fix: activity name being ignored when starting live activity (#116)

Fixes #115

`startLiveActivity` was sending `activityId` as the bridge key, but
`StartVoltraOptions` declares `@Field activityName`. so the value was
silently dropped — activities always got a random UUID instead

## Changes
- Renamed `activityId` to `activityName` in the TS bridge types and call
sites so the key matches Swift.
  - Fixed the unit test that was asserting the wrong key.  
## Test plan
- [x] `npm test` — unit tests pass (including corrected `activityName
preserved` test)
  - [x] `npm run build` — type checking

---------

Co-authored-by: Szymon Chmal <szymon@chmal.it>

Author: rshallam

.changeset/fix-live-activity-naming.md

@@ -0,0 +1,5 @@
+---
+'voltra': patch
+---
+
+Fix iOS Live Activity naming so named activities can be reused more reliably across app launches.

packages/ios-client/src/VoltraModule.ts

@@ -11,7 +11,7 @@ import type {
 export type StartVoltraOptions = {
   target?: string
   deepLinkUrl?: string
-  activityId?: string
+  activityName?: string
   staleDate?: number
   relevanceScore?: number
   channelId?: string

packages/ios-client/src/live-activity/api.ts

@@ -185,7 +185,7 @@ export const startLiveActivity = async (
   const targetId = await VoltraModule.startLiveActivity(payload, {
     target: 'liveActivity',
     deepLinkUrl: options?.deepLinkUrl,
-    activityId: options?.activityName,
+    activityName: options?.activityName,
     channelId: options?.channelId,
     ...normalizedSharedOptions,
   })

packages/voltra/src/VoltraModule.ts

@@ -24,7 +24,7 @@ export type StartVoltraOptions = {
    * The ID/name of the Live Activity.
    * Allows you to rebind to the same activity on app restart.
    */
-  activityId?: string
+  activityName?: string
   /**
    * Unix timestamp in milliseconds
    */

packages/voltra/src/live-activity/__tests__/options.node.test.ts

@@ -111,7 +111,7 @@ describe('Live Activity Options', () => {
 
     expect(VoltraModule.startLiveActivity).toHaveBeenCalledWith(
       expect.anything(),
-      expect.objectContaining({ activityId: 'my-activity' })
+      expect.objectContaining({ activityName: 'my-activity' })
     )
   })
 })

packages/voltra/src/live-activity/api.ts

@@ -280,7 +280,7 @@ export const startLiveActivity = async (
   const targetId = await VoltraModule.startLiveActivity(payload, {
     target: 'liveActivity',
     deepLinkUrl: options?.deepLinkUrl,
-    activityId: options?.activityName,
+    activityName: options?.activityName,
     channelId: options?.channelId,
     ...normalizedSharedOptions,
   })