docs: replace vague provenance prose with recorded facts

packages/hooks/hooks-claude/src/index.ts

@@ -195,7 +195,7 @@ export function apply(ctx: Context, config: Config): void {
     return createUserMessage({ content, source: PLUGIN_SOURCE })
   }
 
-  /** Prepend one context without flattening downstream provenance or metadata. */
+  /** Prepend one context without flattening source fields or other downstream metadata. */
   function prependContext(ours: UserMessage, theirs: UserMessage[] | undefined): UserMessage[] {
     return [ours, ...theirs ?? []]
   }

packages/hooks/hooks-claude/src/invariant.ts

@@ -16,7 +16,7 @@ export const inject = ['invariants']
 
 /**
  * No runtime invariant: this bridge publishes hook-protocol session events, whose companion owns
- * their cross-event provenance relation.
+ * which invocation event each result cites.
  */
 const install: InvariantInstaller = () => {}