feat: add durable store conformance harness

migrations/postgres/0001_user_engine_store.sql

@@ -0,0 +1,78 @@
+-- USER-WP-0016 durable-store bootstrap for provider-backed Postgres adapters.
+-- Provider repositories may apply this file directly or translate it into
+-- their migration framework while preserving the table semantics.
+
+CREATE TABLE IF NOT EXISTS user_engine_schema_versions (
+    version text PRIMARY KEY,
+    name text NOT NULL,
+    applied_at timestamptz NOT NULL DEFAULT now(),
+    checksum text
+);
+
+CREATE TABLE IF NOT EXISTS user_engine_records (
+    record_type text NOT NULL,
+    record_key text NOT NULL,
+    tenant text,
+    user_id text,
+    application_id text,
+    scope_type text,
+    scope_id text,
+    payload jsonb NOT NULL,
+    created_at timestamptz NOT NULL DEFAULT now(),
+    updated_at timestamptz NOT NULL DEFAULT now(),
+    PRIMARY KEY (record_type, record_key)
+);
+
+CREATE INDEX IF NOT EXISTS user_engine_records_tenant_idx
+    ON user_engine_records (tenant, record_type);
+
+CREATE INDEX IF NOT EXISTS user_engine_records_user_idx
+    ON user_engine_records (user_id, record_type);
+
+CREATE INDEX IF NOT EXISTS user_engine_records_application_idx
+    ON user_engine_records (application_id, record_type);
+
+CREATE INDEX IF NOT EXISTS user_engine_records_scope_idx
+    ON user_engine_records (scope_type, scope_id, record_type);
+
+CREATE TABLE IF NOT EXISTS user_engine_audit_records (
+    audit_id text PRIMARY KEY,
+    tenant text NOT NULL,
+    actor_issuer text NOT NULL,
+    actor_subject text NOT NULL,
+    action text NOT NULL,
+    subject text NOT NULL,
+    correlation_id text NOT NULL,
+    summary text,
+    payload jsonb NOT NULL,
+    recorded_at timestamptz NOT NULL DEFAULT now()
+);
+
+CREATE INDEX IF NOT EXISTS user_engine_audit_records_tenant_idx
+    ON user_engine_audit_records (tenant, recorded_at);
+
+CREATE INDEX IF NOT EXISTS user_engine_audit_records_subject_idx
+    ON user_engine_audit_records (subject, recorded_at);
+
+CREATE TABLE IF NOT EXISTS user_engine_outbox_events (
+    event_id text PRIMARY KEY,
+    tenant text NOT NULL,
+    event_type text NOT NULL,
+    aggregate_id text NOT NULL,
+    correlation_id text NOT NULL,
+    payload jsonb NOT NULL,
+    occurred_at timestamptz NOT NULL DEFAULT now(),
+    claimed_at timestamptz,
+    claimed_by text,
+    delivered_at timestamptz,
+    failed_at timestamptz,
+    failure_reason text
+);
+
+CREATE INDEX IF NOT EXISTS user_engine_outbox_events_pending_idx
+    ON user_engine_outbox_events (occurred_at)
+    WHERE claimed_at IS NULL AND delivered_at IS NULL;
+
+INSERT INTO user_engine_schema_versions (version, name)
+VALUES ('0001_initial', 'initial durable store')
+ON CONFLICT (version) DO NOTHING;