Add example library, per-tab documentation, Guide tab, clearer axis labels

Add MLM surprise tab: per-base -log p(true) along the sequence

Rework embedding UI: per-position plot, wider output column, E. coli example

Add embedding stats, full-width layout, 3-column design

Add layer selection, heatmap, trajectory visualizations

Add API documentation tab

Fix tokenization: use integer IDs instead of one-hot encoding

Fix example sequence length and remove incompatible build method

Add custom layers for model loading

Add BERT metagenome embedding extraction app