fix: voice STT path fix + execSync error handling + fetch download

src/bot/index.js

@@ -1088,21 +1088,36 @@ export async function initBot(config, api, tools, skills, agents) {
       const url = `https://api.telegram.org/file/bot${botToken}/${file.file_path}`;
       const oggPath = `/tmp/zcode-voice-${Date.now()}.ogg`;
 
-      // Download voice file
+      // Download voice file via fetch (faster than curl subprocess)
       const { execSync } = await import('child_process');
-      execSync(`curl -sL "${url}" -o "${oggPath}"`, { timeout: 15000 });
+      const voiceResp = await fetch(url);
+      if (!voiceResp.ok) throw new Error(`Download failed: ${voiceResp.status}`);
+      const { writeFileSync, unlinkSync } = await import('fs');
+      writeFileSync(oggPath, Buffer.from(await voiceResp.arrayBuffer()));
       logger.info(`Voice downloaded: ${oggPath}`);
 
-      // Run Vosk STT via Python script
-      const sttScript = new URL('../scripts/stt.py', import.meta.url).pathname;
-      const result = execSync(
-        `python3 "${sttScript}" "${oggPath}" 2>/dev/null`,
-        { timeout: 30000, encoding: 'utf-8' }
-      );
-      const parsed = JSON.parse(result.trim());
-
-      // Cleanup
-      execSync(`rm -f "${oggPath}"`);
+      // Run Vosk STT — path is ../../scripts/stt.py from src/bot/
+      const sttScript = new URL('../../scripts/stt.py', import.meta.url).pathname;
+      let parsed;
+      try {
+        const result = execSync(
+          `python3 "${sttScript}" "${oggPath}"`,
+          { timeout: 30000, encoding: 'utf-8', stdio: ['pipe', 'pipe', 'pipe'] }
+        );
+        parsed = JSON.parse(result.trim());
+      } catch (e) {
+        // exit code 1 = no speech detected, stdout still has JSON
+        const stdout = e.stdout?.trim();
+        if (stdout) {
+          try { parsed = JSON.parse(stdout); } catch { parsed = null; }
+        }
+        if (!parsed || !parsed.text) {
+          await ctx.api.editMessageText(ctx.chat.id, statusMsg.message_id,
+            '🎤 Could not detect speech in the voice message.');
+          return;
+        }
+      }
+      unlinkSync(oggPath);
 
       if (parsed.error) {
         logger.error(`STT error: ${parsed.error}`);