feat(slot): BAT-030 — 자산 중심 cutover 완성 (dcy-020 BAT-δ, REQ-056·057·062·064·065)

M1 literal inactive 전면화: SlotState 5-state(idle/closed 별칭 제거),
마이그레이션 010(CHECK 교체+행 rewrite), ops_checks 를 transition_log 기반 재작성.
M2 집행 매도 수량 브로커 정본(D3): dispatch 매도 qty=broker hldg_qty,
미러 fallback 없음, 브로커 0 → skip+WARN, 리스트 기반 dispatch(head-block 방지).
M3 컬럼 drop + legacy pool 제거: 마이그레이션 011(trading_date·entry_count DROP),
repo 계약 instance 스코프 개편(집행 큐 포함), preallocation 폐기(데몬 7스레드),
admission 자산 중심 단일 경로(slot_id 정본), capacity 재정의(available=M−active),
daily_symbol_entries 코드 경로 제거.
M4 cutover 도구(D1·D4): trex-core-cutover(전체 rebuild, preflight/브로커 carry-over/
--allow-unmapped/--promote-unique/dry-run) + PG 리허설 테스트 8건.
M5 baseline 마감: data-model/runtime-flows/project-structure/interface-contract
자산 중심 최종 갱신 + run-trex-core-daemon 스킬 정합.

검증: 단위 367 passed + ruff clean; PG-gated 29 passed(010/011 round-trip·드리프트
가드·cutover 리허설); RabbitMQ 21 passed; run-the-app e2e(test DB+실 MQ, M=1):
reconcile 슬롯 생성→slot_id 매수→dedup→capacity_full→fill→already_active→
매도→inactive(자산 바인딩 보존)→영구 슬롯 재활성 전 구간 green.
실 cutover 는 운영자 실행(REL 단계, D4).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

trex_core/adapters/persistence/sql/001_create_slot_core_tables.sql

@@ -27,8 +27,11 @@ CREATE TABLE IF NOT EXISTS daily_slot (
     updated_at          TIMESTAMPTZ NOT NULL DEFAULT (now() AT TIME ZONE 'UTC')
 );
 
-CREATE INDEX IF NOT EXISTS idx_daily_slot_trading_date_status
-    ON daily_slot (trading_date, status);
+-- BAT-030 / dcy-020: the (trading_date, status) index is superseded by a
+-- status index — trading_date is dropped at migration 011 and this file is
+-- re-applied on every boot, so it must not reference the dropped column.
+CREATE INDEX IF NOT EXISTS idx_daily_slot_status
+    ON daily_slot (status);
 
 -- daily_symbol_entries — per-day re-entry counter (decision input).
 CREATE TABLE IF NOT EXISTS daily_symbol_entries (

trex_core/adapters/persistence/sql/008_add_slot_entry_count.sql

@@ -1,7 +1,6 @@
--- BAT-025 / dcy-019 / REQ-006: slot-scoped entry_count on daily_slot.
--- Tracks how many times a slot has entered pending_buy (lifetime, per trading
--- day). Drives the buy-admission selector's fairness ordering (idle ∪ closed,
--- least-entered first) and enables closed-slot reallocation (issue #18).
--- Distinct from daily_symbol_entries.entry_count (per-symbol cap, unchanged).
--- Additive + idempotent: existing rows default to 0 (no prior entries counted).
-ALTER TABLE daily_slot ADD COLUMN IF NOT EXISTS entry_count INTEGER NOT NULL DEFAULT 0;
+-- BAT-025 / dcy-019 / REQ-006: added slot-scoped entry_count to daily_slot.
+-- BAT-030 / dcy-020 / REQ-056: entry_count was DROPPED at the asset-centric
+-- cutover (migration 011). Because the migration set is re-applied on every
+-- boot, the original ADD COLUMN here would resurrect the column each run —
+-- so this file is intentionally a no-op now (kept for numbering continuity).
+SELECT 1;

trex_core/adapters/persistence/sql/010_literal_inactive_status.sql

@@ -0,0 +1,11 @@
+-- BAT-030 / dcy-020 / REQ-057: literal `inactive` 전면화 (D2).
+-- The pool-model `idle` (never-bought) and `closed` (sold, flat) statuses are
+-- collapsed into the asset-centric `inactive`. Rewrites any remaining rows and
+-- swaps the status CHECK constraint. Idempotent: the UPDATE matches nothing on
+-- re-run and the constraint is dropped/re-added by name each time.
+UPDATE daily_slot SET status = 'inactive' WHERE status IN ('idle', 'closed');
+
+ALTER TABLE daily_slot DROP CONSTRAINT IF EXISTS daily_slot_status_check;
+ALTER TABLE daily_slot ADD CONSTRAINT daily_slot_status_check CHECK (
+    status IN ('inactive','pending_buy','holding','pending_sell','error')
+);

trex_core/adapters/persistence/sql/011_drop_pool_model_columns.sql

@@ -0,0 +1,9 @@
+-- BAT-030 / dcy-020 / REQ-056: drop pool-model columns (D2, 비가역).
+-- The permanent asset slot is keyed by (instance_key, portfolio_id) and lives
+-- across trading days — `trading_date` (day-scoped pool identity) and
+-- `entry_count` (pool fairness ordering) no longer apply. Time attributes live
+-- on slot_transition_log / ledger rows. DROP COLUMN also removes any dependent
+-- index. Idempotent via IF EXISTS. Rollback = restore from the pre-cutover
+-- backup (see BAT-030 design §4).
+ALTER TABLE daily_slot DROP COLUMN IF EXISTS entry_count;
+ALTER TABLE daily_slot DROP COLUMN IF EXISTS trading_date;