fix: add hypothesis to test deps and fix missing imports in deep tests

requirements/test.txt

@@ -1,3 +1,4 @@
 # Requirements for test.
 coverage
+hypothesis
 pytest

test/backtesting/test_vbt_backtest_deep.py

@@ -1,3 +1,4 @@
+
 """Deep property-based tests for the unified backtest engine.
 
 Extends test_vbt_backtest.py with hypothesis-based property tests,
@@ -10,8 +11,8 @@ import numpy as np
 import pandas as pd
 import pytest
 
-from hypothesis import assume, given, settings
 from hypothesis import strategies as st
+from hypothesis import assume, given, settings
 from hypothesis.extra.numpy import arrays
 
 from rdagent.components.backtesting.vbt_backtest import (

test/local/test_autopilot.py

@@ -5,6 +5,8 @@ the StrategyOrchestrator at the correct import path.
 """
 
 from __future__ import annotations
+from hypothesis import given, settings, HealthCheck
+from hypothesis import strategies as st
 
 import sys
 from pathlib import Path

test/local/test_continuous_strategies.py

@@ -5,6 +5,8 @@ without requiring real StrategyOrchestrator connections.
 """
 
 from __future__ import annotations
+from hypothesis import given, settings, HealthCheck
+from hypothesis import strategies as st
 
 import sys
 from pathlib import Path

test/local/test_gen_strategies.py

@@ -5,6 +5,8 @@ criteria, and the TeeFile logger — without requiring real OHLCV data or LLM.
 """
 
 from __future__ import annotations
+from hypothesis import given, settings, HealthCheck
+from hypothesis import strategies as st
 
 import json
 import os

test/local/test_nexquant_parallel.py

@@ -5,6 +5,8 @@ command building, and API key loading logic.
 """
 
 from __future__ import annotations
+from hypothesis import given, settings, HealthCheck
+from hypothesis import strategies as st
 
 import os
 import signal

test/qlib/test_verify_runtime_deep.py

@@ -1,3 +1,4 @@
+
 """Deep tests for verify_runtime — property-based, fuzzing, edge cases.
 
 Extends test_verify_runtime.py with property-based tests using hypothesis
@@ -15,8 +16,8 @@ import pytest
 PROJECT_ROOT = Path(__file__).parent.parent.parent
 sys.path.insert(0, str(PROJECT_ROOT))
 
-from hypothesis import assume, given, settings
 from hypothesis import strategies as st
+from hypothesis import given, settings
 from hypothesis.extra.numpy import arrays
 
 from rdagent.components.backtesting.verify import verify_and_log, verify_backtest_result