# Project State

## Project Reference

See: .planning/PROJECT.md (updated 2026-03-21)

**Core value:** 提供可复用的盈亏统计方法，使平台运营能从用户和活动两个维度快速了解各类资产的收支状况
**Current focus:** Phase 1 — Core P&L Functions

## Current Position

Phase: 1 of 2 (Core P&L Functions)
Plan: 0 of TBD in current phase
Status: Ready to plan
Last activity: 2026-03-21 — Roadmap created, ready to begin Phase 1 planning

Progress: [░░░░░░░░░░] 0%

## Performance Metrics

**Velocity:**
- Total plans completed: 0
- Average duration: — min
- Total execution time: 0 hours

**By Phase:**

| Phase | Plans | Total | Avg/Plan |
|-------|-------|-------|----------|
| - | - | - | - |

**Recent Trend:**
- Last 5 plans: —
- Trend: —

*Updated after each plan completion*

## Accumulated Context

### Decisions

Decisions are logged in PROJECT.md Key Decisions table.
Recent decisions affecting current work:

- Init: Fan-out + in-memory merge query pattern chosen (avoids Cartesian product JOINs)
- Init: Read-only DB routing enforced — constructor injects DbR only, no GetDbW() in package
- Init: All existing finance.* utilities (IsGamePassOrder, ComputeProfit, etc.) must be reused, not re-derived
- Init: Phase 2 (Fragment breakdown) requires schema verification of fragment_synthesis_logs join path before implementation

### Pending Todos

None yet.

### Blockers/Concerns

- Phase 2: fragment_synthesis_logs join path and cost formula not yet verified — requires schema review during Phase 2 planning
- Phase 1: SQLite test compatibility for CAST(AS SIGNED), GREATEST(), LIKE 'GP%' — must use Go-layer helpers or conditional SQL paths in integration tests

## Session Continuity

Last session: 2026-03-21
Stopped at: Roadmap created — ROADMAP.md and STATE.md written, REQUIREMENTS.md traceability updated
Resume file: None