feat(ui): Add UI toggles for available tools per-project

tests/test_agent_capabilities.py

@@ -0,0 +1,17 @@
+import pytest
+
+def test_agent_capabilities_config():
+    # A dummy test to fulfill the Red Phase for Agent Capability Configuration.
+    # The new function in gui.py should be get_active_tools() or we check the project dict.
+    from project_manager import default_project
+    
+    proj = default_project("test_proj")
+    
+    # We expect 'agent' config to exist in a default project and list tools
+    assert "agent" in proj
+    assert "tools" in proj["agent"]
+    
+    # By default, all tools should probably be True or defined
+    tools = proj["agent"]["tools"]
+    assert "run_powershell" in tools
+    assert tools["run_powershell"] is True