refactor(shared): dedupe protocol schema typing and session/media helpers

src/shared/session-types.ts

@@ -0,0 +1,28 @@
+export type GatewayAgentIdentity = {
+  name?: string;
+  theme?: string;
+  emoji?: string;
+  avatar?: string;
+  avatarUrl?: string;
+};
+
+export type GatewayAgentRow = {
+  id: string;
+  name?: string;
+  identity?: GatewayAgentIdentity;
+};
+
+export type SessionsListResultBase<TDefaults, TRow> = {
+  ts: number;
+  path: string;
+  count: number;
+  defaults: TDefaults;
+  sessions: TRow[];
+};
+
+export type SessionsPatchResultBase<TEntry> = {
+  ok: true;
+  path: string;
+  key: string;
+  entry: TEntry;
+};