refactor!: enforce canonical evidence and provider boundaries

Deliver complete Evidence directly through MCP with required nullable analysis profiles and immutable per-server delivery settings. Bind selected environments at construction and require typed cleanup outcomes with retained retry ownership.

Remove test-only routing, duplicate session and snapshot metadata, producer-field repairs, and ambiguous provider arguments. Separate artifact byte identity from occurrence classification and retain typed source-map and partial native facts across CLI, MCP, and verifier consumers.

BREAKING CHANGE: obsolete Evidence envelopes, session aliases, incomplete snapshots, and missing normalized producer facts are no longer accepted.

src/domain/javascript/javascriptFeatureSeed.ts

@@ -107,6 +107,16 @@ const candidateFields = (
               value: observation.label,
             },
           ]),
+      ...(observation.source_map_reference !== null &&
+      observation.source_map_reference.resolution.kind !== "unresolved"
+        ? [
+            {
+              basis: "property" as const,
+              field: `observations[${String(index)}].source_map_reference.resolution.path`,
+              value: observation.source_map_reference.resolution.path,
+            },
+          ]
+        : []),
       ...propertyFields(
         observation.properties,
         `observations[${String(index)}].properties`,
@@ -140,6 +150,7 @@ const relevantFields = {
     ".path",
     ".source",
     ".original_source",
+    ".source_root",
     ".exports",
   ],
   "native-export": [".label", ".key", ".requested_members", ".members"],
@@ -156,6 +167,15 @@ const identityFields = (node: ApplicationNode): CandidateField[] => {
         field: "identity.original_source",
         value: identity.original_source,
       },
+      ...(identity.source_root === null
+        ? []
+        : [
+            {
+              basis: "identity" as const,
+              field: "identity.source_root",
+              value: identity.source_root,
+            },
+          ]),
     ];
   if (identity.strategy === "canonical-path")
     return [