refactor learn and roles, add mock config

config/config2.yaml.mock

@@ -0,0 +1,55 @@
+llm:
+  gpt3t:
+    base_url: "YOUR_BASE_URL"
+    api_key: "YOUR_API_KEY"
+    model: "gpt-3.5-turbo-1106"  # or gpt-4-1106-preview
+  azure-gpt3t:
+    api_type: "azure"
+    base_url: "YOUR_BASE_URL"
+    api_key: "YOUR_API_KEY"
+    model: "gpt35turbo"
+
+search:
+  serpapi:
+    api_type: "serpapi"
+    api_key: "YOUR_API_KEY"
+  google:
+    api_type: "google"
+    api_key: "YOUR_API_KEY"
+    cse_id: "YOUR_CSE_ID"
+  serper:
+    api_type: "serper"
+    api_key: "YOUR_API_KEY"
+
+mermaid:
+  pyppeteer:
+    engine: "pyppeteer"
+    path: "/Applications/Google Chrome.app"
+
+proxy: "YOUR_PROXY"
+
+redis:
+  host: "YOUR_HOST"
+  port: 32582
+  password: "YOUR_PASSWORD"
+  db: "0"
+
+s3:
+  access_key: "YOUR_ACCESS_KEY"
+  secret_key: "YOUR_SECRET_KEY
+  endpoint: "YOUR_ENDPOINT"
+  secure: false
+  bucket: "test"
+
+
+AZURE_TTS_SUBSCRIPTION_KEY: "YOUR_SUBSCRIPTION_KEY"
+AZURE_TTS_REGION: "eastus"
+
+IFLYTEK_APP_ID: "YOUR_APP_ID"
+IFLYTEK_API_KEY: "YOUR_API_KEY"
+IFLYTEK_API_SECRET: "YOUR_API_SECRET"
+
+METAGPT_TEXT_TO_IMAGE_MODEL_URL: "YOUR_MODEL_URL"
+
+PYPPETEER_EXECUTABLE_PATH: "/Applications/Google Chrome.app"
+