feat: polish & windviz & deploy

internal/datasets/lock_other.go

@@ -0,0 +1,11 @@
+//go:build !unix
+
+package datasets
+
+import "context"
+
+// flockExclusive is a no-op on platforms without flock. The service targets
+// Linux containers; this stub only keeps non-Unix builds compiling.
+func flockExclusive(_ context.Context, _ string) (func(), error) {
+	return func() {}, nil
+}