Module lifecycle_store 

Lifecycle ledger store: append-only JSONL + 投影缓存的统一入口。

这个 module 的物理拆分：

• mod.rs：对外类型与 LifecycleStore / LifecycleProjection 实现、常量、顶层 helper
• api.rs：对外 mutation 与查询 API（原 lifecycle_store.rs 里的 pub fn）
• projection.rs：投影缓存 + 快照读写 + fingerprint
• internal.rs：私有的 ID/scope/timestamp/写入/状态转移辅助
• tests.rs：单元测试

外部 use crate::lifecycle_store::xxx 的路径保持不变。

Structs

LedgerEntry

LifecycleProjection

LifecycleStore

ProposeMemoryRequest

RecordMemoryRequest

TransitionMetadata

Functions

accept_memory

accept_memory_with_metadata

archive_memory

archive_memory_with_metadata

latest_state_by_scope

latest_state_by_state

latest_state_entries

ledger_file_name

lifecycle_query_plan

lifecycle_root_from_config

pending_review_entries

project_latest_state

promote_memory_to_canonical

promote_memory_to_canonical_with_metadata

propose_ai_memory

read_events_for_record

read_projection

record_manual_memory

review_queue_for_scope

review_queue_plan

wakeup_ready_entries

wakeup_ready_for_scope