Burn2Disk

• Bug 1 - SD Card not showing / not working (FIXED) SdCardManager.detectSdCard() rewritten to use StorageManager on API 24+ for proper removable-storage detection regardless of filesystem (FAT16, FAT32, exFAT, NTFS, ext4 all supported). Falls back to getExternalFilesDirs and Environment.getExternalStorageState on older devices. Removed filesystem-based filtering - SAF works on any format without root. Detected cards now return uri=Uri.EMPTY; the real write URI always comes from the SAF picker. DeviceSelectionScreen fixed the fatal URI mismatch: previously compared a file:// URI (detection) with a content:// URI (SAF persistence). This was ALWAYS false, trapping users in an infinite picker loop. SdCardBurnEngine improved with ISO parse error wrapping and per-file write error logging.
• Bug 2 - USB burn vague error messages (FIXED) Added BurnEngine.stage() helper that wraps each major phase. On failure it logs the exception class and message, then re-throws as BurnException with a stage prefix: "ISO parse failed: ..." "USB format failed: ..." "USB write failed: ..." FAT32 format block wrapped with stage(). ISO parse block wrapped with stage(). Fallback (libaums) catch now also wraps exceptions, surfacing when both paths fail.
• Changed Bumped version to 1.2.2 (versionCode 22).

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