fix: complete image pipeline - rotation, URL, preview

- Add rotation_degrees parameter to ImageProcessor.process_photo()
- Pass rotation through _auto_save_photo_from_extraction() to processor
- Allow no-crop fallback when crop_bounds is None
- Add buildPhotoUrl() helper to resolve backend URLs correctly
- Update frontend components to use backend URL for image sources
- Replace Use/Skip Photo buttons with checkbox in AI extraction UI
- Add images/ to .gitignore to prevent accidental commits

Addresses: rotation never applied, image 404s (relative to Next.js not backend), preview blank in edit form

.claude/settings.local.json

@@ -95,7 +95,9 @@
       "Bash(npx vitest *)",
       "Bash(sed -i 's/jest\\\\.fn\\(\\)/vi.fn\\(\\)/g' tests/hooks/useAIExtraction.test.ts)",
       "Bash(sed -i 's/as jest\\\\.Mock/as any/g' tests/hooks/useAIExtraction.test.ts)",
-      "Bash(grep -E \"\\\\.tsx?$\")"
+      "Bash(grep -E \"\\\\.tsx?$\")",
+      "Bash(sqlite3 *)",
+      "Skill(gsd-resume-work)"
     ]
   }
 }