drop the casts the dual-world layer needed

With every producer on the generated lexicons, the branded-string assertions at
these 30 sites are no-ops, and oxlint flags them. Also sorts the imports the
type flip disturbed and prunes the suppressions that no longer occur.

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

src/state/queries/feed.ts

@@ -1,7 +1,7 @@
 import {useCallback, useEffect, useMemo, useRef} from 'react'
-import {type AtUriString, AtUri} from '@atproto/syntax'
-import {RichText} from '@bsky.app/sdk/richtext'
+import {AtUri, type AtUriString} from '@atproto/syntax'
 import {moderateFeedGenerator} from '@bsky.app/sdk/moderation'
+import {RichText} from '@bsky.app/sdk/richtext'
 import {t} from '@lingui/core/macro'
 import {
   type InfiniteData,