v0.5.2

Fixed

• Non-manifold mesh fallback — parts that fail manifold creation (e.g. thin linear_extrude) now render via direct polygon conversion instead of being silently dropped
• Removed unsafe code — bumped genai to 0.6.0-beta.3 which threads auth resolver through all_model_names(), eliminating the set_var workaround; unsafe_code lint reverted to forbid
• Verification state reset — verification state now properly resets to Idle after AI streaming ends