feat(doctor): improve duplicate filename conflict UX with confirm modal, syntax-format nav, and i18n

- Remove [LoRAs] prefix noise from conflict detail display
- Limit inline conflict groups to 5, show remainder count
- Add 'Switch to Full Path Syntax' action in conflict card
- Add confirmation modal before resolving conflicts (shows rename strategy)
- Register resolveFilenameConflictsModal in ModalManager (fix no-op showModal)
- Switch to Interface section and add highlight animation on syntax-format nav
- Sync and translate conflictConfirm strings across all 10 locales

locales/en.json

@@ -1941,6 +1941,13 @@
             "conflictsResolveFailed": "Failed to resolve filename conflicts: {message}"
         }
     },
+    "conflictConfirm": {
+        "title": "Resolve Filename Conflicts",
+        "message": "Renaming by appending a 4-character hash to each duplicate filename.",
+        "note": "This operation renames files on disk. Model references in existing workflows may need updating if you use the A1111 syntax format.",
+        "confirm": "Rename Files",
+        "cancel": "Cancel"
+    },
     "banners": {
         "versionMismatch": {
             "title": "Application Update Detected",