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data/schema/sqlite_schema.sql

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+-- DAT10 전술 오프라인 단말 로컬 SQLite DB 스키마
+PRAGMA foreign_keys = ON;
+
+-- 1. 마스터 재고 품목 테이블
+CREATE TABLE IF NOT EXISTS inventory_items (
+    nsn_code TEXT PRIMARY KEY,
+    item_name TEXT NOT NULL,
+    supply_class TEXT NOT NULL CHECK(supply_class IN ('Class_I', 'Class_II', 'Class_III', 'Class_IV', 'Class_V', 'Class_IX')),
+    criticality_level TEXT DEFAULT 'NORMAL' CHECK(criticality_level IN ('CRITICAL', 'HIGH', 'NORMAL', 'LOW')),
+    unit_cost REAL NOT NULL DEFAULT 0.0,
+    safety_stock_threshold INTEGER NOT NULL DEFAULT 10,
+    total_local_stock INTEGER NOT NULL DEFAULT 0,
+    crdt_clock INTEGER NOT NULL DEFAULT 0,
+    updated_at_utc TEXT NOT NULL
+);
+
+-- 2. 오프라인 트랜잭션 및 해시체인 로그 테이블
+CREATE TABLE IF NOT EXISTS offline_transactions (
+    transaction_id TEXT PRIMARY KEY,
+    terminal_id TEXT NOT NULL,
+    unit_id TEXT NOT NULL,
+    nsn_code TEXT NOT NULL,
+    tx_type TEXT NOT NULL CHECK(tx_type IN ('RECEIPT', 'ISSUE', 'TRANSFER', 'DISPOSAL', 'ADJUSTMENT', 'FIELD_CONSUME')),
+    quantity INTEGER NOT NULL CHECK(quantity > 0),
+    stock_after INTEGER NOT NULL CHECK(stock_after >= 0),
+    comms_status TEXT NOT NULL,
+    grid_coords TEXT,
+    weather_condition TEXT,
+    lamport_timestamp INTEGER NOT NULL,
+    timestamp_utc TEXT NOT NULL,
+    prev_hash TEXT NOT NULL,
+    record_hash TEXT NOT NULL,
+    sync_status TEXT DEFAULT 'PENDING' CHECK(sync_status IN ('PENDING', 'SYNCED_P2P', 'SYNCED_CLOUD', 'CONFLICT_LOCKED')),
+    FOREIGN KEY(nsn_code) REFERENCES inventory_items(nsn_code)
+);
+
+-- 3. CRDT 양방향 동기화 및 충돌 큐 테이블
+CREATE TABLE IF NOT EXISTS sync_conflict_queue (
+    conflict_id TEXT PRIMARY KEY,
+    transaction_id TEXT NOT NULL,
+    nsn_code TEXT NOT NULL,
+    local_stock INTEGER NOT NULL,
+    incoming_stock INTEGER NOT NULL,
+    local_clock INTEGER NOT NULL,
+    incoming_clock INTEGER NOT NULL,
+    conflict_reason TEXT NOT NULL,
+    hitl_status TEXT DEFAULT 'PENDING_REVIEW' CHECK(hitl_status IN ('PENDING_REVIEW', 'APPROVED_LOCAL', 'APPROVED_REMOTE', 'MANUAL_MERGED', 'REJECTED')),
+    resolved_by TEXT,
+    resolved_stock INTEGER,
+    resolution_memo TEXT,
+    resolved_at_utc TEXT,
+    FOREIGN KEY(transaction_id) REFERENCES offline_transactions(transaction_id)
+);
+
+-- 4. P2P 피어 단말 정보 테이블
+CREATE TABLE IF NOT EXISTS p2p_peers (
+    peer_terminal_id TEXT PRIMARY KEY,
+    unit_id TEXT NOT NULL,
+    last_known_ip TEXT,
+    last_sync_timestamp TEXT,
+    last_sync_lamport INTEGER DEFAULT 0,
+    trust_score REAL DEFAULT 1.0
+);
+
+-- 5. 공급망 재난 및 이상 징후 알림 테이블
+CREATE TABLE IF NOT EXISTS supply_disaster_alerts (
+    alert_id TEXT PRIMARY KEY,
+    nsn_code TEXT NOT NULL,
+    alert_type TEXT NOT NULL,
+    severity TEXT NOT NULL CHECK(severity IN ('CRITICAL', 'WARNING', 'INFO')),
+    confidence_score REAL NOT NULL,
+    description TEXT NOT NULL,
+    detected_at_utc TEXT NOT NULL,
+    is_acknowledged INTEGER DEFAULT 0
+);
+
+-- 인덱스 생성
+CREATE INDEX IF NOT EXISTS idx_tx_timestamp ON offline_transactions(timestamp_utc);
+CREATE INDEX IF NOT EXISTS idx_tx_nsn ON offline_transactions(nsn_code);
+CREATE INDEX IF NOT EXISTS idx_tx_sync_status ON offline_transactions(sync_status);