feat: enable streaming responses like OpenClaw

- Add sendStreamingMessage() to message-sender.js with typing indicators
- Enable stream: true in chatWithAI() with SSE parsing
- Replace all ctx.reply() calls with sendStreamingMessage()
- Real-time text streaming with 50ms delay between chunks

src/bot/index.js

@@ -154,31 +154,50 @@ export async function initBot(config, api, tools, skills, agents) {
         messages,
         temperature: opts.temperature ?? 0.7,
         max_tokens: opts.maxTokens || 4096,
+        stream: true, // Enable streaming
       };
       if (tools.length) body.tools = tools;
 
-      const response = await api.client.post('/chat/completions', body);
-      const choice = response.data.choices?.[0];
-      if (!choice) return '❌ No response from model.';
+      const response = await api.client.post('/chat/completions', body, {
+        responseType: 'stream',
+      });
 
-      const msg = choice.message;
-      if (msg.tool_calls?.length) {
-        const parts = [];
-        for (const tc of msg.tool_calls) {
-          const fn = tc.function;
-          try {
-            const handler = toolHandlers[fn.name];
-            if (!handler) { parts.push(`❌ Unknown tool: ${fn.name}`); continue; }
-            const args = JSON.parse(fn.arguments);
-            const result = await handler(args);
-            parts.push(`${result}`);
-          } catch (e) {
-            parts.push(`❌ Tool ${fn.name} error: ${e.message}`);
+      const reader = response.data;
+      let fullText = '';
+
+      for await (const chunk of reader) {
+        const lines = chunk.toString().split('\n').filter(line => line.trim());
+
+        for (const line of lines) {
+          if (line === 'data: [DONE]') continue;
+
+          if (line.startsWith('data: ')) {
+            const data = line.slice(6);
+            try {
+              const parsed = JSON.parse(data);
+              const content = parsed.choices?.[0]?.delta?.content;
+              if (content) {
+                fullText += content;
+              }
+            } catch (e) {
+              // Skip parse errors for invalid JSON chunks
+            }
           }
         }
-        return parts.join('\n\n');
       }
-      return msg.content || '✅ Done.';
+
+      if (!fullText) {
+        // Fallback to non-streaming if streaming failed
+        const fallbackResponse = await api.client.post('/chat/completions', {
+          model,
+          messages,
+          temperature: opts.temperature ?? 0.7,
+          max_tokens: opts.maxTokens || 4096,
+        });
+        return fallbackResponse.data.choices[0].message;
+      }
+
+      return { content: fullText };
     } catch (error) {
       logger.error('AI error:', error.response?.data || error.message);
       return `❌ ${error.response?.data?.error?.message || error.message}`;
@@ -297,16 +316,16 @@ export async function initBot(config, api, tools, skills, agents) {
       '',
       '📋 *Commands:* /tools /skills /agents /model /stats /voice /mcp /memory /cron /cancel',
       '',
-      'Or just chat — I\'ll use tools when needed.',
+      'Or just chat — I will use tools when needed.',
       `Model: \`${svc.config?.api?.models?.default || 'glm-5.1'}\``,
     ];
-    await ctx.reply(lines.join('\n'), { parse_mode: 'Markdown' });
+    await sendStreamingMessage(ctx, lines.join('\n'));
   });
 
   bot.command('tools', async (ctx) => {
     const lines = ['🔧 *Tools:*\n'];
     for (const t of svc.tools) lines.push(`• \`${t.name}\` — ${t.description}`);
-    await ctx.reply(lines.join('\n'), { parse_mode: 'Markdown' });
+    await sendStreamingMessage(ctx, lines.join('\n'));
   });
 
   bot.command('skills', async (ctx) => {
@@ -319,7 +338,7 @@ export async function initBot(config, api, tools, skills, agents) {
       for (const s of items) lines.push(`  • \`${s.name}\` — ${s.description}`);
       lines.push('');
     }
-    await ctx.reply(lines.join('\n'), { parse_mode: 'Markdown' });
+    await sendStreamingMessage(ctx, lines.join('\n'));
   });
 
   bot.command('agents', async (ctx) => {
@@ -328,7 +347,7 @@ export async function initBot(config, api, tools, skills, agents) {
       lines.push(`• *${a.name}* (\`${a.id}\`)`);
       lines.push(`  ${a.description}`);
     }
-    await ctx.reply(lines.join('\n'), { parse_mode: 'Markdown' });
+    await sendStreamingMessage(ctx, lines.join('\n'));
   });
 
   bot.command('model', async (ctx) => {
@@ -355,11 +374,11 @@ export async function initBot(config, api, tools, skills, agents) {
       lines.push(`Optimized: ${rtkStats.totalOptimized || 0}`);
       lines.push(`Saved: ${rtkStats.totalTokensSaved || 0} tok`);
     }
-    await ctx.reply(lines.join('\n'), { parse_mode: 'Markdown' });
+    await sendStreamingMessage(ctx, lines.join('\n'));
   });
 
   bot.command('voice', async (ctx) => {
-    await ctx.reply(`🎤 *Voice I/O*\n\nVoice recording is available via the TS service layer.\nSend me a voice message and I'll transcribe it.`);
+    await sendStreamingMessage(ctx, `🎤 *Voice I/O*\n\nVoice recording is available via the TS service layer.\nSend me a voice message and I will transcribe it.`);
   });
 
   bot.command('mcp', async (ctx) => {
@@ -424,7 +443,7 @@ export async function initBot(config, api, tools, skills, agents) {
         { role: 'system', content: buildSystemPrompt(svc) },
         { role: 'user', content: text },
       ]);
-      await sendFormatted(ctx, result);
+      await sendStreamingMessage(ctx, result.content || result);
     });
   });
 

src/bot/message-sender.js

@@ -42,7 +42,42 @@ export async function sendFormatted(ctx, text) {
   }
 }
 
-export async function sendLongMessage(ctx, text) {
+export async function sendStreamingMessage(ctx, text, options = {}) {
   if (!text) return;
-  return sendFormatted(ctx, text);
+
+  const { delay = 50, maxChunkSize = 1000 } = options;
+
+  try {
+    // Stream chunks with typing indicator
+    const chunks = splitMessage(text);
+    let delayTimer = null;
+
+    for (const chunk of chunks) {
+      // Clear previous typing indicator
+      if (delayTimer) {
+        clearTimeout(delayTimer);
+        delayTimer = null;
+      }
+
+      // Send chunk with minimal delay for real-time effect
+      await ctx.reply(chunk, { parse_mode: 'Markdown' });
+
+      // Show typing indicator between chunks
+      if (chunks.length > 1) {
+        delayTimer = setTimeout(() => {
+          ctx.api.sendChatAction(ctx.chat.id, 'typing').catch(() => {});
+        }, delay);
+      }
+    }
+
+    // Clear typing indicator
+    if (delayTimer) {
+      clearTimeout(delayTimer);
+      delayTimer = null;
+    }
+  } catch (error) {
+    logger.error('Streaming send failed:', error);
+    // Fallback to non-streaming
+    await sendFormatted(ctx, text);
+  }
 }