Fix: start_training yield count (9), plt.close memory leak

Fix restart loop: variant=secondary, theme back in Blocks()

Stop button: write flag file, wait 120s for clean save, fallback terminate

Add Stop button + save plots on stop; fix _refresh unpack bug; fix theme deprecation

Add format/difficulty/ep-length live panels + full metrics in JSON

Add live loss curve panel + wire into dashboard

UI: generations default 16→32, max 16→64

Update UI defaults: epochs 3→6 (max 10), generations 8→16 (max 32)

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Upload app.py with huggingface_hub

Upload app.py with huggingface_hub

Upload app.py with huggingface_hub