finish phase 3: type-only codemod and zero non-bridge @atproto/api imports

Task 8: codemod repointed 150 namespace-type files to #/lexicons
(AppBskyFeedDefs.PostView -> app.bsky.feed.defs.PostView, .Record -> .Main)
plus ~105 hand-fixed consumers (composer/video state, DebugMod, Profile,
onboarding, dialogs). DM_SERVICE_HEADERS deleted; last chat call sites on
the chat client. RichText.tsx flipped to SDK-only. Remaining @atproto/api
importers: the three session bridge files, the deliberate dual-world
matcher in lib/xrpc-error.ts, and test fixtures. toLex boundary casts are
TODO(phase4)-tagged for bridge removal.

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

src/screens/Settings/components/ChangeHandleDialog.tsx

@@ -10,7 +10,6 @@ import Animated, {
   SlideOutLeft,
   SlideOutRight,
 } from 'react-native-reanimated'
-import {type ComAtprotoServerDescribeServer} from '@atproto/api'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {Trans} from '@lingui/react/macro'
@@ -46,6 +45,7 @@ import {InlineLinkText} from '#/components/Link'
 import {Loader} from '#/components/Loader'
 import {Text} from '#/components/Typography'
 import {useSimpleVerificationState} from '#/components/verification'
+import {type com} from '#/lexicons'
 import {CopyButton} from './CopyButton'
 
 export function ChangeHandleDialog({
@@ -147,7 +147,7 @@ function ProvidedHandlePage({
   serviceInfo,
   goToOwnHandle,
 }: {
-  serviceInfo: ComAtprotoServerDescribeServer.OutputSchema
+  serviceInfo: com.atproto.server.describeServer.$OutputBody
   goToOwnHandle: () => void
 }) {
   const {_} = useLingui()