feat: add static file serving with ETag caching

pipeline-runner/tests/conftest.py

@@ -23,10 +23,11 @@ def get_free_port():
 class PipelineServer:
     """Manages a pipeline-runner server instance for tests."""
 
-    def __init__(self, port, work_dir, verbose=False):
+    def __init__(self, port, work_dir, verbose=False, web_root=None):
         self.port = port
         self.work_dir = work_dir
         self.verbose = verbose
+        self.web_root = web_root
 
         test_dir = os.path.dirname(os.path.abspath(__file__))
         project_root = os.path.dirname(test_dir)
@@ -37,6 +38,8 @@ class PipelineServer:
             "pipelines_dir": os.path.join(work_dir, "pipelines") + "/",
             "logs_dir": os.path.join(work_dir, "logs") + "/",
         }
+        if web_root:
+            config["web_root"] = web_root
         self.config_path = os.path.join(work_dir, "pipeline-runner.conf")
         with open(self.config_path, "w") as f:
             json.dump(config, f)