Add word-guessing game environment

[yyu22]

• Add word-guessing game as a NemoGym resource server
• Implements submit_guess, check_word_validity, and get_game_state tool endpoints
• Dense reward shaping with penalties for ignoring feedback, using eliminated letters, repeating guesses

Reward Structure

• Win: 2.0 - 0.2 * (turns - 1), capped at turn-3 level for lucky turn-1 wins. Floor of 0.1 (wins always positive)
• Loss / Incomplete: 0.0
• Penalties (accumulate, only affect win reward): repeated guess (-0.2), ignore known greens (-0.05/position), ignore yellows (-0.03), use eliminated letters (-0.02/letter), invalid word (-0.02), wrong length
  (-0.02)

Data Generation

cd resources_servers/wordle
python generate_data.py --output_dir data/

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[cmunley1]

two comments

maybe we could consolidate
wordle_logic.py
wordle_words.py
wordle_words_data.py

into 1 or 2 file? I wonder how messy app.py would get if you throw it all in there (minus the words list)

Also, maybe the words dataset can be uploaded to hf instead of stored in a file here?

I dont think either of these is necessary but might be nice to have