Pintonium

These changes improve shader/legacy integration and cross-mod compatibility for vintage rendering.

• Keep shadow depth targets synchronized when no shadow renderer and add disabled shadow samplers for safe sampler2DShadow usage.
• Make PipelineManager.pipeline volatile for worker-thread visibility.
• Adjust Sodium transformer matrix handling and add modelview/projection uniforms.
• Add IrisSamplers.addDisabledShadowSamplers implementation.
• Mark worker-visible WorldRenderingSettings fields volatile.
• BetterFoliage integration: add BetterFoliageCompat bridge and call sites in meshing task and CeleritasVintage debug output.
• Capture/restore legacy GL matrices via GlMatrixSnapshot and integrate into entity/terrain render flow to keep DH and shadow passes correct.
• Handle separate AO packing for 1.12 chunk builder.
• Add LightUtilMixin to honor shaderpack oldLighting directive.
• Vintage Iris pipeline: attempt using shader-pack block entity programs, handle PBR/fresnel layouts, and improve debug logging.
• Distant Horizons compatibility: capture/restore OpenGL state (DhRenderStateSnapshot) and mixins to isolate DH rendering.
• Scannable compatibility mixins to avoid unsafe depth paths.
• Small shader and misc tweaks and bump project_base_version to 2.4.1.