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Add model_source query parameter to GetModelStats and GetUserBreakdown handlers with explicit IsValidModelSource validation. Include model_source in cache key to prevent cross-source cache hits. Expose upstream_model in usage log DTO with omitempty semantics.

Support querying model statistics by 'requested', 'upstream', or 'mapping' dimension. Add resolveModelDimensionExpression for safe SQL expression generation, IsValidModelSource whitelist validator, and NormalizeModelSource fallback. Repository persists and scans upstream_model in all insert/select paths.

Propagate UpstreamModel through ForwardResult and OpenAIForwardResult in Anthropic direct, API-key passthrough, Bedrock, and OpenAI gateway flows. Extract optionalNonEqualStringPtr and optionalTrimmedStringPtr into usage_log_helpers.go. Store upstream_model only when it differs from the requested model.

Also introduces anthropicPassthroughForwardInput struct to reduce parameter count.

Add nullable VARCHAR(100) column to record the actual model sent to upstream providers when model mapping is applied. NULL means no mapping — the requested model was used as-is.

Includes migration, concurrent index for aggregation queries, Ent schema regeneration, and migration README correction (forward-only runner, not goose).

 fix(settings): remove pattern attribute blocking Claude Code version save fix issue #1081

feat: 个人资料弹窗 GitHub 链接仅对管理员可见

  fix(usage): use real reset header for 5h session window countdown fix issue #1064 #1065

目前作者已有商业站信息，面向管理可提供赞助渠道，面向普通用户请考虑提供信息隐藏措施

The `pattern="\d+\.\d+\.\d+"` on the min_claude_code_version input caused
the browser's native HTML5 form validation to silently block form submission
when the value was invalid or when the hidden gateway tab was active. This
resulted in no network request being sent when clicking Save on any tab.

Backend already validates semver format and returns a proper 400 error,
so the frontend pattern attribute is redundant.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

- Add compile-time interface assertion for sessionWindowMockRepo
- Fix flaky fallback test by capturing time.Now() before calling UpdateSessionWindow
- Replace stale hardcoded timestamps with dynamic future values
- Add millisecond detection and bounds validation for reset header timestamp
- Use pause/resume pattern for interval in UsageProgressBar to avoid idle timers on large lists
- Fix gofmt comment alignment
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

fix(proxy): encode special chars in proxy credentials

fix(auto setup): 修复初始测试连接硬编码问题导致使用自定义数据库测试失败无法执行 auto setup流程

refactor(antigravity): unify TestConnection with dispatch retry loop

feat(dashboard): add per-user drill-down for distribution charts

fix(oauth): extract system-role input items into instructions field fix issue #1066

fix(openai): use /usage as single source and zero expired codex windows

feat(frontend): set last 24h as default range in Usage and Dashboard

feat(backup): 备份/恢复异步化，解决 504 超时

TestConnection now reuses antigravityRetryLoop instead of a standalone
HTTP loop, gaining credits overages, smart retry, and 429/503 backoff
for free. AccountSwitchError is caught and surfaced as a friendly
message. Also populates RateLimitedModel in TempUnscheduled switch error.

Test fixes:
- Use RATE_LIMIT_EXCEEDED in 503 short-delay test to avoid 60x1s timeout
- Clamp waitDuration=0 instead of 999s to avoid 15s max-wait timeout
- Enhance mockSmartRetryUpstream with repeatLast and body caching

The expanded user breakdown rows already align with the parent table
columns (Requests, Token, Actual, Standard), so the repeated sub-header
wastes vertical space. Remove the <thead> from UserBreakdownSubTable.

Handler tests (9 cases): group_id/model/endpoint filters, default
endpoint_type, custom limit, limit clamping, response format,
empty result, no-filter pass-through.

Repository test: resolveEndpointColumn mapping for inbound/upstream/path.

Click on a group name, model name, or endpoint name in the distribution
tables to expand and show per-user usage breakdown (requests, tokens,
actual cost, standard cost).

Backend: new GET /admin/dashboard/user-breakdown API with group_id,
model, endpoint, endpoint_type filters.
Frontend: clickable rows with expand/collapse sub-table in all three
distribution charts.

The 5h window reset time displayed for Setup Token accounts was inaccurate
because UpdateSessionWindow predicted the window end as "current hour + 5h"
instead of reading the actual `anthropic-ratelimit-unified-5h-reset` response
header. This caused the countdown to differ from the official Claude page.

Backend: parse the reset header (Unix timestamp) and use it as the real
window end, falling back to the hour-truncated prediction only when the
header is absent. Also correct stale predictions when a subsequent request
provides the real reset time.

Frontend: add a reactive 60s timer so the reset countdown in
UsageProgressBar ticks down in real-time instead of freezing at the
initial value.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

OAuth upstreams (ChatGPT) reject requests containing role:"system" in
the input array with HTTP 400 "System messages are not allowed". Extract
such items before forwarding and merge their content into the top-level
instructions field, prepending to any existing value.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

POST /backups 和 POST /backups/:id/restore 改为异步：立即返回 HTTP 202，
后台 goroutine 独立执行 pg_dump → gzip → S3 上传，前端每 2s 轮询状态。

后端:
- 新增 StartBackup/StartRestore 方法，后台 goroutine 不依赖 HTTP 连接
- Graceful shutdown 等待活跃操作完成，启动时清理孤立 running 记录
- BackupRecord 新增 progress/restore_status 字段支持进度和恢复状态追踪

前端:
- 创建备份/恢复后轮询 GET /backups/:id 直到完成或失败
- 标签页切换暂停/恢复轮询，组件卸载清理定时器
- 正确处理 409（备份进行中）和轮询超时
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

fix(antigravity): add stream keepalive to prevent connection drops

Docker named volumes and host bind-mounts may be owned by root,
causing "open data/model_pricing.sha256: permission denied" when
the container runs as the non-root sub2api user.

Add an entrypoint script that fixes /app/data ownership before
dropping to sub2api via su-exec. Replace USER directive with the
entrypoint approach across all three Dockerfiles and update both
GoReleaser configs to include the script in Docker build contexts.

fix(i18n): correct usage label from "Total" to "Last 30d"

The usage stats query defaults to a 30-day rolling window, but the
UI label said "Total"/"累计" implying lifetime aggregation. Rename
to "Last 30d"/"近30天" so the label matches the actual query semantics.

Closes #1060

Antigravity streaming handlers were missing the keepalive mechanism
that exists in the standard gateway, causing proxy/CDN idle timeouts
to break connections during long thinking phases (e.g. claude-opus-4-6).
This resulted in truncated responses with missing tool calls.

Add StreamKeepaliveInterval support to all three Antigravity streaming
paths: Claude SSE, Gemini SSE, and upstream passthrough.

fix(admin/accounts): make usage window refresh deterministic and restore missing stats

chore(antigravity): bump default User-Agent version to 1.20.5

- Simplify OpenAI rendering: always fetch /usage, prefer fetched data over
  codex snapshot (snapshot serves as loading placeholder only)
- Remove dead code: preferFetchedOpenAIUsage, isOpenAICodexSnapshotStale,
  and unreachable template branch
- Add today-stats support for key accounts (req/tokens/A/U badges)
- Use formatCompactNumber for consistent number formatting
- Add A/U badge titles for clarity
- Filter zero-value window stats in UsageProgressBar to avoid empty badges
- Update tests to match new fetched-data-first behavior