refactor(devframe): isolate local RPC discovery metadata

Author: SaKaNa-Y

packages/devframe/src/node/instance-shell.ts

@@ -861,6 +861,17 @@ export function createInstanceShell<TContext extends DevframeNodeContext>(
     }
   }
 
+  function addLocalMethodHints(meta: ConnectionMeta): void {
+    if (tier === 'external' || meta.backend === 'none')
+      return
+    // Routes retain this descriptor. Read the registry on discovery so it
+    // includes methods registered after startup.
+    Object.defineProperty(meta, 'jsonSerializableMethods', {
+      enumerable: true,
+      get: () => getJsonSerializableMethods(ctx.rpc),
+    })
+  }
+
   async function init(): Promise<void> {
     const result = await options.init(api)
     ctx = result.context
@@ -913,14 +924,7 @@ export function createInstanceShell<TContext extends DevframeNodeContext>(
         : {}),
     }
 
-    // Routes retain this descriptor. Read the registry on discovery so it
-    // includes methods registered after startup. External relays own theirs.
-    if (tier !== 'external' && (wsAvailable || sseEnabled)) {
-      Object.defineProperty(meta, 'jsonSerializableMethods', {
-        enumerable: true,
-        get: () => getJsonSerializableMethods(ctx.rpc),
-      })
-    }
+    addLocalMethodHints(meta)
 
     // Whatever `setup(ctx)` wrote to `ctx.staticConfig` during
     // `options.init(api)` (e.g. a hub aggregating each installed devframe's