[nai62]

• Test fixture directories could be removed before queued QObject destruction and running page loads released their archive handles on Windows. Wait up to five seconds while processing events, and fail the test if cleanup still cannot finish.
• Replace deprecated Qt touch and key-combination accessors and omit unused parameter names. Use zlib's CRC-32 and Qt's endian writer in a PNG chunk helper, keep generated HSV values in range, load the viewer's cursor resources in navigation tests, and leave room for the native frame around the standalone button test.
• Update resvg to 0.49.0 and use its corrected C API error definitions. Track Cargo manifests, Cargo.lock, and Rust sources so existing libraries rebuild after a submodule update. Expand unrar header paths during qmake generation.
• Add regressions for an open file released by an owner-thread callback, archive-load cleanup, and SVG parse, size, and gzip failures.
• Checked scripts\verify-windows.cmd debug --qmake on Windows, including recompilation of resvg 0.49.0: exit code 0, 531 cases across all 10 suites, no failures or skips, no compiler or qmake warnings, and no new leftover fixture directories.
• The remaining nine QWARN messages are intentional: four SVG fallback diagnostics and five broken-AVIF rejection diagnostics. Interactive Windows touch scrolling, pinch, rotation, and SVG rendering checks are still unverified.