fix: pass verify_ssl to direct-Supervisor httpx client

Per Gemini review on PR homeassistant-ai#1126: mirrors the verify=self.verify_ssl
pattern from rest_client.py:125 (class-level httpx_client). The
http://supervisor URL is plain HTTP and TLS-irrelevant in practice,
but the parameter keeps the constructor consistent with the
established HomeAssistantClient shape.

mock_client fixture extended with verify_ssl = True so the existing
Supervisor-direct tests exercise the new attribute access path.

Author: Patch76

src/ha_mcp/client/rest_client.py

@@ -484,7 +484,8 @@ async def _get_addon_logs_via_supervisor(self, slug: str) -> str:
 
         try:
             async with httpx.AsyncClient(
-                timeout=httpx.Timeout(self.timeout)
+                timeout=httpx.Timeout(self.timeout),
+                verify=self.verify_ssl,
             ) as client:
                 response = await client.get(
                     url,

tests/src/unit/test_tools_utility_supervisor_logs.py

@@ -39,6 +39,7 @@ def mock_client():
         client.base_url = "http://test.local:8123"
         client.token = "test-token"
         client.timeout = 30
+        client.verify_ssl = True
         client.httpx_client = MagicMock()
         return client