add tester ui, and restructure folders

ctrl/Tiltfile

@@ -23,9 +23,16 @@ docker_build(
     dockerfile='Dockerfile.lambda',
     ignore=['.git', 'def', '.venv', 'docs', '__pycache__', '.pytest_cache'],
     live_update=[
-        sync('../lambda_function.py', '/app/lambda_function.py'),
+        # Whole functions/ directory — new files appear in the tester's
+        # function list automatically; edits to existing files cause uvicorn
+        # to drop them from the warm-cache so the next invoke is cold (the
+        # `reset_modules` endpoint also lets you force it manually).
+        sync('../functions', '/app/functions'),
         sync('../invoke.py', '/app/invoke.py'),
         sync('../seed.py', '/app/seed.py'),
+        # runner.py change → uvicorn --reload restarts the process → all
+        # function modules drop out of the cache, next invocation cold.
+        sync('../runner.py', '/app/runner.py'),
     ],
 )
 
@@ -45,7 +52,18 @@ k8s_resource('lambda', resource_deps=['minio'])
 k8s_resource('docs')
 k8s_resource('gateway', resource_deps=['docs', 'minio'])
 
+# Hot-reload gateway Caddy on Caddyfile edit. configMapGenerator uses
+# disableNameSuffixHash so the Deployment template doesn't change → kustomize
+# won't roll the pod on its own. This local_resource closes the loop.
+local_resource(
+    'gateway-reload',
+    cmd='kubectl --context kind-eth -n eth rollout restart deployment/gateway',
+    deps=['k8s/base/Caddyfile'],
+    resource_deps=['gateway'],
+    auto_init=False,
+)
+
 k8s_resource(
-    objects=['eth:namespace', 'eth-config:configmap'],
+    objects=['eth:namespace', 'eth-config:configmap', 'gateway-config:configmap'],
     new_name='infra',
 )