fix: Redis bool storage, tool tracking matching, e2e fixture scope

- Convert booleans to strings for Redis hset (Redis doesn't accept bool)
- Extract capability from delegate_to_X tool names for tracking
- Use loop_scope="module" for pytest-asyncio module-scoped fixtures
- Add note about using venv for tests in AGENTS.md

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/core/benchmarks.py

@@ -47,6 +47,10 @@ class PerformanceBenchmark(BaseModel):
         data = self.model_dump()
         data["timestamp"] = self.timestamp.isoformat()
         data["metadata"] = json.dumps(self.metadata)
+        # Convert booleans to strings (Redis doesn't accept bool type)
+        for key, value in data.items():
+            if isinstance(value, bool):
+                data[key] = str(value)
         return data
 
     @classmethod
@@ -54,6 +58,10 @@ class PerformanceBenchmark(BaseModel):
         """Reconstruct from Redis dict."""
         data["timestamp"] = datetime.fromisoformat(data["timestamp"])
         data["metadata"] = json.loads(data.get("metadata", "{}"))
+        # Convert string booleans back to bool
+        for key in ["success", "was_recommended", "was_actually_used"]:
+            if key in data and isinstance(data[key], str):
+                data[key] = data[key] == "True"
         return cls(**data)