Add attribution for starter pack follows (#9834)

src/screens/Onboarding/StepFinished/index.tsx

@@ -96,10 +96,13 @@ export function StepFinished() {
       const {selectedInterests} = interestsStepResults
 
       await Promise.all([
-        bulkWriteFollows(agent, [
-          BSKY_APP_ACCOUNT_DID,
-          ...(listItems?.map(i => i.subject.did) ?? []),
-        ]),
+        bulkWriteFollows(
+          agent,
+          [BSKY_APP_ACCOUNT_DID, ...(listItems?.map(i => i.subject.did) ?? [])],
+          starterPack
+            ? {uri: starterPack.uri, cid: starterPack.cid}
+            : undefined,
+        ),
         (async () => {
           // Interests need to get saved first, then we can write the feeds to prefs
           await agent.setInterestsPref({tags: selectedInterests})

src/screens/Onboarding/StepSuggestedStarterpacks/StarterPackCard.tsx

@@ -72,7 +72,10 @@ export function StarterPackCard({
 
     let followUris: Map<string, string>
     try {
-      followUris = await bulkWriteFollows(agent, dids)
+      followUris = await bulkWriteFollows(agent, dids, {
+        uri: view.uri,
+        cid: view.cid,
+      })
     } catch (e) {
       setIsProcessing(false)
       Toast.show(_(msg`An error occurred while trying to follow all`), {

src/screens/Onboarding/util.ts

@@ -4,13 +4,18 @@ import {
   type AppBskyGraphGetFollows,
   type BskyAgent,
   type ComAtprotoRepoApplyWrites,
+  type ComAtprotoRepoStrongRef,
 } from '@atproto/api'
 import {TID} from '@atproto/common-web'
 import chunk from 'lodash.chunk'
 
 import {until} from '#/lib/async/until'
 
-export async function bulkWriteFollows(agent: BskyAgent, dids: string[]) {
+export async function bulkWriteFollows(
+  agent: BskyAgent,
+  dids: string[],
+  via?: ComAtprotoRepoStrongRef.Main,
+) {
   const session = agent.session
 
   if (!session) {
@@ -22,6 +27,7 @@ export async function bulkWriteFollows(agent: BskyAgent, dids: string[]) {
       $type: 'app.bsky.graph.follow',
       subject: did,
       createdAt: new Date().toISOString(),
+      via,
     }
   })
 

src/screens/StarterPack/StarterPackScreen.tsx

@@ -372,7 +372,10 @@ function Header({
 
     let followUris: Map<string, string>
     try {
-      followUris = await bulkWriteFollows(agent, dids)
+      followUris = await bulkWriteFollows(agent, dids, {
+        uri: starterPack.uri,
+        cid: starterPack.cid,
+      })
     } catch (e) {
       setIsProcessing(false)
       Toast.show(_(msg`An error occurred while trying to follow all`), 'xmark')