更新 README.md

.gitignore

@@ -1,10 +0,0 @@
-# Python 字节码缓存
-__pycache__/
-*.py[cod]
-*$py.class
-
-# 项目特定的存储/缓存文件夹
-.storage/
-
-# 环境变量文件（通常包含敏感信息）
-.env

.python-version

@@ -1 +0,0 @@
-3.12

README.md

@@ -63,7 +63,6 @@ uv sync
 ## 🚀 快速开始
 
 ```bash
-cd wd666
 uv run streamlit run app.py
 ```
 

agents/base_agent.py

@@ -19,18 +19,16 @@ class AgentMessage:
 class BaseAgent:
     """Agent 基类"""
     
-    def __init__(self, agent_id: str, llm_client, language: str = "Chinese"):
+    def __init__(self, agent_id: str, llm_client):
         """
         初始化 Agent
         
         Args:
             agent_id: Agent 标识符 (如 'ceo', 'cto')
             llm_client: LLM 客户端实例
-            language: 输出语言
         """
         self.agent_id = agent_id
         self.llm_client = llm_client
-        self.language = language
         
         profile = get_agent_profile(agent_id)
         if not profile:
@@ -40,18 +38,11 @@ class BaseAgent:
         self.emoji = profile["emoji"]
         self.perspective = profile["perspective"]
         self.focus_areas = profile["focus_areas"]
-        self.system_prompt = f"{profile['system_prompt']}\n\nIMPORTANT: You MUST output your response in {self.language}."
+        self.system_prompt = profile["system_prompt"]
         
         # 存储对话历史
         self.conversation_history = []
     
-    @property
-    def model_name(self) -> str:
-        """获取当前使用的模型名称"""
-        if hasattr(self.llm_client, "model"):
-            return self.llm_client.model
-        return "Unknown Model"
-    
     def generate_response(
         self,
         topic: str,

agents/research_agent.py

@@ -1,56 +1,39 @@
-from typing import Generator
+from typing import Generator, List, Dict
 from utils.llm_client import LLMClient
 import config
 
 class ResearchAgent:
     """研究模式专用 Agent"""
     
-    def __init__(self, role: str, llm_client: LLMClient, name: str = None, language: str = "Chinese"):
+    def __init__(self, role: str, llm_client: LLMClient):
         self.role = role
         self.llm_client = llm_client
         self.role_config = config.RESEARCH_MODEL_ROLES.get(role, {})
-        self.name = name if name else self.role_config.get("name", role.capitalize())
-        self.language = language
-        
-    @property
-    def model_name(self) -> str:
-        return self.llm_client.model
+        self.name = self.role_config.get("name", role.capitalize())
         
     def _get_system_prompt(self, context: str = "") -> str:
-        base_prompt = ""
-        if self.role == "council_member":
-            base_prompt = f"""You are {self.name}, a member of the Multi-Model Decision Council.
-Your goal is to participate in a round-table discussion to solve the user's problem.
-Be conversational, insightful, and constructive.
-Build upon others' ideas or respectfully disagree with valid reasoning.
+        if self.role == "planner":
+            return f"""You are a Senior Research Planner.
+Your goal is to break down a complex user topic into a structured research plan.
+You must create a clear, step-by-step plan that covers different angles of the topic.
+Format your output as a Markdown list of steps.
 Context: {context}"""
         
-        elif self.role == "expert_a":
-            base_prompt = f"""You are Expert A, a Senior Analyst.
-You are participating in a round-table discussion.
-Your goal is to analyze the topic and propose solutions.
-Be conversational, direct, and responsive to other experts. 
-Do not write a full final report; focus on the current discussion turn.
+        elif self.role == "researcher":
+            return f"""You are a Deep Researcher.
+Your goal is to execute a specific research step and provide detailed, in-depth analysis.
+Use your vast knowledge to provide specific facts, figures, and logical reasoning.
+Do not be superficial. Go deep.
 Context: {context}"""
         
-        elif self.role == "expert_b":
-            base_prompt = f"""You are Expert B, a Critical Reviewer.
-You are participating in a round-table discussion.
-Your goal is to critique Expert A's points and offer alternative perspectives.
-Be conversational and constructive. Challenge assumptions directly.
+        elif self.role == "writer":
+            return f"""You are a Senior Report Writer.
+Your goal is to synthesize multiple research findings into a cohesive, high-quality report.
+The report should be well-structured, easy to read, and provide actionable insights.
 Context: {context}"""
         
-        elif self.role == "expert_c":
-            base_prompt = f"""You are Expert C, a Senior Strategist and Visual Thinker.
-Your goal is to synthesize the final output. 
-Combine the structural strength of Expert A with the critical insights of Expert B.
-Produce a final, polished, comprehensive plan or report.
-CRITICAL: You MUST include a Mermaid.js diagram (using ```mermaid code block) to visualize the timeline, process, or architecture."""
-        
         else:
-            base_prompt = "You are a helpful assistant."
-            
-        return f"{base_prompt}\n\nIMPORTANT: You MUST output your response in {self.language}."
+            return "You are a helpful assistant."
 
     def generate(self, prompt: str, context: str = "") -> Generator[str, None, None]:
         """Generate response stream"""

config.py

@@ -9,110 +9,35 @@ load_dotenv()
 # API 配置
 ANTHROPIC_API_KEY = os.getenv("ANTHROPIC_API_KEY", "")
 OPENAI_API_KEY = os.getenv("OPENAI_API_KEY", "")
-AIHUBMIX_API_KEY = os.getenv("AIHUBMIX_API_KEY", "")
-DEEPSEEK_API_KEY = os.getenv("DEEPSEEK_API_KEY", "")
-SILICONFLOW_API_KEY = os.getenv("SILICONFLOW_API_KEY", "")
+AIHUBMIX_API_KEY = os.getenv("AIHUBMIX_API_KEY", "sk-yd8Tik0nFW5emKYcBdFc433b7c8b4dC182848f76819bBe73")
 
-# LLM Providers Configuration
-LLM_PROVIDERS = {
-    "AIHubMix": {
-        "base_url": "https://aihubmix.com/v1",
-        "api_key_var": "AIHUBMIX_API_KEY",
-        "default_model": "gpt-4o"
-    },
-    "DeepSeek": {
-        "base_url": "https://api.deepseek.com",
-        "api_key_var": "DEEPSEEK_API_KEY",
-        "default_model": "deepseek-chat"
-    },
-    "SiliconFlow": {
-        "base_url": "https://api.siliconflow.cn/v1",
-        "api_key_var": "SILICONFLOW_API_KEY",
-        "default_model": "deepseek-ai/DeepSeek-V3" # SiliconFlow often uses full path
-    },
-    "OpenAI": {
-        "base_url": "https://api.openai.com/v1",
-        "api_key_var": "OPENAI_API_KEY",
-        "default_model": "gpt-4o"
-    },
-    "Custom": {
-        "base_url": "http://localhost:8000/v1",
-        "api_key_var": "CUSTOM_API_KEY",
-        "default_model": "local-model"
-    }
-}
-
-# AIHubMix 配置 (Legacy, keeping for backward compatibility if needed, but main logic will use LLM_PROVIDERS)
+# AIHubMix 配置
 AIHUBMIX_BASE_URL = "https://aihubmix.com/v1"
 
 # 模型配置
 DEFAULT_MODEL = "gpt-4o"  # AIHubMix 支持的模型
 LLM_PROVIDER = "aihubmix"  # 默认使用 AIHubMix
 
-# 支持的模型列表
-AVAILABLE_MODELS = {
-    # OpenAI
-    "gpt-4o": "GPT-4o (OpenAI)",
-    "gpt-4o-mini": "GPT-4o Mini (OpenAI)",
-    "gpt-4-turbo": "GPT-4 Turbo (OpenAI)",
-    
-    # Anthropic
-    "claude-3-5-sonnet-20241022": "Claude 3.5 Sonnet (Anthropic)",
-    "claude-3-opus-20240229": "Claude 3 Opus (Anthropic)",
-    "claude-3-haiku-20240307": "Claude 3 Haiku (Anthropic)",
-    
-    # Google
-    "gemini-1.5-pro": "Gemini 1.5 Pro (Google)",
-    "gemini-1.5-flash": "Gemini 1.5 Flash (Google)",
-    "gemini-2.0-flash-exp": "Gemini 2.0 Flash Exp (Google)",
-    
-    # DeepSeek (官方 API: https://api.deepseek.com)
-    "deepseek-chat": "DeepSeek V3 通用对话 (DeepSeek)",
-    "deepseek-reasoner": "DeepSeek R1 深度推理 (DeepSeek)",
-    "deepseek-coder": "DeepSeek Coder 代码模型 (DeepSeek)",
-    
-    # Meta
-    "llama-3.3-70b-instruct": "Llama 3.3 70B (Meta)",
-    "llama-3.1-405b-instruct": "Llama 3.1 405B (Meta)",
-    
-    # Alibaba
-    "qwen-2.5-72b-instruct": "Qwen 2.5 72B (Alibaba)",
-    "qwen-plus": "Qwen Plus (Alibaba)",
-    "qwen-turbo": "Qwen Turbo (Alibaba)",
-    
-    # Mistral
-    "mistral-large-latest": "Mistral Large (Mistral)",
-    
-    # Perplexity
-    "llama-3.1-sonar-huge-128k-online": "Sonar Huge Online (Perplexity)",
-}
-
 # 辩论配置
 MAX_DEBATE_ROUNDS = 3  # 最大辩论轮数
 MAX_AGENTS = 6  # 最大参与 Agent 数量
 
-# 支持的输出语言
-SUPPORTED_LANGUAGES = ["Chinese", "English", "Japanese", "Spanish", "French", "German"]
-
-# 生成配置
-MAX_OUTPUT_TOKENS = 300  # 限制单次回复长度，保持精简
-
 # 研究模式模型角色配置
 RESEARCH_MODEL_ROLES = {
-    "expert_a": {
-        "name": "Expert A (Analyst)",
+    "planner": {
+        "name": "Planner",
         "default_model": "gpt-4o",
-        "description": "负责初步分析，提出核心观点和方案"
+        "description": "负责拆解问题，制定研究计划"
     },
-    "expert_b": {
-        "name": "Expert B (Critique)",
+    "researcher": {
+        "name": "Researcher",
         "default_model": "gemini-1.5-pro", 
-        "description": "负责批判性分析，指出潜在问题和漏洞"
+        "description": "负责执行具体的研究步骤，深度分析"
     },
-    "expert_c": {
-        "name": "Expert C (Synthesizer)",
+    "writer": {
+        "name": "Writer",
         "default_model": "claude-3-5-sonnet-20241022",
-        "description": "负责综合各方观点，生成最终决策方案"
+        "description": "负责汇总信息，撰写最终报告"
     }
 }
 

main.py

@@ -1,6 +0,0 @@
-def main():
-    print("Hello from multi-agent!")
-
-
-if __name__ == "__main__":
-    main()

orchestrator/debate_manager.py

@@ -17,8 +17,6 @@ class DebateConfig:
     context: str = ""
     agent_ids: List[str] = None
     max_rounds: int = 2
-    agent_clients: dict = None # Map[agent_id, LLMClient]
-    language: str = "Chinese"
     
 
 @dataclass  
@@ -60,12 +58,7 @@ class DebateManager:
         
         # 创建参与的 Agent
         for agent_id in debate_config.agent_ids:
-            # Check if specific client is provided in config, else use default
-            client = self.llm_client
-            if hasattr(debate_config, 'agent_clients') and debate_config.agent_clients and agent_id in debate_config.agent_clients:
-                 client = debate_config.agent_clients[agent_id]
-            
-            agent = BaseAgent(agent_id, client, language=debate_config.language)
+            agent = BaseAgent(agent_id, self.llm_client)
             self.agents.append(agent)
     
     def run_debate_stream(
@@ -113,7 +106,6 @@ class DebateManager:
                     "agent_id": agent.agent_id,
                     "agent_name": agent.name,
                     "emoji": agent.emoji,
-                    "model_name": agent.model_name,
                     "round": round_num
                 }
                 

orchestrator/research_manager.py

@@ -8,92 +8,44 @@ import config
 class ResearchConfig:
     topic: str
     context: str = ""
-    # Dynamic list of experts: [{"name": "Expert 1", "model": "gpt-4o", "role": "analyst"}, ...]
-    experts: List[Dict[str, str]] = None 
-    language: str = "Chinese"
+    planner_model: str = "gpt-4o"
+    researcher_model: str = "gemini-1.5-pro"
+    writer_model: str = "claude-3-5-sonnet-20241022"
 
 class ResearchManager:
-    """Manages the Multi-Model Council workflow"""
+    """Manages the Deep Research workflow"""
     
     def __init__(self, api_key: str, base_url: str = None, provider: str = "aihubmix"):
         self.api_key = api_key
         self.base_url = base_url
         self.provider = provider
-        self.agents = []
+        self.agents = {}
         
     def _get_client(self, model: str) -> LLMClient:
         return LLMClient(
-            provider=self.provider, # Configured to respect provider or default to aihubmix logic inside client
+            provider=self.provider,
             api_key=self.api_key,
             base_url=self.base_url,
             model=model
         )
 
     def create_agents(self, config: ResearchConfig):
-        """Initialize agents with specific models from config"""
-        self.agents = []
-        if config.experts:
-            for idx, expert_conf in enumerate(config.experts):
-                role_type = "council_member"
-                agent = ResearchAgent(
-                    role=role_type, 
-                    llm_client=self._get_client(expert_conf["model"]),
-                    name=expert_conf.get("name", f"Expert {idx+1}"),
-                    language=config.language
-                )
-                self.agents.append(agent)
+        """Initialize agents with specific models"""
+        self.agents["planner"] = ResearchAgent("planner", self._get_client(config.planner_model))
+        self.agents["researcher"] = ResearchAgent("researcher", self._get_client(config.researcher_model))
+        self.agents["writer"] = ResearchAgent("writer", self._get_client(config.writer_model))
 
-    def collaborate(self, topic: str, context: str, max_rounds: int = 3) -> Generator[Dict[str, str], None, None]:
-        """
-        Execute the collaborative research process with multi-round discussion:
-        1. Conversation Loop (All Experts Round Robin)
-        2. Final Synthesis (Last Expert)
-        """
+    def generate_plan(self, topic: str, context: str) -> Generator[str, None, None]:
+        """Step 1: Generate Research Plan"""
+        prompt = f"Please create a comprehensive research plan for the topic: '{topic}'.\nBreak it down into 3-5 distinct, actionable steps."
+        yield from self.agents["planner"].generate(prompt, context)
 
-        conversation_history = []
-        discussion_context = f"Topic: '{topic}'\nBackground Context: {context}\n\n"
+    def execute_step(self, step: str, previous_findings: str) -> Generator[str, None, None]:
+        """Step 2: Execute a single research step"""
+        prompt = f"Execute this research step: '{step}'.\nPrevious findings: {previous_findings}"
+        yield from self.agents["researcher"].generate(prompt)
 
-        # Round-Robin Discussion
-        for round_num in range(1, max_rounds + 1):
-            for agent in self.agents:
-                yield {"type": "step_start", "step": f"Round {round_num}: {agent.name}", "agent": agent.name, "model": agent.model_name}
-                
-                # Construct prompt
-                if round_num == 1 and not conversation_history:
-                    prompt = f"You are {agent.name}. You are starting the discussion on '{topic}'. Provide your initial analysis and key points. Be conversational but substantive."
-                else:
-                    prompt = f"You are {agent.name}. Review the discussion so far. Respond to previous points. Defend your views or refine them. Keep the discussion moving towards a solution.\n\nDiscussion History:\n{_format_history(conversation_history)}"
-                
-                response = ""
-                for chunk in agent.generate(prompt, context=discussion_context):
-                    response += chunk
-                    yield {"type": "content", "content": chunk}
-                
-                conversation_history.append({"agent": agent.name, "content": response})
-                yield {"type": "step_end", "output": response}
-
-        # Final Synthesis by the LAST agent (or a specific designated one)
-        synthesizer = self.agents[-1]
-        yield {"type": "step_start", "step": f"Final Synthesis ({synthesizer.name})", "agent": synthesizer.name, "model": synthesizer.model_name}
-        
-        prompt_syn = f"""Synthesize the entire discussion into a final comprehensive plan for '{topic}'.
-        
-Discussion History:
-{_format_history(conversation_history)}
-
-IMPORTANT: 
-1. Reconcile the different viewpoints from all experts.
-2. Provide a concrete action plan.
-3. You MUST include a Mermaid.js diagram (using ```mermaid code block) to visualize the roadmap or process."""
-
-        findings_syn = ""
-        for chunk in synthesizer.generate(prompt_syn, context=discussion_context):
-            findings_syn += chunk
-            yield {"type": "content", "content": chunk}
-        yield {"type": "step_end", "output": findings_syn}
-
-def _format_history(history: List[Dict[str, str]]) -> str:
-    formatted = ""
-    for turn in history:
-        formatted += f"[{turn['agent']}]: {turn['content']}\n\n"
-    return formatted
+    def generate_report(self, topic: str, all_findings: str) -> Generator[str, None, None]:
+        """Step 3: Generate Final Report"""
+        prompt = f"Write a final comprehensive report on '{topic}' based on these findings:\n{all_findings}"
+        yield from self.agents["writer"].generate(prompt)

pyproject.toml

@@ -1,13 +0,0 @@
-[project]
-name = "multi-agent"
-version = "0.1.0"
-description = "Add your description here"
-readme = "README.md"
-requires-python = ">=3.12"
-dependencies = [
-    "anthropic>=0.75.0",
-    "openai>=2.14.0",
-    "pydantic>=2.12.5",
-    "python-dotenv>=1.2.1",
-    "streamlit>=1.52.2",
-]

utils/auto_agent_generator.py

@@ -1,108 +0,0 @@
-"""
-Auto Agent Generator - 根据主题自动生成专家配置
-Uses LLM to analyze the topic and suggest appropriate expert agents.
-"""
-import json
-import re
-from typing import List, Dict
-from utils.llm_client import LLMClient
-
-
-EXPERT_GENERATION_PROMPT = """You are an expert team composition advisor. Given a research/decision topic, you need to suggest the most appropriate team of experts to analyze it.
-
-Instructions:
-1. Analyze the topic carefully to understand its domain and key aspects
-2. Generate {num_experts} distinct expert roles that would provide the most valuable perspectives
-3. Each expert should have a unique focus area relevant to the topic
-4. The LAST expert should always be a "Synthesizer" role who can integrate all perspectives
-
-Output Format (MUST be valid JSON array):
-[
-  {{"name": "Expert Name", "perspective": "Brief description of their viewpoint", "focus": "Key areas they analyze"}},
-  ...
-]
-
-Examples of good expert names based on topic:
-- For "Should we launch an e-commerce platform?": "市场渠道分析师", "电商运营专家", "供应链顾问", "数字化转型综合师"
-- For "Career transition to AI field": "职业发展顾问", "AI行业专家", "技能评估分析师", "综合规划师"
-
-IMPORTANT:
-- Use {language} for all names and descriptions
-- Make names specific to the topic, not generic like "Expert 1"
-- The last expert MUST be a synthesizer/integrator type
-
-Topic: {topic}
-
-Generate exactly {num_experts} experts as a JSON array:"""
-
-
-def generate_experts_for_topic(
-    topic: str, 
-    num_experts: int, 
-    llm_client: LLMClient,
-    language: str = "Chinese"
-) -> List[Dict[str, str]]:
-    """
-    Use LLM to generate appropriate expert configurations based on the topic.
-    
-    Args:
-        topic: The research/decision topic
-        num_experts: Number of experts to generate (2-5)
-        llm_client: LLM client instance for API calls
-        language: Output language (Chinese/English)
-        
-    Returns:
-        List of expert dicts: [{"name": "...", "perspective": "...", "focus": "..."}, ...]
-    """
-    if not topic.strip():
-        return []
-    
-    prompt = EXPERT_GENERATION_PROMPT.format(
-        topic=topic,
-        num_experts=num_experts,
-        language=language
-    )
-    
-    try:
-        response = llm_client.chat(
-            system_prompt="You are a helpful assistant that generates JSON output only. No markdown, no explanation.",
-            user_prompt=prompt,
-            max_tokens=800
-        )
-        
-        # Extract JSON from response (handle potential markdown wrapping)
-        json_match = re.search(r'\[[\s\S]*\]', response)
-        if json_match:
-            experts = json.loads(json_match.group())
-            # Validate structure
-            if isinstance(experts, list) and len(experts) >= 1:
-                validated = []
-                for exp in experts[:num_experts]:
-                    if isinstance(exp, dict) and "name" in exp:
-                        validated.append({
-                            "name": exp.get("name", "Expert"),
-                            "perspective": exp.get("perspective", ""),
-                            "focus": exp.get("focus", "")
-                        })
-                return validated
-    except (json.JSONDecodeError, Exception) as e:
-        print(f"[AutoAgentGenerator] Error parsing LLM response: {e}")
-    
-    # Fallback: return generic experts
-    fallback = []
-    for i in range(num_experts):
-        if i == num_experts - 1:
-            fallback.append({"name": f"综合分析师", "perspective": "整合视角", "focus": "综合决策"})
-        else:
-            fallback.append({"name": f"专家 {i+1}", "perspective": "分析视角", "focus": "专业分析"})
-    return fallback
-
-
-def get_default_model_for_expert(expert_index: int, total_experts: int, available_models: list) -> str:
-    """
-    Assign a default model to an expert based on their position.
-    Spreads experts across available models for diversity.
-    """
-    if not available_models:
-        return "gpt-4o"
-    return available_models[expert_index % len(available_models)]

utils/llm_client.py

@@ -5,8 +5,6 @@ from typing import Generator
 import os
 
 
-import config
-
 class LLMClient:
     """LLM API 统一客户端"""
     
@@ -38,25 +36,24 @@ class LLMClient:
             self.client = OpenAI(api_key=api_key)
             self.model = model or "gpt-4o"
             
-        elif self.provider in ["aihubmix", "deepseek", "siliconflow", "custom"]:
-            # OpenAI 兼容接口 Providers
+        elif self.provider == "aihubmix":
+            # AIHubMix 兼容 OpenAI API 格式
             from openai import OpenAI
-            
-            default_urls = {
-                "aihubmix": "https://aihubmix.com/v1",
-                "deepseek": "https://api.deepseek.com",
-                "siliconflow": "https://api.siliconflow.cn/v1",
-                "custom": "http://localhost:8000/v1"
-            }
-            
-            final_base_url = base_url or default_urls.get(self.provider)
-            
             self.client = OpenAI(
                 api_key=api_key,
-                base_url=final_base_url
+                base_url=base_url or "https://aihubmix.com/v1"
             )
             self.model = model or "gpt-4o"
             
+        elif self.provider == "custom":
+            # 自定义 OpenAI 兼容接口（vLLM、Ollama、TGI 等）
+            from openai import OpenAI
+            self.client = OpenAI(
+                api_key=api_key or "not-needed",
+                base_url=base_url or "http://localhost:8000/v1"
+            )
+            self.model = model or "local-model"
+            
         else:
             raise ValueError(f"不支持的 provider: {self.provider}")
     
@@ -64,7 +61,7 @@ class LLMClient:
         self,
         system_prompt: str,
         user_prompt: str,
-        max_tokens: int = config.MAX_OUTPUT_TOKENS
+        max_tokens: int = 1024
     ) -> Generator[str, None, None]:
         """
         流式对话

utils/storage.py

@@ -1,184 +0,0 @@
-"""
-Storage Manager - Handle local persistence of configuration, history/reports, and assets.
-"""
-import os
-import json
-import time
-from typing import List, Dict, Any
-from pathlib import Path
-
-# Constants
-STORAGE_DIR = ".storage"
-CONFIG_FILE = "config.json"
-HISTORY_DIR = "history"
-ASSETS_DIR = "assets"
-
-class StorageManager:
-    def __init__(self):
-        self.root_dir = Path(STORAGE_DIR)
-        self.config_path = self.root_dir / CONFIG_FILE
-        self.history_dir = self.root_dir / HISTORY_DIR
-        self.assets_dir = self.root_dir / ASSETS_DIR
-        
-        # Ensure directories exist
-        self.root_dir.mkdir(exist_ok=True)
-        self.history_dir.mkdir(exist_ok=True)
-        self.assets_dir.mkdir(exist_ok=True)
-        
-    def save_config(self, config_data: Dict[str, Any]):
-        """Save UI configuration to file"""
-        try:
-            with open(self.config_path, 'w', encoding='utf-8') as f:
-                json.dump(config_data, f, indent=2, ensure_ascii=False)
-        except Exception as e:
-            print(f"Error saving config: {e}")
-
-    def load_config(self) -> Dict[str, Any]:
-        """Load UI configuration from file"""
-        if not self.config_path.exists():
-            return {}
-        try:
-            with open(self.config_path, 'r', encoding='utf-8') as f:
-                return json.load(f)
-        except Exception as e:
-            print(f"Error loading config: {e}")
-            return {}
-
-    def save_asset(self, uploaded_file) -> str:
-        """Save an uploaded file (e.g., background image) into assets directory.
-
-        Args:
-            uploaded_file: a file-like object (Streamlit UploadedFile) or bytes-like
-
-        Returns:
-            The saved file path as string, or None on failure.
-        """
-        try:
-            # Determine filename
-            if hasattr(uploaded_file, 'name'):
-                filename = uploaded_file.name
-            else:
-                filename = f"asset_{int(time.time())}"
-
-            # sanitize
-            safe_name = "".join([c for c in filename if c.isalnum() or c in (' ', '.', '_', '-')]).strip().replace(' ', '_')
-            dest = self.assets_dir / f"{int(time.time())}_{safe_name}"
-
-            # Write bytes
-            with open(dest, 'wb') as out:
-                # Streamlit UploadedFile has getbuffer()
-                if hasattr(uploaded_file, 'getbuffer'):
-                    out.write(uploaded_file.getbuffer())
-                else:
-                    # try reading
-                    data = uploaded_file.read()
-                    if isinstance(data, str):
-                        data = data.encode('utf-8')
-                    out.write(data)
-
-            return str(dest)
-        except Exception as e:
-            print(f"Error saving asset: {e}")
-            return None
-
-    def save_history(self, session_type: str, topic: str, content: str, metadata: Dict[str, Any] = None):
-        """
-        Save a session report/history
-        
-        Args:
-            session_type: 'council' or 'debate'
-            topic: The main topic
-            content: The full markdown report or content
-            metadata: Additional info (model used, date, etc)
-        """
-        timestamp = int(time.time())
-        date_str = time.strftime("%Y-%m-%d %H:%M:%S")
-        
-        # Create a safe filename
-        safe_topic = "".join([c for c in topic[:20] if c.isalnum() or c in (' ', '_', '-')]).strip().replace(' ', '_')
-        filename = f"{timestamp}_{session_type}_{safe_topic}.json"
-        
-        data = {
-            "id": str(timestamp),
-            "timestamp": timestamp,
-            "date": date_str,
-            "type": session_type,
-            "topic": topic,
-            "content": content,
-            "metadata": metadata or {}
-        }
-        
-        try:
-            with open(self.history_dir / filename, 'w', encoding='utf-8') as f:
-                json.dump(data, f, indent=2, ensure_ascii=False)
-            return True
-        except Exception as e:
-            print(f"Error saving history: {e}")
-            return False
-
-    def list_history(self) -> List[Dict[str, Any]]:
-        """List all history items (metadata only)"""
-        items = []
-        if not self.history_dir.exists():
-            return []
-            
-        for file in self.history_dir.glob("*.json"):
-            try:
-                with open(file, 'r', encoding='utf-8') as f:
-                    data = json.load(f)
-                    # Return summary info
-                    items.append({
-                        "id": data.get("id"),
-                        "date": data.get("date"),
-                        "type": data.get("type"),
-                        "topic": data.get("topic"),
-                        "filename": file.name
-                    })
-            except Exception:
-                continue
-                
-        # Sort by timestamp desc
-        return sorted(items, key=lambda x: x.get("date", ""), reverse=True)
-
-    def load_history_item(self, filename: str) -> Dict[str, Any]:
-        """Load full content of a history item"""
-        path = self.history_dir / filename
-        if not path.exists():
-            return None
-        try:
-            with open(path, 'r', encoding='utf-8') as f:
-                return json.load(f)
-        except Exception:
-            return None
-
-    # ==================== Session Cache (Resume Functionality) ====================
-    def save_session_state(self, key: str, data: Dict[str, Any]):
-        """Save temporary session state for recovery"""
-        try:
-            # We use a dedicated cache file per key
-            cache_file = self.root_dir / f"{key}_cache.json"
-            data["_timestamp"] = int(time.time())
-            with open(cache_file, 'w', encoding='utf-8') as f:
-                json.dump(data, f, indent=2, ensure_ascii=False)
-        except Exception as e:
-            print(f"Error saving session cache: {e}")
-
-    def load_session_state(self, key: str) -> Dict[str, Any]:
-        """Load temporary session state"""
-        cache_file = self.root_dir / f"{key}_cache.json"
-        if not cache_file.exists():
-            return None
-        try:
-            with open(cache_file, 'r', encoding='utf-8') as f:
-                return json.load(f)
-        except Exception:
-            return None
-
-    def clear_session_state(self, key: str):
-        """Clear temporary session state"""
-        cache_file = self.root_dir / f"{key}_cache.json"
-        if cache_file.exists():
-            try:
-                os.remove(cache_file)
-            except Exception:
-                pass