fix: ng-helpers rejoint la surface dev.6, et son faux suit le contrat

e2e/bridge.ts

@@ -36,8 +36,24 @@ export interface BrokenInboxOutcome {
   readonly rejected: string | null;
   /** What `create` returned, on the impossible branch where it did not reject. */
   readonly returned: string | null;
-  /** The documents that appeared in this identity's public store despite the failure. */
+  /**
+   * The index documents this identity did not hold before, and holds after the failure.
+   *
+   * It does NOT enumerate a store, because there is no longer such a call: the documents in
+   * a store are not askable for, so what is read instead is every index document this
+   * identity HOLDS, through the shape query. The difference matters when reading the
+   * check it feeds: what it establishes is that a document survived, not where it sits.
+   */
   readonly appeared: readonly string[];
+  /**
+   * Which of the read's three states that observation came out of -- `success`, or the
+   * state it gave up in.
+   *
+   * An empty `appeared` means "nothing turned up" only under `success`. Under `pending`
+   * or `error` it means nobody answered, and a report that folded the two together would
+   * let a read that never started pass for a leak that never happened.
+   */
+  readonly observed: string;
 }
 
 /**
@@ -120,8 +136,6 @@ export interface IndexingBridge {
    * on the bridge because the claim had never been measured against a broker.
    */
   select(anchor: string, query: string): Promise<SelectOutcome>;
-  /** This identity's public documents. How an owner discovers a document it did not keep. */
-  listPublicDocs(): Promise<string[]>;
 
   /**
    * `create` with its inbox step made to fail — everything else real, against the