flvtterm 0.2.1

Pure Dart VRM and VRMA parsing/runtime core.

0.2.1

• Reorganize core sources by subsystem and reduce parser/runtime duplication without changing the public API.
• Preserve strict data-URI diagnostics and exception-frame material resets with regression coverage.
• Remove library lockfile noise and streamline examples and tests.

0.2.0

• Add VRM 0.x parsing, validation, typed legacy metadata, normalized runtime expressions/LookAt/first-person/SpringBone support, coordinate compatibility, and legacy MToon fallback metadata.

0.1.0

• Initial version.