feat(models): show Civitai model/version ids in model modal, always-on hash/id search

- Model modal hash footnote now shows Civitai model id and version id
  (right-aligned, quick-copy buttons); hidden for non-Civitai models
- Hash/id exact search (sha256/autov2/autov3/civitai ids) is now always
  on: the search-options "hash" toggle is removed and the search_hash
  query param is silently ignored for API compatibility
- Footnote render condition relaxed so autov3-only and id-only models
  still show the line
- i18n: 4 new keys translated in all 9 locales; filters.hash key removed

static/css/components/lora-modal/lora-modal.css

@@ -292,6 +292,15 @@
     font-size: 0.8em;
 }
 
+/* Civitai model/version ids — pushed to the right end of the footnote line */
+.hash-footnote .civitai-id-group {
+    display: inline-flex;
+    align-items: baseline;
+    flex-wrap: wrap;
+    gap: 4px 8px;
+    margin-left: auto;
+}
+
 .hash-footnote .hash-copy-btn {
     display: inline-flex;
     align-items: center;