refactor: reuse shared model hash extraction

tests/test_search_hash_methods.mjs

@@ -49,6 +49,7 @@ test('search hash extraction checks result and nested provider fields in priorit
   assert.equal(dialog.getSearchResultSha256({ hash: 'invalid', file_info: { hash: hashB } }), hashB);
   assert.equal(dialog.getSearchResultSha256({ hashes: { SHA256: hashA }, sha256: hashB }), hashB);
   assert.equal(dialog.getSearchResultSha256({ file_info: { hashes: { sha256: hashA } } }), hashA);
+  assert.equal(dialog.getSearchResultSha256({ sha256: 'invalid', hash: hashB }), hashB);
   assert.equal(dialog.getSearchResultSha256({ hashes: null, file_info: null }), '');
 });
 
@@ -133,5 +134,6 @@ test('local hash extraction checks direct, model, and nested hash fields', () =>
   assert.equal(dialog.getLocalMatchHash({ sha256: hashA, model: { sha256: hashB } }), hashA);
   assert.equal(dialog.getLocalMatchHash({ model: { hash: hashB } }), hashB);
   assert.equal(dialog.getLocalMatchHash({ model: { hashes: { SHA256: hashA } } }), hashA);
+  assert.equal(dialog.getLocalMatchHash({ hashes: { SHA256: hashA }, model: { sha256: hashB } }), hashB);
   assert.equal(dialog.getLocalMatchHash({}), '');
 });

web/resolver/search/search_hash_methods.js

@@ -1,4 +1,4 @@
-import { normalizeSha256 } from '../utils/hash_utils.js';
+import { getSha256Field, normalizeSha256 } from '../utils/hash_utils.js';
 import { normalizeSourceKey } from '../utils/source_labels.js';
 
 export const searchHashMethods = {
@@ -137,14 +137,11 @@ export const searchHashMethods = {
 
     getLocalMatchHash(match = {}) {
         const model = match.model || {};
-        const hashes = model.hashes && typeof model.hashes === 'object' ? model.hashes : {};
+        const modelHash = getSha256Field(model);
         return String(
             match.sha256
             || match.hash
-            || model.sha256
-            || model.hash
-            || hashes.SHA256
-            || hashes.sha256
+            || modelHash
             || ''
         ).trim();
     },