feat: improve account filters and queued tests

[MiaoZang]

Summary

• Localize account quota/status filters and add active_excluding_quota_stopped plus OpenAI 5h/7d zero-usage filters.
• Add account model/quota/proxy filter parameters across admin list/export flows.
• Queue OpenAI account tests after quota reset/refresh and add safe batch account testing.
• Keep this PR scoped to account filtering/testing; it does not include custom OAuth helper APIs such as addacc2/upacc2/clsacc.

Verification

• go test ./internal/service -run 'Test.*Account.*(Model|Quota|Schedulable|Filter|Usage)|TestGatewayRequest' -count=1
• go test ./internal/handler/admin -run 'Test.*(ResetQuota|Account|Batch|TestQueue)' -count=1
• GOTMPDIR=T:\C++_save\GPT\sub2api部署\tmp-go go test ./internal/repository -run 'Test.*Account.*(Filter|List|Sort)' -count=1 -p 1
• go test ./internal/handler/admin ./internal/service ./internal/repository ./internal/server -run 'Test(AccountHandler|AdminService|.*Account.*|.*Contract|.*API)' -count=1 -p 1
• pnpm exec vitest run src/views/admin/__tests__/AccountsView.spec.ts
• pnpm exec eslint src/views/admin/AccountsView.vue src/components/admin/account/AccountTableFilters.vue src/api/admin/accounts.ts src/components/admin/account/accountModelFilter.ts src/components/admin/account/accountProxyFilter.ts
• git diff --check

[github-actions]

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[MiaoZang]

I have read the CLA Document and I hereby sign the CLA