRoute
 import com.vitorpamplona.geode.server.WebSocketSessionPump
 import com.vitorpamplona.quartz.nip01Core.core.HexKey
@@ -28,9 +29,7 @@ import com.vitorpamplona.quartz.nip01Core.relay.server.RelaySession
 import com.vitorpamplona.quartz.nip11RelayInfo.Nip11RelayInformation
 import com.vitorpamplona.quartz.nip86RelayManagement.server.Nip86Server
 import com.vitorpamplona.quartz.nip98HttpAuth.Nip98AuthVerifier
-import io.ktor.http.ContentType
 import io.ktor.http.HttpHeaders
-import io.ktor.http.HttpStatusCode
 import io.ktor.server.application.install
 import io.ktor.server.application.serverConfig
 import io.ktor.server.cio.CIO
@@ -38,7 +37,6 @@ import io.ktor.server.cio.CIOApplicationEngine
 import io.ktor.server.engine.connector
 import io.ktor.server.engine.embeddedServer
 import io.ktor.server.request.header
-import io.ktor.server.response.respondText
 import io.ktor.server.routing.get
 import io.ktor.server.routing.post
 import io.ktor.server.routing.routing
@@ -142,6 +140,7 @@ class KtorRelay(
                 publicUrl ?: ("http://" + (call.request.header(HttpHeaders.Host) ?: "$host:$resolvedPort") + path)
             },
         )
+    private val nip11Route = Nip11HttpRoute(liveJson = { relay.info.json })
 
     private var engine: CIOApplicationEngine? = null
     private var resolvedPort: Int = -1
@@ -203,20 +202,7 @@ class KtorRelay(
                                 // serves NIP-11 for plain HTTP GETs and only upgrades
                                 // to a WebSocket when the request is a WS upgrade.
                                 get(path) {
-                                    val accept = call.request.header(HttpHeaders.Accept).orEmpty()
+                                    nip11Route.handle(call)
-                                    if (accept.contains("application/nostr+json")) {
-                                        call.response.headers.append("Access-Control-Allow-Origin", "*")
-                                        call.respondText(
-                                            relay.info.json,
-                                            ContentType.parse("application/nostr+json"),
-                                        )
-                                    } else {
-                                        call.respondText(
-                                            "Use a Nostr client (NIP-01 WebSocket) or send Accept: application/nostr+json (NIP-11).",
-                                            ContentType.Text.Plain,
-                                            HttpStatusCode.UpgradeRequired,
-                                        )
-                                    }
                                 }
                                 // NIP-86: POST application/nostr+json+rpc with a NIP-98
                                 // signed Authorization header → JSON-RPC dispatch.

geode/src/main/kotlin/com/vitorpamplona/geode/server/Nip11HttpRoute.kt

@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2025 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.geode.server
+
+import io.ktor.http.ContentType
+import io.ktor.http.HttpHeaders
+import io.ktor.http.HttpStatusCode
+import io.ktor.server.application.ApplicationCall
+import io.ktor.server.request.header
+import io.ktor.server.response.respondText
+
+/**
+ * NIP-11 GET handler. Branches on the `Accept` header so a single path
+ * can serve both flavors of GET we expect:
+ *
+ *  - `Accept: application/nostr+json` → respond with the live relay
+ *    info JSON via [liveJson]. CORS-open so browser-based clients
+ *    (which can't set custom headers cross-origin without preflight)
+ *    can still load it.
+ *  - anything else → respond 426 Upgrade Required with a short hint
+ *    pointing at the two valid ways to talk to this endpoint
+ *    (WebSocket upgrade or NIP-11 Accept).
+ *
+ * [liveJson] is a callback rather than a snapshot string because the
+ * NIP-86 `changerelay*` admin RPCs mutate the in-memory doc while the
+ * relay is running; we must read the latest JSON on every request.
+ */
+internal class Nip11HttpRoute(
+    private val liveJson: () -> String,
+) {
+    suspend fun handle(call: ApplicationCall) {
+        val accept = call.request.header(HttpHeaders.Accept).orEmpty()
+        if (accept.contains(NIP11_CONTENT_TYPE)) {
+            call.response.headers.append("Access-Control-Allow-Origin", "*")
+            call.respondText(liveJson(), ContentType.parse(NIP11_CONTENT_TYPE))
+        } else {
+            call.respondText(
+                "Use a Nostr client (NIP-01 WebSocket) or send Accept: $NIP11_CONTENT_TYPE (NIP-11).",
+                ContentType.Text.Plain,
+                HttpStatusCode.UpgradeRequired,
+            )
+        }
+    }
+
+    companion object {
+        const val NIP11_CONTENT_TYPE = "application/nostr+json"
+    }
+}