落地并存测服全端：智能体 Graph/路由、后台切 8180、主账与部署脚本齐备，便于线上重发与验收。

Co-authored-by: Cursor <cursoragent@cursor.com>

inquiry-agent/migrations/002_dead_letter_v1.sql

@@ -0,0 +1,25 @@
+-- 002_dead_letter_v1.sql
+-- 死信表：失败任务落点（框架壳，不含业务重放逻辑）
+-- 禁止对现网 ytd_runtime 执行。
+
+CREATE TABLE IF NOT EXISTS agent_dead_letter (
+    id              UUID PRIMARY KEY,
+    source          TEXT NOT NULL DEFAULT '',
+    source_id       TEXT NOT NULL DEFAULT '',
+    job_type        TEXT NOT NULL DEFAULT '',
+    payload         JSONB NOT NULL DEFAULT '{}'::jsonb,
+    error           TEXT NOT NULL DEFAULT '',
+    attempts        INT NOT NULL DEFAULT 0,
+    created_at      TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    replayed_at     TIMESTAMPTZ
+);
+
+CREATE INDEX IF NOT EXISTS idx_agent_dead_letter_created
+    ON agent_dead_letter (created_at DESC);
+
+CREATE INDEX IF NOT EXISTS idx_agent_dead_letter_job_type
+    ON agent_dead_letter (job_type, created_at DESC);
+
+INSERT INTO schema_migrations (version, description)
+VALUES ('002_dead_letter_v1', 'agent_dead_letter 死信表壳')
+ON CONFLICT (version) DO NOTHING;