Update all wiki pages to reflect 8-class segmentation model - Model-Architecture.md: num_classes 4→8, full 8-class listing with WHO categories, updated parameter table (CPU=2.2M), updated class weights - Training-Guide.md: --num-classes default 8, training output format for all 7 classes, test-set evaluation output, updated hardware table with actual timing - Evaluation-Results.md: dataset size 8,673/1,858/1,860, config table updated (2.2M params, depth=2, ~15min/epoch), per-class metrics table ready for results - Dataset-Setup.md: actual folder names (Gliomas/, Meningothelial Tumors/, etc.), class mapping table with all 7 WHO categories + pseudo-label explanation
Add Dataset Setup, Model Architecture, Training Guide, Evaluation Results pages; fix Home link