test: restore removed tests including optimizations

Justfile

@@ -41,18 +41,27 @@ audit:
     mix deps.audit
     mix hex.audit
 
+# Run all tests
 test *args: install-dependencies
     mix test {{args}}
 
-# Run only fast tests (excludes slow/performance tests)
+# Run only fast tests (excludes slow/performance and UI tests)
 test-fast *args: install-dependencies
-    mix test --exclude slow {{args}}
+    mix test --exclude slow --exclude ui {{args}}
+
+# Run only UI tests
+ui *args: install-dependencies
+    mix test --only ui {{args}}
 
 # Run only slow/performance tests
+slow *args: install-dependencies
+    mix test --only slow {{args}}
+
+# Run only slow/performance tests (alias for consistency)
 test-slow *args: install-dependencies
     mix test --only slow {{args}}
 
-# Run all tests (fast + slow)
+# Run all tests (fast + slow + ui)
 test-all *args: install-dependencies
     mix test {{args}}