feat(curation): allowlist wizard source_context so user-created flows surface

EA2_DRAFT_PROCESS:process_creation and fm06-t10-demo-reset-v2 added to
STARTABLE_SOURCE_CONTEXTS. Wizard-published flows now reach the Hub
catalogue and the Assistant's list_processes reply.

src/lib/flowCuration.ts

@@ -40,6 +40,11 @@ export const STARTABLE_FLOW_KEYS = new Set<string>([
   "pr_to_po_def",
 ]);
 
+const STARTABLE_SOURCE_CONTEXTS = new Set<string>([
+  "EA2_DRAFT_PROCESS:process_creation",
+  "fm06-t10-demo-reset-v2",
+]);
+
 const HEX32 = /[a-f0-9]{32}/gi;
 const HEX_SUFFIX = /[_-][a-f0-9]{8,}$/i;
 
@@ -56,7 +61,7 @@ export function curatedPublishedFlows<T extends RawFlow>(items: T[]): T[] {
       it.kind === "definition" &&
       !!it.display_name &&
       !isDevArtefact(it) &&
-      STARTABLE_FLOW_KEYS.has(it._key)
+      (STARTABLE_FLOW_KEYS.has(it._key) || (it.source_context && STARTABLE_SOURCE_CONTEXTS.has(it.source_context)))
   );
 }