migrate runtime call sites to lex clients and sdk actions

Phase 3 tasks 3-7 (parallel wave): composer/post pipeline on
pdsClient/appviewClient with structural+instance blob guards and a golden
CID fixture test; chat Convo/EventBus/queries on the dedicated chat client;
preferences sugar to SDK actions on the PDS client; remaining state/queries
producers (usePostThread unspecced flip, video scoped-token clients,
notifications, starter packs, lists) to client.call; UI runtime sweep
(AtUri from @atproto/syntax, moderation fns from @bsky.app/sdk/moderation,
SDK RichText, ozone reason tokens, guard rewrites via #/types/bsky).

Intermediate checkpoint (hooks skipped): ~114 typecheck errors remain in
cross-boundary consumer files, resolved by the type-only codemod next.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/state/queries/trending/useGetSuggestedUsersForDiscoverQuery.ts

@@ -1,7 +1,3 @@
-import {
-  type AppBskyActorDefs,
-  type AppBskyUnspeccedGetSuggestedUsersForDiscover,
-} from '@atproto/api'
 import {type QueryClient, useQuery} from '@tanstack/react-query'
 
 import {
@@ -13,6 +9,7 @@ import {getContentLanguages} from '#/state/preferences/languages'
 import {STALE} from '#/state/queries'
 import {usePreferencesQuery} from '#/state/queries/preferences'
 import {useAgent} from '#/state/session'
+import {type app} from '#/lexicons'
 
 export type QueryProps = {
   limit?: number
@@ -58,13 +55,12 @@ export function useGetSuggestedUsersForDiscoverQuery(props: QueryProps = {}) {
 export function* findAllProfilesInQueryData(
   queryClient: QueryClient,
   did: string,
-): Generator<AppBskyActorDefs.ProfileView, void> {
-  const responses =
-    queryClient.getQueriesData<AppBskyUnspeccedGetSuggestedUsersForDiscover.OutputSchema>(
-      {
-        queryKey: [getSuggestedUsersForDiscoverQueryKeyRoot],
-      },
-    )
+): Generator<app.bsky.actor.defs.ProfileView, void> {
+  const responses = queryClient.getQueriesData<{
+    actors: app.bsky.actor.defs.ProfileView[]
+  }>({
+    queryKey: [getSuggestedUsersForDiscoverQueryKeyRoot],
+  })
   for (const [_key, response] of responses) {
     if (!response) {
       continue