feat: add stepfun demo & update stepfun v2v python doc

Author: bestony

ai_agents/.env.example

@@ -151,4 +151,8 @@ GROQ_CLOUD_API_KEY=
 
 # Azure AI Foundry API Key
 AZURE_AI_FOUNDRY_BASE_URI=
-AZURE_AI_FOUNDRY_API_KEY=
+AZURE_AI_FOUNDRY_API_KEY=
+
+
+# Stepfun API Key
+STEPFUN_API_KEY=

ai_agents/agents/examples/stepfun-demo/manifest.json

@@ -0,0 +1,97 @@
+{
+  "type": "app",
+  "name": "stepfundemo",
+  "version": "0.1.0",
+  "dependencies": [
+    {
+      "type": "system",
+      "name": "ten_runtime_go",
+      "version": "0.8"
+    },
+    {
+      "type": "extension",
+      "name": "agora_rtc",
+      "version": "=0.12.0"
+    },
+    {
+      "type": "extension",
+      "name": "agora_sess_ctrl",
+      "version": "=0.4.4"
+    },
+    {
+      "type": "system",
+      "name": "azure_speech_sdk",
+      "version": "1.38.0"
+    },
+    {
+      "type": "system",
+      "name": "ten_ai_base",
+      "version": "0.4.1"
+    },
+    {
+      "type": "extension",
+      "name": "azure_tts",
+      "version": "=0.8.1"
+    },
+    {
+      "type": "extension",
+      "name": "dify_python",
+      "version": "=0.1.0"
+    },
+    {
+      "type": "extension",
+      "name": "gemini_v2v_python",
+      "version": "=0.1.0"
+    },
+    {
+      "type": "extension",
+      "name": "openai_chatgpt_python",
+      "version": "=0.1.0"
+    },
+    {
+      "type": "extension",
+      "name": "bingsearch_tool_python",
+      "version": "=0.1.0"
+    },
+    {
+      "type": "extension",
+      "name": "vision_tool_python",
+      "version": "=0.1.0"
+    },
+    {
+      "type": "extension",
+      "name": "weatherapi_tool_python",
+      "version": "=0.1.0"
+    },
+    {
+      "type": "extension",
+      "name": "interrupt_detector_python",
+      "version": "=0.1.0"
+    },
+    {
+      "type": "extension",
+      "name": "stepfun_v2v_python",
+      "version": "=0.1.0"
+    },
+    {
+      "type": "extension",
+      "name": "message_collector",
+      "version": "=0.1.0"
+    },
+    {
+      "type": "extension",
+      "name": "coze_python_async",
+      "version": "=0.1.0"
+    },
+    {
+      "type": "extension",
+      "name": "fish_audio_tts",
+      "version": "=0.1.0"
+    },
+    {
+      "type": "extension",
+      "name": "openai_image_generate_tool",
+      "version": "=0.1.0"
+    }
+  ]
+}