refactor(runner): 收敛上游失败决策与轮转策略

将同平台重试、跨平台动作、健康副作用和冷却排队统一到单一失败决策，避免旧降级策略与 failover 重复执行。\n\n增加事务级单源保护、候选实时刷新、冷却错误契约、管理接口严格校验及兼容策略只读展示。\n\n验证：真实 Gateway HTTP/PostgreSQL 接受测试 10 项通过；go test ./...、pnpm openapi、pnpm lint、pnpm test、pnpm build 均通过。
2026-07-27 23:50:17 +08:00
parent 046c16fc69
commit 31565af07a
19 changed files with 1988 additions and 307 deletions
@@ -218,6 +218,7 @@ func (s *Server) geminiGenerateContent(w http.ResponseWriter, r *http.Request) {
 		if !requestStillConnected(r) {
 			return
 		}
+		applyRunErrorHeaders(w, runErr)
 		if wire := clients.ErrorWireResponse(runErr); wireResponseMatches(wire, clients.ProtocolGeminiGenerateContent) {
 			writeWireResponse(w, wire)
 			return
@@ -270,6 +271,7 @@ func (s *Server) writeGeminiGenerateContentStream(runCtx context.Context, w http
 		if !requestStillConnected(r) {
 			return
 		}
+		applyRunErrorHeaders(w, runErr)
 		if !nativePassthrough && !convertedFrames {
 			if wire := clients.ErrorWireResponse(runErr); wireResponseMatches(wire, clients.ProtocolGeminiGenerateContent) {
 				writeWireResponse(w, wire)