feat(teams): member task progress reminder + fix broken progress notifications

- Fix progress event payload missing TaskNumber, Subject, OwnerAgentKey,
  ProgressPercent, ProgressStep — notifications were rendering empty
- Fix progress notification format to include task name (consistent with
  dispatched/failed) and guard empty ProgressStep
- Change percent tool schema from number to integer for clarity
- Add pre-run member task reminder injecting task context before LLM loop
- Add mid-loop progress nudge every 10 iterations with suggested percent
  based on iteration ratio (handles maxIter=0 unlimited case)
- Enhance leader cross-session reminder to show progress % when available
- Strengthen TEAM.md member guidance: focus, result quality, progress rules
- Add progress bar to task list table view (matches kanban card pattern)

cmd/gateway.go

@@ -575,7 +575,11 @@ func runGateway() {
 			case "dispatched":
 				content = fmt.Sprintf("📋 Task #%d \"%s\" → assigned to %s", payload.TaskNumber, payload.Subject, agentName)
 			case "progress":
-				content = fmt.Sprintf("⏳ Task #%d: %d%% — %s", payload.TaskNumber, payload.ProgressPercent, payload.ProgressStep)
+				if payload.ProgressStep != "" {
+					content = fmt.Sprintf("⏳ Task #%d \"%s\": %d%% — %s", payload.TaskNumber, payload.Subject, payload.ProgressPercent, payload.ProgressStep)
+				} else {
+					content = fmt.Sprintf("⏳ Task #%d \"%s\": %d%%", payload.TaskNumber, payload.Subject, payload.ProgressPercent)
+				}
 			case "failed":
 				reason := payload.Reason
 				if len(reason) > 200 {