test(bf-1zxrz): verify degraded fixture exists and is readable

- File exists at tests/fixtures/scanned/low-quality/degraded-200dpi.pdf (588KB)
- File is readable with 644 permissions
- PDF validity confirmed: %PDF-1.4 header and %%EOF marker present

Verification note: notes/bf-1zxrz.md

notes/bf-1zxrz.md

@@ -0,0 +1,33 @@
+# bf-1zxrz: Verify degraded fixture exists and is readable
+
+## Task Completed
+
+Verified the degraded 200 DPI fixture file exists and is readable.
+
+## Verification Results
+
+### File Existence
+- **Path:** `tests/fixtures/scanned/low-quality/degraded-200dpi.pdf`
+- **Status:** ✅ EXISTS
+- **Size:** 601,199 bytes (~588 KB)
+- **Last modified:** July 6, 2026
+
+### File Permissions
+- **Permissions:** 644 (rw-r--r--)
+- **Owner:** coding:users
+- **Status:** ✅ READABLE (world-readable)
+
+### PDF Validity
+- **Header:** `%PDF-1.4` ✅
+- **EOF marker:** `%%EOF` ✅
+- **Status:** ✅ VALID PDF
+
+## Acceptance Criteria Status
+
+- [x] File exists at tests/fixtures/scanned/low-quality/degraded-200dpi.pdf
+- [x] File is readable (has read permissions)
+- [x] File passes basic PDF validity check
+
+## Notes
+
+The fixture file is in good condition with proper PDF structure. File permissions are appropriate for test fixtures (644 allows read access to all users).