feat(P3.T2): DeviceRecord.revokedAt + revokeDevice wrapper

Extend DeviceRecord with revokedAt field, update registerDevice and
listOwnDevices selects to include revoked_at, add revokeDevice RPC
helper, update db-types to reflect T1 migration schema, and add
vitest coverage for all new behaviour.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

packages/db-types/src/index.ts

@@ -119,6 +119,7 @@ export type Database = {
           name: string
           platform: Database["public"]["Enums"]["device_platform"]
           public_key: string | null
+          revoked_at: string | null
           user_id: string
         }
         Insert: {
@@ -128,6 +129,7 @@ export type Database = {
           name: string
           platform: Database["public"]["Enums"]["device_platform"]
           public_key?: string | null
+          revoked_at?: string | null
           user_id: string
         }
         Update: {
@@ -137,6 +139,7 @@ export type Database = {
           name?: string
           platform?: Database["public"]["Enums"]["device_platform"]
           public_key?: string | null
+          revoked_at?: string | null
           user_id?: string
         }
         Relationships: []
@@ -481,6 +484,7 @@ export type Database = {
     Functions: {
       accept_dm: { Args: { conversation_id: string }; Returns: undefined }
       are_friends: { Args: { a: string; b: string }; Returns: boolean }
+      revoke_device: { Args: { p_device_id: string }; Returns: undefined }
       attachment_object_conv_id: {
         Args: { object_name: string }
         Returns: string

packages/shared/src/auth/device.test.ts

@@ -0,0 +1,52 @@
+import { describe, expect, it, vi } from 'vitest';
+
+import { listOwnDevices, revokeDevice } from './device';
+
+function makeClient(overrides: {
+  user?: { id: string } | null;
+  selectData?: Array<{ id: string; name: string; platform: string; last_seen_at: string; revoked_at: string | null }>;
+  rpcImpl?: (fn: string, params: unknown) => Promise<{ data: unknown; error: unknown }>;
+}): any {
+  const builder: any = {
+    select: vi.fn().mockReturnThis(),
+    eq: vi.fn().mockReturnThis(),
+    order: vi.fn().mockResolvedValue({ data: overrides.selectData ?? [], error: null }),
+  };
+  return {
+    auth: { getUser: vi.fn().mockResolvedValue({ data: { user: overrides.user ?? { id: 'u-1' } } }) },
+    from: vi.fn().mockReturnValue(builder),
+    rpc: vi.fn().mockImplementation(overrides.rpcImpl ?? (async () => ({ data: null, error: null }))),
+  };
+}
+
+describe('listOwnDevices', () => {
+  it('maps revoked_at into revokedAt', async () => {
+    const client = makeClient({
+      selectData: [
+        { id: 'd-1', name: 'Laptop', platform: 'desktop', last_seen_at: '2026-05-16T00:00:00Z', revoked_at: null },
+        { id: 'd-2', name: 'Old phone', platform: 'mobile', last_seen_at: '2026-05-10T00:00:00Z', revoked_at: '2026-05-15T12:00:00Z' },
+      ],
+    });
+    const out = await listOwnDevices(client);
+    expect(out).toEqual([
+      { id: 'd-1', name: 'Laptop', platform: 'desktop', lastSeenAt: '2026-05-16T00:00:00Z', revokedAt: null },
+      { id: 'd-2', name: 'Old phone', platform: 'mobile', lastSeenAt: '2026-05-10T00:00:00Z', revokedAt: '2026-05-15T12:00:00Z' },
+    ]);
+  });
+});
+
+describe('revokeDevice', () => {
+  it('invokes the revoke_device RPC with the device id', async () => {
+    const rpc = vi.fn().mockResolvedValue({ data: null, error: null });
+    const client = makeClient({ rpcImpl: rpc });
+    await revokeDevice(client, 'd-42');
+    expect(rpc).toHaveBeenCalledWith('revoke_device', { p_device_id: 'd-42' });
+  });
+
+  it('throws when the RPC returns an error', async () => {
+    const client = makeClient({
+      rpcImpl: async () => ({ data: null, error: { message: 'not authorized', code: '42501' } as any }),
+    });
+    await expect(revokeDevice(client, 'd-99')).rejects.toThrow(/not authorized/);
+  });
+});

packages/shared/src/auth/device.ts

@@ -16,6 +16,7 @@ export interface DeviceRecord {
   name: string;
   platform: DevicePlatform;
   lastSeenAt: string;
+  revokedAt: string | null;
 }
 
 export async function registerDevice(
@@ -32,7 +33,7 @@ export async function registerDevice(
       name: params.name,
       platform: params.platform,
     })
-    .select('id, name, platform, last_seen_at')
+    .select('id, name, platform, last_seen_at, revoked_at')
     .single();
   if (error) throw error;
 
@@ -41,6 +42,7 @@ export async function registerDevice(
     name: data.name,
     platform: data.platform,
     lastSeenAt: data.last_seen_at,
+    revokedAt: data.revoked_at,
   };
 }
 
@@ -50,7 +52,7 @@ export async function listOwnDevices(client: AppSupabaseClient): Promise<DeviceR
 
   const { data, error } = await client
     .from('devices')
-    .select('id, name, platform, last_seen_at')
+    .select('id, name, platform, last_seen_at, revoked_at')
     .eq('user_id', session.user.id)
     .order('last_seen_at', { ascending: false });
   if (error) throw error;
@@ -60,6 +62,7 @@ export async function listOwnDevices(client: AppSupabaseClient): Promise<DeviceR
     name: row.name,
     platform: row.platform,
     lastSeenAt: row.last_seen_at,
+    revokedAt: row.revoked_at,
   }));
 }
 
@@ -74,6 +77,14 @@ export async function touchDeviceLastSeen(
   if (error) throw error;
 }
 
+export async function revokeDevice(
+  client: AppSupabaseClient,
+  deviceId: string,
+): Promise<void> {
+  const { error } = await client.rpc('revoke_device', { p_device_id: deviceId });
+  if (error) throw new Error(error.message);
+}
+
 // Intentional re-exports so app layers only need @chat-app/shared/auth.
 export type { SecretStore } from './secure-storage';
 export { toBase64 as base64FromBytes, fromBase64 as bytesFromBase64 };