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Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent

)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent

)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent

)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

Merge remote-tracking branch 'origin/feat/ops-error-observability-transfer' into feat/anthropic-openai-endpoint-compat

# Conflicts:
#	frontend/src/api/admin/ops.ts
#	frontend/src/views/admin/ops/components/OpsErrorDetailModal.vue
#	frontend/src/views/admin/ops/components/OpsErrorLogTable.vue

Show endpoint, model mapping, and request type in the ops error log
table and detail modal:
- Endpoint column with inbound/upstream tooltip
- Model column showing requested→upstream mapping with arrow
- Request type badge (sync/stream/ws) in status column
- New detail cards for inbound endpoint, upstream endpoint, request type

Mirror the existing /v1/messages platform split pattern:
- OpenAI groups → OpenAIGateway handlers (existing, unchanged)
- Non-OpenAI groups → Gateway handlers (new Anthropic-upstream path)

Updated both /v1 prefixed routes and non-prefixed alias routes
(/responses, /chat/completions). WebSocket route (/v1/responses GET)
remains OpenAI-only as Anthropic has no WebSocket equivalent.

New HTTP handlers for Anthropic platform groups accepting OpenAI-format
endpoints:

- GatewayHandler.Responses: /v1/responses for non-OpenAI groups
- GatewayHandler.ChatCompletions: /v1/chat/completions for non-OpenAI groups

Both handlers include:
- Claude Code only restriction (403 reject when claude_code_only enabled,
  since these endpoints are never Claude Code clients)
- Full auth → billing → user/account concurrency → failover loop
- Ops error/endpoint context propagation
- Async usage recording via worker pool

Error responses use each endpoint's native format (Responses API format
for /v1/responses, CC format for /v1/chat/completions).

New forwarding methods on GatewayService for Anthropic platform groups:

- ForwardAsResponses: accept Responses body → convert to Anthropic →
  forward to upstream → convert response back to Responses format.
  Supports both streaming (SSE event-by-event conversion) and buffered
  (accumulate then convert) response modes.
- ForwardAsChatCompletions: chain CC→Responses→Anthropic for request,
  Anthropic→Responses→CC for response. Streaming uses dual state machine
  chain with [DONE] marker.

Both methods reuse existing GatewayService infrastructure:
buildUpstreamRequest, Claude Code mimicry, cache control enforcement,
model mapping, and return UpstreamFailoverError for handler-level retry.

Add reverse-direction converters for Anthropic platform groups to accept
OpenAI-format requests:

- ResponsesToAnthropicRequest: Responses API input → Anthropic Messages
  request with system extraction, tool/toolChoice mapping, reasoning
  effort conversion, image data URI↔base64, and consecutive role merging
- AnthropicToResponsesResponse: Anthropic response → Responses response
  with content block→output item mapping, usage, stop_reason→status
- AnthropicEventToResponsesEvents: stateful SSE stream converter
  (Anthropic streaming protocol → Responses streaming protocol)
- FinalizeAnthropicResponsesStream: synthetic termination for
  incomplete streams

feat(ops): propagate endpoint/request-type context in handlers; add UpstreamURL to upstream error events

fix: prevent silent save failure in admin settings form

fix(apicompat): support array content for system and tool messages

The settings form contains multiple <input type="url"> fields that lack
a name attribute. When a field value fails browser URL validation, the
browser silently blocks form submission without showing an error — no
network request is made, and the user sees no feedback.

Root cause: HTML5 form validation requires a focusable element with a
name attribute to surface errors. Without it, validation fails silently.

Fix:
- Add novalidate to the <form> to disable browser-native URL validation
- Add an isValidHttpUrl() helper in saveSettings() to replicate the
  same checks the backend performs
- Optional URL fields (frontend_url, doc_url): auto-clear invalid values
  instead of blocking the save, matching backend behaviour (these fields
  accept empty string without error)
- purchase_subscription_url: block save with a clear error message when
  enabled + invalid; auto-clear when disabled to prevent the backend 400
  "Purchase Subscription URL must be an absolute http(s) URL" error
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

feat(usage): 统一使用记录中的请求模型与上游模型语义

fix: correct log levels for thinking block signature retry flow

fix(ops_alert): wg.Add 竞态修复 + leader lock release context 泄漏

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent

)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

LegacyPrintf uses inferStdLogLevel() to infer log level from message
text. Any message containing the word "error" is classified as ERROR
level, causing the entire signature-retry recovery flow (which succeeds)
to produce spurious ERROR log entries.

Changes:
- Remove noisy [SignatureCheck] debug logs inside isThinkingBlockSignatureError
  that were logging every detected signature check as ERROR
- Change retry-start log to WARN level via [warn] prefix
- Change retry-success log to INFO level by removing "error" from message
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent

)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent

)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent

)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent

)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent

)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent

)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent

)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent

)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent

)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent

)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent

)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent

)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

1. Start() 中 wg.Add(1) 从 run() goroutine 内部移到 go s.run() 之前，
   防止 Stop().wg.Wait() 在 Add 之前返回导致孤儿 goroutine。
2. tryAcquireLeaderLock 返回的 release 闭包改用独立的
   context.Background()+5s 超时，避免捕获的 evaluateOnce ctx
   在 defer 执行时已过期导致锁释放失败（最长阻塞 90s TTL）。

feat(openai): 增加 gpt-5.4-mini/nano 模型支持与定价配置

fix: quota display shows stale cumulative usage after daily/weekly reset