Fix/V2/unzip_images (#4647)

Method Usage by Context

| Context | Method Used | Respects Preferences | HTML Detection |

|------------------------------|-------------------------------------------------------|------------------------|----------------|
| Tools (via useToolResources) | extractZipFiles() →
extractWithPreferences() | ✅ Yes | ✅ Yes |
| Automation | extractAutomationZipFiles() → extractAllFiles() | ❌ No
(always extracts) | ✅ Yes |
| Manual Unzip | extractAndStoreFilesWithHistory() → extractAllFiles() |
❌ No (always extracts) | ✅ Yes |
| Auto-Upload | extractAllFiles() directly | ❌ No (always extracts) | ✅
Yes |

  Detailed Behavior Matrix

| Context | HTML Files | Auto-Unzip OFF | Within Limit | Exceeds Limit |
Notes |

|--------------------------|-------------|----------------|--------------|---------------|----------------------------------------|
| Tools (useToolResources) | Keep zipped | Keep zipped | Extract all |
Keep zipped | Respects user preferences |
| Automation | Keep zipped | Extract all | Extract all | Extract all |
Ignores preferences (automation needs) |
| Manual Unzip | Keep zipped | Extract all | Extract all | Extract all |
User explicitly unzipping |
| Auto-Upload | Keep zipped | Extract all | Extract all | Extract all |
User dropped files |

  Simplified Decision Flow

  ZIP File Received
      │
      ├─ Contains HTML? → Keep as ZIP (all contexts)
      │
      └─ No HTML
          │
          ├─ Tools Context
          │   ├─ Auto-unzip OFF? → Keep as ZIP
          │   └─ Auto-unzip ON
          │       ├─ File count ≤ limit? → Extract all
          │       └─ File count > limit? → Keep as ZIP
          │
          └─ Automation/Manual/Auto-Upload
              └─ Extract all (ignore preferences)

  Key Changes from Previous Version
  
| Entry Point | Code Path | skipAutoUnzip | Respects Preferences? | HTML
Detection? | Extraction Behavior |

|-----------------------------------------------|----------------------------------------------------------------------------------------|---------------|-----------------------|---------------------------|-------------------------------------------------------------------------|
| Direct File Upload (FileEditor, LandingPage) |
FileContext.addRawFiles() → fileActions.addFiles() | True | ❌ No | ✅ Yes
| Always extract (except HTML ZIPs) |
| Tool Outputs (Split, Merge, etc.) | useToolResources.extractZipFiles()
→ zipFileService.extractWithPreferences() | false | ✅ Yes | ✅ Yes |
Conditional: Only if autoUnzip=true AND file count ≤ autoUnzipFileLimit
|
| Load from Storage (FileManager) | fileActions.addStirlingFileStubs() |
N/A | N/A | N/A | No extraction - files already processed |
| Automation Outputs |
AutomationFileProcessor.extractAutomationZipFiles() →
zipFileService.extractAllFiles() | N/A | ❌ No | ✅ Yes | Always extract
(except HTML ZIPs) |
| Manual Unzip Action (FileEditor context menu) |
zipFileService.extractAndStoreFilesWithHistory() → extractAllFiles() |
N/A | ❌ No | ✅ Yes (blocks extraction) | Always extract (except HTML
ZIPs) - explicit user action |

---------

Co-authored-by: Connor Yoh <[email protected]>

frontend/src/hooks/tools/shared/useToolOperation.ts

@@ -151,7 +151,7 @@ export const useToolOperation = <TParams>(
   const { state, actions } = useToolState();
   const { actions: fileActions } = useFileContext();
   const { processFiles, cancelOperation: cancelApiCalls } = useToolApiCalls<TParams>();
-  const { generateThumbnails, createDownloadInfo, cleanupBlobUrls, extractZipFiles, extractAllZipFiles } = useToolResources();
+  const { generateThumbnails, createDownloadInfo, cleanupBlobUrls, extractZipFiles } = useToolResources();
 
   // Track last operation for undo functionality
   const lastOperationRef = useRef<{
@@ -259,11 +259,6 @@ export const useToolOperation = <TParams>(
             // Default: assume ZIP response for multi-file endpoints
             // Note: extractZipFiles will check preferences.autoUnzip setting
             processedFiles = await extractZipFiles(response.data);
-
-            if (processedFiles.length === 0) {
-              // Try the generic extraction as fallback
-              processedFiles = await extractAllZipFiles(response.data);
-            }
           }
           // Assume all inputs succeeded together unless server provided an error earlier
           successSourceIds = validFiles.map(f => (f as any).fileId) as any;
@@ -446,7 +441,7 @@ export const useToolOperation = <TParams>(
       actions.setLoading(false);
       actions.setProgress(null);
     }
-  }, [t, config, actions, addFiles, consumeFiles, processFiles, generateThumbnails, createDownloadInfo, cleanupBlobUrls, extractZipFiles, extractAllZipFiles]);
+  }, [t, config, actions, addFiles, consumeFiles, processFiles, generateThumbnails, createDownloadInfo, cleanupBlobUrls, extractZipFiles]);
 
   const cancelOperation = useCallback(() => {
     cancelApiCalls();