0.8.11

• Preserve fully opaque image source colors with a depth-tested post-shader pass on the Iris/Oculus rendering path, while retaining the original world draw's surrounding bloom.
• Preserve shader-processed semi-transparent/edge samples without applying alpha twice. Arbitrary depth rewriting, refraction and later postprocessing remain shader-pack limitations; see the precise contract in tools/shader/README.md.
• Add checksum-pinned, opt-in Sodium/Embeddium, Iris/Oculus, Complementary and supported Extra development stacks, plus actual shader framebuffer regression controls across all five supported Minecraft/loader targets.
• Verify source RGB, foreground occlusion, reload, alpha, measured convergence, independent repeat variation, and genuine screen-by-bloom interaction.
• Inherit NeoForge 26 vanilla text pipeline routing so Iris also processes the original world image as a bloom source.
• Keep existing required dependencies, media, configuration and world data unchanged.