The bed publishes the SDK before the base build

genesis passes --sdk-source so the installer raises the registry and publishes
the SDK ahead of the base, which now resolves it by version.

Claude-Session: https://claude.ai/code/session_01D6qtiYU3P9jk3pnAXyAFyx

test/integration/genesis.ts

@@ -64,6 +64,9 @@ export interface GenesisOptions {
    */
   toolsSource: string;
   catalogSource: string;
+  /** Where the shared library is built from — published before the base resolves it (ADR 0076). */
+  sdkSource: string;
+  sdkRef?: string;
   /** What of the catalogue to build. A branch under test is the usual reason this is not main. */
   catalogRef?: string;
   log?: (m: string) => void;
@@ -148,6 +151,8 @@ export async function genesis(o: GenesisOptions): Promise<GenesisResult> {
     `--tools-source ${o.toolsSource}`,
     `--catalog-source ${o.catalogSource}`,
     `--catalog-ref ${o.catalogRef ?? "main"}`,
+    `--sdk-source ${o.sdkSource}`,
+    `--sdk-ref ${o.sdkRef ?? "main"}`,
     // The choices, answered the unattended way. Both have one option today, so these are
     // redundant on purpose: the day a second filter exists, this bed keeps working instead of
     // refusing, and choosing becomes a thing it visibly does.