Add GitHub Actions CI and fix tests for behavior changes

- Add test.yml workflow: runs bats on macOS for PRs and pushes to main
- Fix tests for new behavior: Stop plays complete sound, idle_prompt is silent,
  acceptEdits is interactive (not agent), only delegate is suppressed
- 31 tests passing

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

Author: garysheng

.github/workflows/test.yml

@@ -0,0 +1,19 @@
+name: Tests
+
+on:
+  pull_request:
+    branches: [main]
+  push:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install bats-core
+        run: brew install bats-core
+
+      - name: Run tests
+        run: bats tests/

tests/peon.bats

@@ -30,18 +30,18 @@ teardown() {
   [[ "$sound" == *"/packs/peon/sounds/Perm"* ]]
 }
 
-@test "Notification idle_prompt plays a complete sound" {
+@test "Notification idle_prompt does NOT play sound (Stop handles it)" {
   run_peon '{"hook_event_name":"Notification","notification_type":"idle_prompt","cwd":"/tmp/myproject","session_id":"s1","permission_mode":"default"}'
   [ "$PEON_EXIT" -eq 0 ]
-  afplay_was_called
-  sound=$(afplay_sound)
-  [[ "$sound" == *"/packs/peon/sounds/Done"* ]]
+  ! afplay_was_called
 }
 
-@test "Stop does NOT play any sound" {
+@test "Stop plays a complete sound" {
   run_peon '{"hook_event_name":"Stop","cwd":"/tmp/myproject","session_id":"s1","permission_mode":"default"}'
   [ "$PEON_EXIT" -eq 0 ]
-  ! afplay_was_called
+  afplay_was_called
+  sound=$(afplay_sound)
+  [[ "$sound" == *"/packs/peon/sounds/Done"* ]]
 }
 
 @test "UserPromptSubmit does NOT play sound normally" {
@@ -102,8 +102,14 @@ JSON
 # Agent/teammate detection
 # ============================================================
 
-@test "agent session (permission_mode=acceptEdits) suppresses sound" {
-  run_peon '{"hook_event_name":"SessionStart","cwd":"/tmp/myproject","session_id":"agent1","permission_mode":"acceptEdits"}'
+@test "acceptEdits is interactive, NOT suppressed" {
+  run_peon '{"hook_event_name":"SessionStart","cwd":"/tmp/myproject","session_id":"s1","permission_mode":"acceptEdits"}'
+  [ "$PEON_EXIT" -eq 0 ]
+  afplay_was_called
+}
+
+@test "delegate mode suppresses sound (agent session)" {
+  run_peon '{"hook_event_name":"SessionStart","cwd":"/tmp/myproject","session_id":"agent1","permission_mode":"delegate"}'
   [ "$PEON_EXIT" -eq 0 ]
   ! afplay_was_called
 }