Initial commit: Meeting Room v0.1.0

Multi-agent discussion framework:
- Custom/AutoGen/CrewAI backends
- Multi-provider API (role→model binding)
- Tools system (files, web, commands)
- Markdown scenarios with YAML frontmatter
- Workspace init (meeting-room init)
- Session save (--save)

meeting_room/api_client.py

@@ -0,0 +1,96 @@
+"""Universal API client supporting multiple OpenAI-compatible providers."""
+
+import httpx
+import json
+
+
+PROVIDERS = {}
+
+
+def init_providers(config: dict):
+    global PROVIDERS
+    PROVIDERS = config.get("providers", {})
+
+
+def _get_client(provider_name: str) -> httpx.Client:
+    p = PROVIDERS.get(provider_name)
+    if not p:
+        raise ValueError(f"Unknown provider: {provider_name}")
+    return httpx.Client(
+        base_url=p["base_url"],
+        headers={"Authorization": f"Bearer {p['api_key']}"},
+        timeout=120.0,
+    )
+
+
+def chat(
+    provider: str,
+    model: str,
+    messages: list[dict],
+    temperature: float = 0.7,
+    tools: list[dict] | None = None,
+) -> dict:
+    client = _get_client(provider)
+    payload = {
+        "model": model,
+        "messages": messages,
+        "temperature": temperature,
+    }
+    if tools:
+        payload["tools"] = tools
+        payload["tool_choice"] = "auto"
+
+    resp = client.post("/chat/completions", json=payload)
+    resp.raise_for_status()
+    data = resp.json()
+    message = data["choices"][0]["message"]
+
+    result = {
+        "content": message.get("content") or "",
+        "tool_calls": None,
+    }
+
+    if message.get("tool_calls"):
+        result["tool_calls"] = []
+        for tc in message["tool_calls"]:
+            result["tool_calls"].append({
+                "id": tc["id"],
+                "name": tc["function"]["name"],
+                "arguments": tc["function"]["arguments"],
+            })
+
+    return result
+
+
+def chat_stream(
+    provider: str,
+    model: str,
+    messages: list[dict],
+    temperature: float = 0.7,
+) -> str:
+    client = _get_client(provider)
+    payload = {
+        "model": model,
+        "messages": messages,
+        "temperature": temperature,
+        "stream": True,
+    }
+    full_text = ""
+    with client.stream("POST", "/chat/completions", json=payload) as resp:
+        resp.raise_for_status()
+        for line in resp.iter_lines():
+            if not line or not line.startswith("data: "):
+                continue
+            data = line[6:]
+            if data == "[DONE]":
+                break
+            try:
+                chunk = json.loads(data)
+                delta = chunk["choices"][0]["delta"]
+                if "content" in delta and delta["content"]:
+                    print(delta["content"], end="", flush=True)
+                    full_text += delta["content"]
+            except (json.JSONDecodeError, KeyError, IndexError):
+                continue
+    print()
+    return full_text