docs: add BUG-13 — server web UI shows raw coords instead of geocoded location

- Trips 18517, 18516 show (x,y) instead of address/street name
- Likely regression in geocoding pipeline or cache lookup
- Plan: rework server-side geocoding, backport to Pi if simple

android/app/src/main/java/com/yarisobd/app/DownloadWorker.kt

@@ -110,10 +110,11 @@ class DownloadWorker(
                         sink.write(buffer, read)
                         downloaded += read
 
-                        // Update notification progress
+                        // Update notification + WorkManager progress
                         if (total > 0) {
                             val pct = ((downloaded * 100) / total).toInt()
                             setForeground(createForegroundInfo(filename, pct, downloaded, total))
+                            setProgressAsync(workDataOf("pct" to pct))
                         }
                     }
                 }