v0.3.1 – DouDou27 (27.5M checkpoint) + Annonces bid eval

What's new

• DouDou27: new DMC card play agent trained for 27.5M steps with better bidding system, see below (replaces DouDou35)
• Annonces tab: bid evaluation now works (NN bid model bundled as release asset)
• Annonces tab hand preview: selected cards shown at full game size below the palette
• Fix bid model discovery to also check ./models/ relative to working directory

Model assets

• dmc_27.bin — DouDou27 card play model (9.8 MB)
• bid_nn_final.bin — Le Bide à Dédé NN bidder (421 KB)