Fix HF dataset import internal error and training SQLite readiness.

Wrap AssistentImportHfDataset in try/catch, batch inserts in a transaction, clearer HF rows errors for gated datasets, EnsureTrainingReady with actionable message, and friendlier training UI errors instead of generic internal error.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/training.js

@@ -50,7 +50,7 @@ export function attachTraining(SA) {
       setAgentHeardStats(state.agentLinked);
     } catch (e) {
       const msg = String(e.message || e);
-      setTrainStatus(isSqliteError(msg) ? `${msg} — ${sqliteHint()}` : msg);
+      setTrainStatus(formatTrainError(msg));
       console.warn('loadAgentHeardSettings', e);
     }
   }
@@ -66,7 +66,7 @@ export function attachTraining(SA) {
       state.agentSettings = data?.settings || settings;
       setTrainStatus('Настройки «услышанного» сохранены');
     } catch (e) {
-      setTrainStatus(String(e.message || e));
+      setTrainStatus(formatTrainError(e.message || e));
     }
   }
 
@@ -80,7 +80,7 @@ export function attachTraining(SA) {
       setTrainStatus(`Подключено: +${data?.linked_now ?? 0}, всего ${data?.total_linked ?? '—'}`);
       await refreshSamples();
     } catch (e) {
-      setTrainStatus(String(e.message || e));
+      setTrainStatus(formatTrainError(e.message || e));
     }
   }
 
@@ -91,7 +91,25 @@ export function attachTraining(SA) {
 
   function isSqliteError(msg) {
     const s = String(msg || '').toLowerCase();
-    return s.includes('sqlite') || s.includes('sqlconnection');
+    return s.includes('sqlite')
+      || s.includes('sqlconnection')
+      || s.includes('train_samples')
+      || s.includes('training database unavailable');
+  }
+
+  function isGenericServerError(msg) {
+    return /internal error occurred/i.test(String(msg || ''));
+  }
+
+  function formatTrainError(msg) {
+    const s = String(msg || '');
+    if (isSqliteError(s)) {
+      return `${s} — ${sqliteHint()}`;
+    }
+    if (isGenericServerError(s)) {
+      return `${s} — часто SQLite/импорт HF: gpu-rent seed-extensions, restart SwarmUI, HF token для gated.`;
+    }
+    return s;
   }
 
   function sqliteHint() {
@@ -167,7 +185,7 @@ export function attachTraining(SA) {
       const data = await SA.request('AssistentListTrainSamples', { status, persona, limit: 300 });
       if (data?.error) {
         const msg = data.error;
-        setTrainStatus(isSqliteError(msg) ? `${msg} — ${sqliteHint()}` : msg);
+        setTrainStatus(formatTrainError(msg));
         const stats = $('sa_train_stats');
         if (stats) stats.textContent = 'Датасет недоступен (SQLite)';
         state.samples = [];
@@ -196,7 +214,7 @@ export function attachTraining(SA) {
       }
       renderSamples();
     } catch (e) {
-      setTrainStatus(String(e.message || e));
+      setTrainStatus(formatTrainError(e.message || e));
     }
   }
 
@@ -441,7 +459,7 @@ export function attachTraining(SA) {
       renderHfList();
       setTrainStatus(`Найдено: ${state.hfResults.length}`);
     } catch (e) {
-      setTrainStatus(String(e.message || e));
+      setTrainStatus(formatTrainError(e.message || e));
     }
   }
 
@@ -522,7 +540,7 @@ export function attachTraining(SA) {
       $('sa_train_samples')?.scrollIntoView({ behavior: 'smooth', block: 'nearest' });
     } catch (e) {
       const err = String(e.message || e);
-      const show = isSqliteError(err) ? `${err} — ${sqliteHint()}` : err;
+      const show = formatTrainError(err);
       setTrainStatus(show);
       if (hfSt) hfSt.textContent = show;
     } finally {
@@ -578,7 +596,7 @@ export function attachTraining(SA) {
       setTrainStatus(`Готово: ${data.name}`);
       SA.app?.refreshModels?.();
     } catch (e) {
-      setTrainStatus(String(e.message || e));
+      setTrainStatus(formatTrainError(e.message || e));
     } finally {
       btn?.removeAttribute('disabled');
     }
@@ -712,7 +730,7 @@ export function attachTraining(SA) {
       setTrainingTab('train');
       setTrainStatus('QLoRA запущена — прогресс ниже');
     } catch (e) {
-      setTrainStatus(String(e.message || e));
+      setTrainStatus(formatTrainError(e.message || e));
     }
   }
 
@@ -722,7 +740,7 @@ export function attachTraining(SA) {
       setTrainingLock(false);
       setTrainStatus('Отменено');
     } catch (e) {
-      setTrainStatus(String(e.message || e));
+      setTrainStatus(formatTrainError(e.message || e));
     }
   }
 
@@ -760,7 +778,7 @@ export function attachTraining(SA) {
       });
       setTrainStatus('Раннер сохранён');
     } catch (e) {
-      setTrainStatus(String(e.message || e));
+      setTrainStatus(formatTrainError(e.message || e));
     }
   }
 
@@ -805,7 +823,7 @@ export function attachTraining(SA) {
         const data = await SA.request('AssistentImportDataset', { format: 'auto', content: text });
         setTrainStatus(`Импорт: ${data.imported}`);
         await refreshSamples();
-      } catch (err) { setTrainStatus(String(err.message || err)); }
+      } catch (err) { setTrainStatus(formatTrainError(err.message || err)); }
       e.target.value = '';
     });
     $('sa_btn_train_export')?.addEventListener('click', async () => {
@@ -842,7 +860,7 @@ export function attachTraining(SA) {
           setAgentHeardStats(state.agentLinked);
           setTrainStatus('Пример подключён к агенту');
           await refreshSamples();
-        } catch (err) { setTrainStatus(String(err.message || err)); }
+        } catch (err) { setTrainStatus(formatTrainError(err.message || err)); }
       } else if (e.target.closest('[data-unlink]')) {
         try {
           const data = await SA.request('AssistentUnlinkTrainSampleFromAgent', { id });
@@ -850,7 +868,7 @@ export function attachTraining(SA) {
           setAgentHeardStats(state.agentLinked);
           setTrainStatus('Пример отключён от агента');
           await refreshSamples();
-        } catch (err) { setTrainStatus(String(err.message || err)); }
+        } catch (err) { setTrainStatus(formatTrainError(err.message || err)); }
       } else if (e.target.closest('[data-del]')) {
         if (window.confirm('Удалить пример?')) {
           await SA.request('AssistentDeleteTrainSample', { id });