qvivid 0.1.3

CRAN maintenance

Replaced automatic ragg raster devices with base R PNG and TIFF devices using each R build’s platform-configured bitmap backend. This avoids an AddressSanitizer failure in the third-party AGG font cache while preserving qvivid’s raster-export and GIF APIs.
Added PNG/TIFF device regression coverage and permanent ASAN/UBSAN release gates so the complete installed-package test suite reaches the compiled statevector checks before release.
Made no changes to the public API, numerical results, or native statevector kernels.

Added a package-specific spelling dictionary for the cited author name in the Description.
Strengthened release preflight checks to exercise CRAN’s incoming spelling checks and require a current R-devel build.
Made no changes to runtime behavior, the public API, numerical results, plotting, or native code.

Revised the package description and added a reference for the implemented quantum-computing methods.
Made the animation examples executable when their optional dependency is available.
Removed redundant graphics-parameter changes and strengthened restoration of graphics parameters and devices.

Added an R-native circuit API with standard one- and two-qubit gates, rotation gates, custom unitary gates, and terminal measurement mapping.
Added interchangeable compiled and reference statevector backends with a common result schema.
Added reproducible terminal-shot sampling and optional gate-by-gate state recording.

Added tidy state, count, trajectory, and reduced Bloch-vector data.
Added circuit, phase-aware state, synchronized execution, Bloch-sphere, and Bloch-trajectory figures.
Added six visual presets and publication-sized PDF, SVG, PNG, and TIFF export.
Added optional GIF export for state evolution and Bloch trajectories.

Established the public 0.1.x API and schema compatibility policy described in the Getting Started vignette and README.
Added cross-platform checks and native/reference numerical parity tests.