fix(gemini): implement official hook contract

tests/test_settings_hook_detection.py

@@ -1,22 +1,15 @@
 from __future__ import annotations
 
-from collections.abc import Callable
-
-import pytest
-
-from elydora.plugins.gemini import _is_elydora_hook as is_gemini_hook
 from elydora.plugins.letta import _is_elydora_hook as is_letta_hook
 
 
-HookDetector = Callable[[dict, str], bool]
-
-
-@pytest.mark.parametrize("detector", [is_gemini_hook, is_letta_hook])
-def test_hook_detection_handles_only_string_commands(detector: HookDetector) -> None:
-    assert detector({"command": 42}, "") is False
-    assert detector({"hooks": [{"command": None}]}, "") is False
-    assert detector({"hooks": [{"command": "run .elydora/agent-1/hook.py"}]}, "") is True
-    assert detector(
+def test_hook_detection_handles_only_string_commands() -> None:
+    assert is_letta_hook({"command": 42}, "") is False
+    assert is_letta_hook({"hooks": [{"command": None}]}, "") is False
+    assert is_letta_hook(
+        {"hooks": [{"command": "run .elydora/agent-1/hook.py"}]}, ""
+    ) is True
+    assert is_letta_hook(
         {"hooks": [{"command": "run .elydora/agent-1/hook.py"}]},
         "agent-2",
     ) is False