chore: merge origin/dev, bump version to 0.1.4

Resolve conflicts in api/openapi.yaml and src/wrenn/models/_generated.py
by keeping the fix/0.2-compatibility versions (v0.2 API is authoritative).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

tests/test_integration.py

@@ -15,6 +15,17 @@ pytestmark = pytest.mark.integration
 _env_loaded = False
 
 
+def _wait_for_pid_dead(capsule: Capsule, pid: int, timeout: float = 5.0) -> bool:
+    deadline = time.monotonic() + timeout
+    while time.monotonic() < deadline:
+        result = capsule.commands.run(f"ps -p {pid} -o stat= 2>/dev/null || true")
+        state = result.stdout.strip()
+        if not state or state.startswith("Z"):
+            return True
+        time.sleep(0.2)
+    return False
+
+
 def _ensure_env() -> None:
     global _env_loaded
     if _env_loaded:
@@ -218,11 +229,7 @@ class TestCommands:
     def test_kill_process(self):
         handle = self.capsule.commands.run("sleep 30", background=True)
         self.capsule.commands.kill(handle.pid)
-        time.sleep(0.5)
-
-        processes = self.capsule.commands.list()
-        pids = [p.pid for p in processes]
-        assert handle.pid not in pids
+        assert _wait_for_pid_dead(self.capsule, handle.pid)
 
     def test_run_duration_ms(self):
         result = self.capsule.commands.run("sleep 1")