feat: scaffold yonexus MVP core with storage, auth, query, and scope memory

src/memory/scopeMemory.ts

@@ -0,0 +1,16 @@
+export interface MemoryPort {
+  store(input: { text: string; scope: string; metadata?: Record<string, string> }): Promise<unknown>;
+  recall(input: { query: string; scope: string; limit?: number }): Promise<unknown>;
+}
+
+export class ScopeMemory {
+  constructor(private readonly memory: MemoryPort) {}
+
+  async put(scopeId: string, text: string, metadata?: Record<string, string>): Promise<unknown> {
+    return this.memory.store({ text, scope: scopeId, metadata });
+  }
+
+  async search(scopeId: string, query: string, limit = 5): Promise<unknown> {
+    return this.memory.recall({ query, scope: scopeId, limit });
+  }
+}