ZigCRT 1.1

- Added Minecraft Java Edition 26.2 shader-pipeline compatibility.
- Added a proper gbuffers_basic base pass instead of relying on legacy loader fallbacks.
- Added gbuffers_textured and gbuffers_textured_lit fallback passes for terrain, entities, hand rendering, particles, weather, water, and other vanilla geometry.
- Added vanilla lightmap handling and distance fog to the lit fallback path.
- Added an explicit final pass for more predictable output on current Iris versions.
- Added shaders.properties compatibility settings and disabled the unused shadow pass.
- Fixed minor screen-edge artifacts caused by CRT distortion sampling outside the frame.
- Stabilized horizontal/vertical distortion so both axes use the original screen coordinates.
- Clamped final color output to prevent invalid negative RGB values on very dark pixels.
- Preserved the original ZigCRT scanlines, color quantization, vignette, and animation behavior.
