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- platform-image 移除 PlatformImageError::FallbackFailed、recovered_failure_audits()、with_recovered_failure_audits 与 into_final_error - GeneratedImages 去掉恒为空的 recovered_failure_audits 字段，image_source 两处构造同步收敛 - executor 去掉空 Vec 累积、成功路径空 append 与 finish_image_model_fallback_error 包装，失败分支直接返回原错误 - api-server 去掉成功摘要的 recoveredFailureCount 与两处 recovered audit 落库循环，map_platform_image_error 去掉不可达分支 - 测试移除恒空断言，image_generation_does_not_retry_as_another_model 改为断言终态 Upstream 401 - 同步开发运维文档与 decision-log（含说明 2026-07-21 兜底条目的 recoveredFailureCount 已退役）
server-rs 工作区说明
更新时间：2026-05-15
server-rs/ 是当前唯一后端工作区，承载 Rust api-server、SpacetimeDB module、领域模块、平台副作用适配和共享契约。旧 server-node、Express、PostgreSQL、Go 服务端和 maincloud 口径均为历史残留，不再作为当前实现目标。
当前职责
crates/api-server：Axum HTTP / SSE / BFF 门面、鉴权、中间件、外部服务编排和 DTO 映射。crates/spacetime-module：SpacetimeDB 表、reducer、procedure、事务 adapter、row mapper 和迁移。crates/spacetime-client：后端访问 SpacetimeDB 的 typed facade。crates/module-*：领域模型、命令、应用规则、领域事件和领域错误。crates/platform-*：OSS、LLM、语音、认证等外部平台能力。crates/shared-contracts：前后端共享 DTO 与公开契约。crates/shared-kernel、crates/shared-logging、crates/tests-support：跨模块基础能力、日志和测试支撑。
开发规则
server-rs/Cargo.toml是 workspace 成员和依赖版本事实源；第三方依赖和 workspace 内 crate path 优先放在[workspace.dependencies]。module-*不直接依赖 Axum、SpacetimeDB table/reducer/procedure、reqwest、OSS、LLM、spacetime-client、tokio或文件系统。api-server不承接领域真相；发现领域规则时优先沉到对应module-*。- SpacetimeDB schema 变化必须同步
spacetime-module/src/migration.rs、生成绑定和当前后端架构文档的表目录。 - 人工命令、本地联调和文档示例不要使用
spacetime --root-dir。
常用命令
cargo check -p api-server --manifest-path server-rs/Cargo.toml
cargo test -p api-server --manifest-path server-rs/Cargo.toml
npm run check:server-rs-ddd
npm run check:spacetime-schema
npm run spacetime:generate
npm run dev:api-server
涉及 API smoke 时用 npm run dev:api-server 启动后端并检查 /healthz，不要使用旧 api-server:maincloud。
当前文档
- ../docs/【后端架构】server-rs与SpacetimeDB数据契约-2026-05-15.md：DDD 边界、API 分组、schema 变更规则和表目录。
- ../docs/【开发运维】本地开发验证与生产运维-2026-05-15.md：本地启动、检查、SpacetimeDB 操作和生产运维。