DLV-I10: indexer_config_readers; and indexer_read_findings with its views event

indexer_config_readers {module} answers {readers: [{module, key, kind,
readers}]} for every value key and own secret any kept manifest of the
module ever declared: the module where its trunk's manifest declares it,
each open pull request whose head declares it, none for a key no longer
read (design 32 *A value no longer read*). It reads one watched copy of
the modules, manifests and config-candidates states. Nodes is left out:
the indexer cannot say which nodes' builds read a key. The indexer's
findings are said on its views family and read by indexer_read_findings,
for the condition keeper (the lead's ruling).

Issue 1966.

Claude-Session: https://claude.ai/code/session_01JG73KJNrH5EgFXMKKYSrig

modules/mesh-delivery-indexer/module.json

@@ -32,8 +32,10 @@
     "indexer_read_graph",
     "indexer_read_heard",
     "indexer_read_taken",
+    "indexer_read_findings",
     "indexer_first_views",
-    "indexer_first_view_again"
+    "indexer_first_view_again",
+    "indexer_config_readers"
   ],
   "consumes": [
     "mesh-build-go.toolchain.reported",