feat: added field "title" and switched to it to free up caption for its normal use

tests/engine/ImportExecutionEngine.e2e.test.ts

@@ -52,7 +52,7 @@ const insertedPosts: Array<{
 const insertedMedia: Array<{
   id: string;
   linkedPostIds: string[];
-  caption?: string;
+  title?: string;
 }> = [];
 
 const createdTags: string[] = [];
@@ -167,7 +167,7 @@ const mockMediaEngine = {
       id: `media-${Math.random().toString(36).substr(2, 9)}`,
       filename: path.basename(sourcePath),
       originalName: metadata?.originalName || path.basename(sourcePath),
-      caption: metadata?.caption,
+      title: metadata?.title,
       linkedPostIds: metadata?.linkedPostIds || [],
     };
     insertedMedia.push(result);
@@ -1044,9 +1044,9 @@ describe('ImportExecutionEngine E2E Tests', () => {
 
       expect(result.media.imported).toBe(1);
 
-      // Should be imported with caption from WXR title
+      // Should be imported with title from WXR title
       expect(insertedMedia.length).toBe(1);
-      expect(insertedMedia[0].caption).toBe('standalone-logo');
+      expect(insertedMedia[0].title).toBe('standalone-logo');
 
       // No linked posts (standalone)
       expect(insertedMedia[0].linkedPostIds.length).toBe(0);

tests/engine/ImportExecutionEngine.test.ts

@@ -1016,7 +1016,7 @@ describe('ImportExecutionEngine', () => {
       );
     });
 
-    it('should set caption from WXR title', async () => {
+    it('should set title from WXR title', async () => {
       const wxrMedia = createMockWxrMedia({ title: 'Beautiful Sunset' });
       const report = createMockAnalysisReport({
         media: {
@@ -1035,7 +1035,7 @@ describe('ImportExecutionEngine', () => {
       expect(mockMediaEngine.importMedia).toHaveBeenCalledWith(
         expect.any(String),
         expect.objectContaining({
-          caption: 'Beautiful Sunset',
+          title: 'Beautiful Sunset',
         })
       );
     });

tests/engine/MediaEngine.test.ts

@@ -535,11 +535,19 @@ describe('MediaEngine', () => {
     });
   });
 
-  describe('Alt Text and Caption', () => {
+  describe('Title, Alt Text and Caption', () => {
     beforeEach(() => {
       mockFiles.set('/source/image.jpg', Buffer.from('image-data'));
     });
 
+    it('should store title for display in lists and search', async () => {
+      const media = await mediaEngine.importMedia('/source/image.jpg', {
+        title: 'Mountain Sunrise Photo',
+      });
+
+      expect(media.title).toBe('Mountain Sunrise Photo');
+    });
+
     it('should store alt text for accessibility', async () => {
       const media = await mediaEngine.importMedia('/source/image.jpg', {
         alt: 'A scenic mountain view',
@@ -556,9 +564,10 @@ describe('MediaEngine', () => {
       expect(media.caption).toBe('Photo taken at Mt. Rainier, 2024');
     });
 
-    it('should handle media without alt or caption', async () => {
+    it('should handle media without title, alt or caption', async () => {
       const media = await mediaEngine.importMedia('/source/image.jpg');
 
+      expect(media.title).toBeUndefined();
       expect(media.alt).toBeUndefined();
       expect(media.caption).toBeUndefined();
     });
@@ -847,10 +856,36 @@ linkedPostIds: ["post-a", "post-b", "post-c"]`;
         return chain;
       });
 
-      const result = await mediaEngine.updateMedia('non-existent-id', { caption: 'New caption' });
+      const result = await mediaEngine.updateMedia('non-existent-id', { title: 'New title' });
       expect(result).toBeNull();
     });
 
+    it('should update media title', async () => {
+      vi.mocked(mockLocalDb.select).mockImplementation(() => {
+        const chain = createSelectChain();
+        chain.where = vi.fn().mockReturnValue({
+          ...chain,
+          get: vi.fn().mockResolvedValue({
+            id: 'media-id',
+            projectId: 'default',
+            originalName: 'test.jpg',
+            mimeType: 'image/jpeg',
+            size: 1024,
+            filePath: '/mock/media/test.jpg',
+            title: 'Old title',
+            createdAt: new Date(),
+            updatedAt: new Date(),
+          }),
+        });
+        return chain;
+      });
+
+      const result = await mediaEngine.updateMedia('media-id', { title: 'New title' });
+
+      expect(result).not.toBeNull();
+      expect(result?.title).toBe('New title');
+    });
+
     it('should update media caption', async () => {
       vi.mocked(mockLocalDb.select).mockImplementation(() => {
         const chain = createSelectChain();