chore: update .gitignore, remove tracked .pi-lens files, and sync pending changes

- Add .cache to .gitignore
- Remove .pi-lens/ from git tracking (already ignored)
- Update pi-agent-runner, pi-agent-wrapper modules
- Update claude-code agent module
- Update overlays, opencode-desktop package, and tests

tests/lib/agents-test.nix

@@ -12,17 +12,14 @@ let
       }
     );
   in
-    assert result.success == false;
-    {result = "pass";};
+    assert result.success == false; {result = "pass";};
 
   # Test 2: loadCanonical extracts loadAgents from input
   testLoadCanonical = let
     fakeInput = {lib.loadAgents = {test = {description = "test";};};};
     result = agentsLib.loadCanonical {agentsInput = fakeInput;};
   in
-    assert result == {test = {description = "test";};};
-    {result = "pass";};
-
+    assert result == {test = {description = "test";};}; {result = "pass";};
 in {
   unknown-tool-throws = testUnknownTool;
   load-canonical = testLoadCanonical;