A runtime compiled to a binary runs itself (hq ADR 0193)

A compiled bundle records the binary it is (BinaryOf, shared by the builder and the composer), and
the node's runtime, when it is one, is run as ./<binary> from its own unpacked bundle rather than by
an interpreter and an entrypoint.

internal/catalogue/manifest.go

@@ -607,6 +607,9 @@ type Bundle struct {
 	// Launchers are the executables the build wrote beside its entrypoints, by entrypoint (novox/hq
 	// ADR 0193). A bundle built before them has none, and is served as it was built.
 	Launchers map[string]string `json:"launchers,omitempty"`
+	// Binary is the executable a bundle compiled to a binary is, at its root (novox/hq ADR 0193):
+	// what runs it, where an interpreted bundle names an interpreter and an entrypoint.
+	Binary string `json:"binary,omitempty"`
 }
 
 // Build says how to produce this module's artifacts from its source.