Fix truncation issues in piplan, SQLite storage, and history compression; add PIPlanMaxChars configuration

cmd/bot/main.go

@@ -225,6 +225,9 @@ func runMessageChannel(ctx context.Context, cfg config.Config, engine *agent.Orc
 			func(ctx context.Context, chatID, userID string, files []llm.InputFile) ([]string, error) {
 				return engine.UploadAndCacheFiles(ctx, chatID, userID, files)
 			},
+			func(ctx context.Context, chatID string, limit int) ([]memory.Message, error) {
+				return engine.GetHistory(chatID, limit)
+			},
 		)
 	default:
 		return fmt.Errorf("unsupported message channel: %s", cfg.MessageChannel)
@@ -280,6 +283,14 @@ func buildWebUIStreamForwarder(callback webui.StreamEventCallback, exposeReasoni
 				Content: event.Content,
 				Step:    event.Step,
 			})
+		case agent.StreamEventTypeWorkspaceStart, agent.StreamEventTypeWorkspaceDelta, agent.StreamEventTypeWorkspaceEnd:
+			return callback(webui.StreamEvent{
+				Type:           webui.StreamEventType(event.Type),
+				Content:        event.Content,
+				Step:           event.Step,
+				ToolName:       event.ToolName,
+				WorkspaceTitle: event.WorkspaceTitle,
+			})
 		default:
 			return nil
 		}