refactor: replace Load More with Pagination across frontend and backend

- Replace all "Load More" / "Show More" buttons with Pagination components
  in model-list, bot-compaction, and bot-heartbeat views
- Convert backend log APIs (compaction, heartbeat, schedule) from
  cursor-based (before+limit) to offset+limit pagination with total_count
- Update SQL queries to use OFFSET+LIMIT and add COUNT queries
- Add shared parseOffsetLimit helper in handler_helpers.go
- Regenerate sqlc, Swagger docs, and TypeScript SDK
- Clean up unused i18n keys (loadMore, showMore, history.loadMore)

db/queries/compaction_logs.sql

@@ -24,9 +24,11 @@ WHERE id = $1;
 SELECT id, bot_id, session_id, status, summary, message_count, error_message, usage, model_id, started_at, completed_at
 FROM bot_history_message_compacts
 WHERE bot_id = $1
-  AND ($2::timestamptz IS NULL OR started_at < $2)
 ORDER BY started_at DESC
-LIMIT $3;
+LIMIT $2 OFFSET $3;
+
+-- name: CountCompactionLogsByBot :one
+SELECT count(*) FROM bot_history_message_compacts WHERE bot_id = $1;
 
 -- name: ListCompactionLogsBySession :many
 SELECT id, bot_id, session_id, status, summary, message_count, error_message, usage, model_id, started_at, completed_at

db/queries/heartbeat_logs.sql

@@ -18,9 +18,11 @@ RETURNING id, bot_id, session_id, status, result_text, error_message, usage, mod
 SELECT id, bot_id, session_id, status, result_text, error_message, usage, started_at, completed_at
 FROM bot_heartbeat_logs
 WHERE bot_id = $1
-  AND ($2::timestamptz IS NULL OR started_at < $2::timestamptz)
 ORDER BY started_at DESC
-LIMIT $3;
+LIMIT $2 OFFSET $3;
+
+-- name: CountHeartbeatLogsByBot :one
+SELECT count(*) FROM bot_heartbeat_logs WHERE bot_id = $1;
 
 -- name: DeleteHeartbeatLogsByBot :exec
 DELETE FROM bot_heartbeat_logs WHERE bot_id = $1;

db/queries/schedule_logs.sql

@@ -18,17 +18,21 @@ RETURNING id, schedule_id, bot_id, session_id, status, result_text, error_messag
 SELECT id, schedule_id, bot_id, session_id, status, result_text, error_message, usage, started_at, completed_at
 FROM schedule_logs
 WHERE bot_id = $1
-  AND ($2::timestamptz IS NULL OR started_at < $2::timestamptz)
 ORDER BY started_at DESC
-LIMIT $3;
+LIMIT $2 OFFSET $3;
+
+-- name: CountScheduleLogsByBot :one
+SELECT count(*) FROM schedule_logs WHERE bot_id = $1;
 
 -- name: ListScheduleLogsBySchedule :many
 SELECT id, schedule_id, bot_id, session_id, status, result_text, error_message, usage, started_at, completed_at
 FROM schedule_logs
 WHERE schedule_id = $1
-  AND ($2::timestamptz IS NULL OR started_at < $2::timestamptz)
 ORDER BY started_at DESC
-LIMIT $3;
+LIMIT $2 OFFSET $3;
+
+-- name: CountScheduleLogsBySchedule :one
+SELECT count(*) FROM schedule_logs WHERE schedule_id = $1;
 
 -- name: DeleteScheduleLogsByBot :exec
 DELETE FROM schedule_logs WHERE bot_id = $1;