perf(storage): 极简化任务历史并增加保留治理

停止持久化 provider 原始响应、兼容响应快照、attempt/event/outbox 重复 JSON，并由标准任务结果动态生成 Kling/Keling/Volces 兼容响应。

增加事件去重与预算、极简 callback 投递、7/30 天分批清理、安全删除条件、并发迁移索引及可实际恢复的任务域排除备份。历史清理默认关闭，待兼容协议和异步恢复在线验证后单独启用。

验证：Go 全量测试与 go vet、PostgreSQL 18 集成与实际备份恢复、迁移安全测试、bash -n、ShellCheck、Compose 配置和人工发布脚本测试均通过。

apps/api/internal/store/compatibility_tasks.go

@@ -2,7 +2,6 @@ package store
 
 import (
 	"context"
-	"encoding/json"
 	"strings"
 )
 
@@ -16,25 +15,19 @@ type CompatibilitySubmission struct {
 }
 
 func (s *Store) SetTaskCompatibilitySubmission(ctx context.Context, taskID string, submission CompatibilitySubmission) error {
-	headers, _ := json.Marshal(emptyObjectIfNil(submission.Headers))
-	body, _ := json.Marshal(emptyObjectIfNil(submission.Body))
 	_, err := s.pool.Exec(ctx, `
 UPDATE gateway_tasks
-SET compatibility_protocol = NULLIF($2, ''),
-    compatibility_public_id = NULLIF($3, ''),
-    compatibility_source_protocol = NULLIF($4, ''),
-    compatibility_submit_http_status = NULLIF($5, 0),
-    compatibility_submit_headers = $6::jsonb,
-    compatibility_submit_body = $7::jsonb,
+SET compatibility_protocol = COALESCE(NULLIF($2, ''), compatibility_protocol),
+    compatibility_public_id = NULL,
+    compatibility_source_protocol = COALESCE(NULLIF($3, ''), compatibility_source_protocol),
+    compatibility_submit_http_status = NULL,
+    compatibility_submit_headers = '{}'::jsonb,
+    compatibility_submit_body = '{}'::jsonb,
     updated_at = now()
 WHERE id = $1::uuid`,
 		taskID,
 		strings.TrimSpace(submission.TargetProtocol),
-		strings.TrimSpace(submission.PublicID),
 		strings.TrimSpace(submission.SourceProtocol),
-		submission.HTTPStatus,
-		string(headers),
-		string(body),
 	)
 	return err
 }
@@ -44,7 +37,11 @@ func (s *Store) GetCompatibilityTask(ctx context.Context, protocol string, publi
 SELECT `+gatewayTaskColumns+`
 FROM gateway_tasks
 WHERE compatibility_protocol = $1
-  AND compatibility_public_id = $2
+  AND (
+    id::text = $2
+    OR remote_task_id = $2
+    OR compatibility_public_id = $2
+  )
 LIMIT 1`, strings.TrimSpace(protocol), strings.TrimSpace(publicID)))
 	if err != nil {
 		return GatewayTask{}, err