contain minor bugs, will fix in future iterations

Fixes several bugs preventing custom models (via custom/model@url format) from working:

  - Fix parameter name in generate.py: api_base → base_url (line 257)
  - Fix hardcoded "gpt-4" evaluator models in server.py (lines 309, 401)
    Now uses model_dict.get("evaluator", model_dict["env"])
  - Add markdown code block stripping in PydanticOutputParser
    Many local LLMs wrap JSON in ```json...```, parser now handles this
  - Fix format_bad_output to support custom models
    Passes base_url/api_key through error recovery path
    Conditionally uses response_format (custom servers may not support it)

Merge branch 'fix/custom-model-support' into feature/social-game-support

…ility issues in the game

Refactor SocialDeductionGame for real-time history and cleaner prompts

- ParallelSotopiaEnv: Added `include_turn_marker` flag to control environment turn messages.
- SocialDeductionGame:
    - Disabled environment turn markers to avoid duplication.
    - Implemented real-time history appending via `recv_message` override and `agent_message_buffer`.
    - Populated `action_instruction` in `Observation` for dynamic prompt instructions.
- Observation: Added `action_instruction` field.
- generate.py: Added `fill_template` helper for partial string formatting.
- LLMAgent: Updated `aact` to use `fill_template` to inject `action_instructions` into `custom_template`.
- Werewolves: Updated config description to populate `{agent_names}` dynamically.

next step, change script_like to false, and fix the rest errors that may cause

…_Sell_custom_models.py

… server

previous commit reverted too much..

…ogging