feat(core): Wire tool toggles to AI provider tool declaration payload

tests/test_agent_tools_wiring.py

@@ -0,0 +1,23 @@
+import pytest
+from ai_client import set_agent_tools, _build_anthropic_tools
+
+def test_agent_tools_wiring():
+    # Only enable read_file and run_powershell
+    agent_tools = {
+        "run_powershell": True,
+        "read_file": True,
+        "list_directory": False,
+        "search_files": False,
+        "get_file_summary": False,
+        "web_search": False,
+        "fetch_url": False
+    }
+    set_agent_tools(agent_tools)
+    
+    anth_tools = _build_anthropic_tools()
+    tool_names = [t["name"] for t in anth_tools]
+    
+    assert "read_file" in tool_names
+    assert "run_powershell" in tool_names
+    assert "list_directory" not in tool_names
+    assert "web_search" not in tool_names