Persist trader V4 P0 decision trace

src/main/java/com/quantai/trader/config/JacksonConfig.java

@@ -0,0 +1,14 @@
+package com.quantai.trader.config;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.json.JsonMapper;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class JacksonConfig {
+    @Bean
+    ObjectMapper traderObjectMapper() {
+        return JsonMapper.builder().findAndAddModules().build();
+    }
+}

src/main/java/com/quantai/trader/enums/TraderErrorCode.java

@@ -11,5 +11,6 @@ public enum TraderErrorCode {
     TRADER_FEEDBACK_INVALID,
     TRADER_P0_MODE_BLOCKED,
     TRADER_KILL_SWITCH_ACTIVE,
-    TRADER_ACTIVE_POINTER_MISMATCH
+    TRADER_ACTIVE_POINTER_MISMATCH,
+    TRADER_PERSISTENCE_FAILED
 }

src/main/java/com/quantai/trader/evidence/EvidenceAppender.java

@@ -6,26 +6,25 @@ import org.slf4j.LoggerFactory;
 import org.springframework.stereotype.Component;
 
 import java.time.Instant;
-import java.util.ArrayList;
-import java.util.List;
 import java.util.Map;
-import java.util.concurrent.CopyOnWriteArrayList;
+import java.util.concurrent.atomic.AtomicLong;
 
 @Component
 public class EvidenceAppender {
     private static final Logger log = LoggerFactory.getLogger(EvidenceAppender.class);
-    private final CopyOnWriteArrayList<TraderEvidence> evidence = new CopyOnWriteArrayList<>();
+    private final AtomicLong sequence = new AtomicLong();
+    private final TraderEvidenceRepository repository;
+
+    public EvidenceAppender(TraderEvidenceRepository repository) {
+        this.repository = repository;
+    }
 
     public TraderEvidence append(String runId, String cycleId, String stage, boolean pass, String reason, String blocker, Map<String, Object> details) {
-        TraderEvidence item = new TraderEvidence("evidence_" + cycleId + "_" + evidence.size(), runId, cycleId,
+        TraderEvidence item = new TraderEvidence("evidence_" + cycleId + "_" + sequence.getAndIncrement(), runId, cycleId,
                 stage, pass, reason, blocker, Instant.now(), details);
-        evidence.add(item);
+        repository.insert(item);
         log.info("event=trader.evidence.appended runId={} cycleId={} stage={} pass={} reason={} blocker={}",
                 runId, cycleId, stage, pass, reason, blocker);
         return item;
     }
-
-    public List<TraderEvidence> all() {
-        return new ArrayList<>(evidence);
-    }
 }

src/main/java/com/quantai/trader/evidence/JdbcTraderEvidenceRepository.java

@@ -0,0 +1,32 @@
+package com.quantai.trader.evidence;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.quantai.trader.domain.TraderEvidence;
+import com.quantai.trader.persistence.TraderJsonCodec;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.stereotype.Repository;
+
+import java.sql.Timestamp;
+
+@Repository
+public class JdbcTraderEvidenceRepository implements TraderEvidenceRepository {
+    private final JdbcTemplate jdbcTemplate;
+    private final TraderJsonCodec jsonCodec;
+
+    public JdbcTraderEvidenceRepository(JdbcTemplate jdbcTemplate, ObjectMapper objectMapper) {
+        this.jdbcTemplate = jdbcTemplate;
+        this.jsonCodec = new TraderJsonCodec(objectMapper);
+    }
+
+    @Override
+    public void insert(TraderEvidence evidence) {
+        jdbcTemplate.update("""
+                        insert into trader_evidence
+                          (run_id, cycle_id, evidence_id, stage, pass, reason, blocker, evidence_time, details_json)
+                        values (?, ?, ?, ?, ?, ?, ?, ?, ?)
+                        """,
+                evidence.runId(), evidence.cycleId(), evidence.evidenceId(), evidence.stage(), evidence.pass(),
+                evidence.reason(), evidence.blocker(), Timestamp.from(evidence.evidenceTime()),
+                jsonCodec.toJson(evidence.detailsJson()));
+    }
+}

src/main/java/com/quantai/trader/evidence/TraderEvidenceRepository.java

@@ -0,0 +1,7 @@
+package com.quantai.trader.evidence;
+
+import com.quantai.trader.domain.TraderEvidence;
+
+public interface TraderEvidenceRepository {
+    void insert(TraderEvidence evidence);
+}

src/main/java/com/quantai/trader/outbox/InMemoryOutboxRepository.java

@@ -1,30 +0,0 @@
-package com.quantai.trader.outbox;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.springframework.stereotype.Repository;
-
-import java.util.ArrayList;
-import java.util.List;
-import java.util.concurrent.CopyOnWriteArrayList;
-
-@Repository
-public class InMemoryOutboxRepository {
-    private static final Logger log = LoggerFactory.getLogger(InMemoryOutboxRepository.class);
-    private final CopyOnWriteArrayList<TraderOutboxEvent> events = new CopyOnWriteArrayList<>();
-
-    public void insert(TraderOutboxEvent event) {
-        boolean duplicate = events.stream().anyMatch(existing -> existing.destination().equals(event.destination())
-                && existing.idempotencyKey().equals(event.idempotencyKey()));
-        if (duplicate) {
-            throw new IllegalArgumentException("duplicate outbox idempotency key: " + event.idempotencyKey());
-        }
-        events.add(event);
-        log.info("event=trader.outbox.inserted runId={} cycleId={} destination={} aggregateType={} aggregateId={} status={}",
-                event.runId(), event.cycleId(), event.destination(), event.aggregateType(), event.aggregateId(), event.status());
-    }
-
-    public List<TraderOutboxEvent> all() {
-        return new ArrayList<>(events);
-    }
-}

src/main/java/com/quantai/trader/outbox/JdbcTraderOutboxRepository.java

@@ -0,0 +1,38 @@
+package com.quantai.trader.outbox;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.quantai.trader.persistence.TraderJsonCodec;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.stereotype.Repository;
+
+import java.sql.Timestamp;
+
+@Repository
+public class JdbcTraderOutboxRepository implements TraderOutboxRepository {
+    private static final Logger log = LoggerFactory.getLogger(JdbcTraderOutboxRepository.class);
+
+    private final JdbcTemplate jdbcTemplate;
+    private final TraderJsonCodec jsonCodec;
+
+    public JdbcTraderOutboxRepository(JdbcTemplate jdbcTemplate, ObjectMapper objectMapper) {
+        this.jdbcTemplate = jdbcTemplate;
+        this.jsonCodec = new TraderJsonCodec(objectMapper);
+    }
+
+    @Override
+    public void insert(TraderOutboxEvent event) {
+        jdbcTemplate.update("""
+                        insert into trader_outbox
+                          (outbox_id, run_id, cycle_id, aggregate_type, aggregate_id, event_type, destination,
+                           payload_json, idempotency_key, status, created_at)
+                        values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+                        """,
+                event.outboxId(), event.runId(), event.cycleId(), event.aggregateType(), event.aggregateId(),
+                event.eventType(), event.destination(), jsonCodec.toJson(event.payloadJson()),
+                event.idempotencyKey(), event.status(), Timestamp.from(event.createdAt()));
+        log.info("event=trader.outbox.inserted runId={} cycleId={} destination={} aggregateType={} aggregateId={} status={}",
+                event.runId(), event.cycleId(), event.destination(), event.aggregateType(), event.aggregateId(), event.status());
+    }
+}

src/main/java/com/quantai/trader/outbox/TraderOutboxRepository.java

@@ -0,0 +1,5 @@
+package com.quantai.trader.outbox;
+
+public interface TraderOutboxRepository {
+    void insert(TraderOutboxEvent event);
+}

src/main/java/com/quantai/trader/persistence/JdbcTraderDecisionTraceWriter.java

@@ -0,0 +1,141 @@
+package com.quantai.trader.persistence;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.quantai.trader.config.TraderProperties;
+import com.quantai.trader.domain.*;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.stereotype.Repository;
+
+import java.sql.Timestamp;
+import java.util.Map;
+
+@Repository
+public class JdbcTraderDecisionTraceWriter implements TraderDecisionTraceWriter {
+    private static final Logger log = LoggerFactory.getLogger(JdbcTraderDecisionTraceWriter.class);
+
+    private final JdbcTemplate jdbcTemplate;
+    private final TraderJsonCodec jsonCodec;
+    private final TraderProperties properties;
+
+    public JdbcTraderDecisionTraceWriter(JdbcTemplate jdbcTemplate, ObjectMapper objectMapper, TraderProperties properties) {
+        this.jdbcTemplate = jdbcTemplate;
+        this.jsonCodec = new TraderJsonCodec(objectMapper);
+        this.properties = properties;
+    }
+
+    @Override
+    public void persistCycleTrace(TraderDecisionCycle cycle,
+                                  TraderMarketSnapshot snapshot,
+                                  TraderModelOutput modelOutput,
+                                  TraderPositionState positionState,
+                                  TraderPositionManagerDecision pmDecision,
+                                  TraderRiskDecision riskDecision,
+                                  TraderAction action) {
+        upsertRun(cycle);
+        insertCycle(cycle, positionState, riskDecision);
+        insertModelOutput(modelOutput, snapshot);
+        insertPmDecision(pmDecision);
+        insertRiskDecision(riskDecision);
+        insertAction(action);
+        log.info("event=trader.trace.persisted runId={} cycleId={} action={} riskAllowed={}",
+                cycle.runId(), cycle.cycleId(), action.actionType(), riskDecision.allowAction());
+    }
+
+    void upsertRun(TraderDecisionCycle cycle) {
+        jdbcTemplate.update("""
+                        insert into trader_run
+                          (run_id, run_mode, symbol, model_bundle_version, calibration_bundle_version,
+                           pm_config_version, execution_mode, status, config_json, started_at)
+                        values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+                        on duplicate key update
+                          model_bundle_version = values(model_bundle_version),
+                          calibration_bundle_version = values(calibration_bundle_version),
+                          pm_config_version = values(pm_config_version),
+                          execution_mode = values(execution_mode),
+                          status = values(status),
+                          updated_at = current_timestamp(3)
+                        """,
+                cycle.runId(), cycle.runMode().name(), cycle.symbol(), cycle.modelBundleVersion(),
+                cycle.calibrationBundleVersion(), cycle.pmConfigVersion(), properties.execution().mode().name(),
+                "RUNNING", jsonCodec.toJson(Map.of(
+                        "serviceName", properties.serviceName(),
+                        "artifactRoot", properties.artifact().artifactRoot(),
+                        "redisKeyPrefix", properties.runtime().redisKeyPrefix())),
+                Timestamp.from(cycle.cycleTime()));
+    }
+
+    void insertCycle(TraderDecisionCycle cycle, TraderPositionState positionState, TraderRiskDecision riskDecision) {
+        jdbcTemplate.update("""
+                        insert into trader_decision_cycle
+                          (run_id, cycle_id, symbol, cycle_time, state, decision_status, blocker)
+                        values (?, ?, ?, ?, ?, ?, ?)
+                        """,
+                cycle.runId(), cycle.cycleId(), cycle.symbol(), Timestamp.from(cycle.cycleTime()),
+                positionState.isFlat() ? "FLAT" : "POSITION",
+                riskDecision.allowAction() ? "ACTION_ALLOWED" : "ACTION_BLOCKED",
+                riskDecision.blocker());
+    }
+
+    void insertModelOutput(TraderModelOutput modelOutput, TraderMarketSnapshot snapshot) {
+        jdbcTemplate.update("""
+                        insert into trader_model_output
+                          (run_id, cycle_id, model_output_id, model_bundle_version, calibration_bundle_version,
+                           direction_json, entry_json, continue_json, exit_json, risk_json,
+                           uncertainty, ood_score, usable, blocker)
+                        values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+                        """,
+                modelOutput.runId(), modelOutput.cycleId(), modelOutput.modelOutputId(),
+                modelOutput.modelBundleVersion(), modelOutput.calibrationBundleVersion(),
+                jsonCodec.toJson(modelOutput.direction()), jsonCodec.toJson(modelOutput.entry()),
+                jsonCodec.toJson(modelOutput.continuation()), jsonCodec.toJson(modelOutput.exit()),
+                jsonCodec.toJson(modelOutput.risk()), modelOutput.uncertainty(), modelOutput.oodScore(),
+                snapshot.dataReady(), snapshot.dataReady() ? null : "DATA_NOT_READY");
+    }
+
+    void insertPmDecision(TraderPositionManagerDecision decision) {
+        jdbcTemplate.update("""
+                        insert into trader_position_manager_decision
+                          (run_id, cycle_id, pm_decision_id, model_output_id, position_state_id, account_state_id,
+                           execution_state_id, candidate_action, side, price_plan_id, price_plan_config_hash,
+                           target_position_ratio, add_ratio, reduce_ratio, stop_price, target_price, reason, decision_json)
+                        values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+                        """,
+                decision.runId(), decision.cycleId(), decision.pmDecisionId(), decision.modelOutputId(),
+                decision.positionStateId(), decision.accountStateId(), decision.executionStateId(),
+                decision.candidateAction().name(), decision.side().name(), decision.pricePlanId(),
+                decision.pricePlanConfigHash(), decision.targetPositionRatio(), decision.addRatio(),
+                decision.reduceRatio(), decision.stopPrice(), decision.targetPrice(), decision.reason(),
+                jsonCodec.toJson(decision.decisionJson()));
+    }
+
+    void insertRiskDecision(TraderRiskDecision decision) {
+        jdbcTemplate.update("""
+                        insert into trader_risk_decision
+                          (run_id, cycle_id, risk_decision_id, pm_decision_id, original_action, final_action,
+                           allow_action, blocker, decision_json)
+                        values (?, ?, ?, ?, ?, ?, ?, ?, ?)
+                        """,
+                decision.runId(), decision.cycleId(), decision.riskDecisionId(), decision.pmDecisionId(),
+                decision.originalAction().name(), decision.finalAction().name(), decision.allowAction(),
+                decision.blocker(), jsonCodec.toJson(decision.decisionJson()));
+    }
+
+    void insertAction(TraderAction action) {
+        jdbcTemplate.update("""
+                        insert into trader_action
+                          (run_id, cycle_id, action_id, model_output_id, pm_decision_id, risk_decision_id,
+                           action_type, symbol, side, price_plan_id, price_plan_config_hash, position_ratio,
+                           quantity, stop_price, target_price, reduce_only, idempotency_key, send_status,
+                           reason, action_context_json)
+                        values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+                        """,
+                action.runId(), action.cycleId(), action.actionId(), action.modelOutputId(),
+                action.pmDecisionId(), action.riskDecisionId(), action.actionType().name(),
+                action.symbol(), action.side().name(), action.pricePlanId(), action.pricePlanConfigHash(),
+                action.positionRatio(), action.quantity(), action.stopPrice(), action.targetPrice(),
+                action.reduceOnly(), action.idempotencyKey(), "PENDING", action.reason(),
+                jsonCodec.toJson(action.actionContextJson()));
+    }
+}

src/main/java/com/quantai/trader/persistence/TraderDecisionTraceWriter.java

@@ -0,0 +1,13 @@
+package com.quantai.trader.persistence;
+
+import com.quantai.trader.domain.*;
+
+public interface TraderDecisionTraceWriter {
+    void persistCycleTrace(TraderDecisionCycle cycle,
+                           TraderMarketSnapshot snapshot,
+                           TraderModelOutput modelOutput,
+                           TraderPositionState positionState,
+                           TraderPositionManagerDecision pmDecision,
+                           TraderRiskDecision riskDecision,
+                           TraderAction action);
+}

src/main/java/com/quantai/trader/persistence/TraderJsonCodec.java

@@ -0,0 +1,23 @@
+package com.quantai.trader.persistence;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.quantai.trader.domain.TraderException;
+import com.quantai.trader.enums.TraderErrorCode;
+
+public class TraderJsonCodec {
+    private final ObjectMapper objectMapper;
+
+    public TraderJsonCodec(ObjectMapper objectMapper) {
+        this.objectMapper = objectMapper;
+    }
+
+    public String toJson(Object value) {
+        try {
+            return objectMapper.writeValueAsString(value);
+        } catch (JsonProcessingException exception) {
+            throw new TraderException(TraderErrorCode.TRADER_PERSISTENCE_FAILED,
+                    "failed to serialize trader persistence payload");
+        }
+    }
+}

src/main/java/com/quantai/trader/replay/TraderP0CycleRunner.java

@@ -7,8 +7,9 @@ import com.quantai.trader.domain.*;
 import com.quantai.trader.enums.PositionSide;
 import com.quantai.trader.evidence.EvidenceAppender;
 import com.quantai.trader.model.TraderModelService;
-import com.quantai.trader.outbox.InMemoryOutboxRepository;
+import com.quantai.trader.outbox.TraderOutboxRepository;
 import com.quantai.trader.outbox.TraderOutboxEvent;
+import com.quantai.trader.persistence.TraderDecisionTraceWriter;
 import com.quantai.trader.position.TraderPositionManager;
 import com.quantai.trader.risk.RiskGateInput;
 import com.quantai.trader.risk.RiskLimits;
@@ -32,7 +33,8 @@ public class TraderP0CycleRunner {
     private final TraderRiskGate riskGate;
     private final TraderActionFactory actionFactory;
     private final EvidenceAppender evidenceAppender;
-    private final InMemoryOutboxRepository outboxRepository;
+    private final TraderDecisionTraceWriter traceWriter;
+    private final TraderOutboxRepository outboxRepository;
 
     public TraderP0CycleRunner(TraderProperties properties,
                                TraderArtifactLoader artifactLoader,
@@ -41,7 +43,8 @@ public class TraderP0CycleRunner {
                                TraderRiskGate riskGate,
                                TraderActionFactory actionFactory,
                                EvidenceAppender evidenceAppender,
-                               InMemoryOutboxRepository outboxRepository) {
+                               TraderDecisionTraceWriter traceWriter,
+                               TraderOutboxRepository outboxRepository) {
         this.properties = properties;
         this.artifactLoader = artifactLoader;
         this.modelService = modelService;
@@ -49,6 +52,7 @@ public class TraderP0CycleRunner {
         this.riskGate = riskGate;
         this.actionFactory = actionFactory;
         this.evidenceAppender = evidenceAppender;
+        this.traceWriter = traceWriter;
         this.outboxRepository = outboxRepository;
     }
 
@@ -69,6 +73,7 @@ public class TraderP0CycleRunner {
                 pmInput.executionState(), snapshot, riskLimits()));
         evidenceAppender.append(cycle.runId(), cycle.cycleId(), "RISK_DECISION", riskDecision.allowAction(), riskDecision.allowAction() ? "RISK_PASS" : riskDecision.blocker(), riskDecision.blocker(), Map.of());
         TraderAction action = actionFactory.create(pmDecision, riskDecision, event.symbol());
+        traceWriter.persistCycleTrace(cycle, snapshot, modelOutput, pmInput.positionState(), pmDecision, riskDecision, action);
         outboxRepository.insert(new TraderOutboxEvent("outbox_" + action.actionId(), action.runId(), action.cycleId(),
                 "TRADER_ACTION", action.actionId(), "ACTION_CREATED", properties.runMode().name() + "_RECORDER",
                 Map.of("actionType", action.actionType().name()), action.idempotencyKey(), "PENDING", Instant.now()));

src/test/java/com/quantai/trader/evidence/EvidenceAppenderTest.java

@@ -3,6 +3,8 @@ package com.quantai.trader.evidence;
 import com.quantai.trader.domain.TraderEvidence;
 import org.junit.jupiter.api.Test;
 
+import java.util.ArrayList;
+import java.util.List;
 import java.util.Map;
 
 import static org.assertj.core.api.Assertions.assertThat;
@@ -10,7 +12,8 @@ import static org.assertj.core.api.Assertions.assertThat;
 class EvidenceAppenderTest {
     @Test
     void appendsEvidenceWithStageReasonAndDetails() {
-        EvidenceAppender appender = new EvidenceAppender();
+        RecordingEvidenceRepository repository = new RecordingEvidenceRepository();
+        EvidenceAppender appender = new EvidenceAppender(repository);
 
         TraderEvidence item = appender.append("run-1", "cycle-1", "PM_DECISION", true,
                 "OPEN_LONG_PM_PASS", null, Map.of("action", "OPEN_LONG"));
@@ -18,6 +21,19 @@ class EvidenceAppenderTest {
         assertThat(item.evidenceId()).isEqualTo("evidence_cycle-1_0");
         assertThat(item.pass()).isTrue();
         assertThat(item.detailsJson()).containsEntry("action", "OPEN_LONG");
-        assertThat(appender.all()).containsExactly(item);
+        assertThat(repository.items()).containsExactly(item);
+    }
+
+    private static final class RecordingEvidenceRepository implements TraderEvidenceRepository {
+        private final List<TraderEvidence> items = new ArrayList<>();
+
+        @Override
+        public void insert(TraderEvidence evidence) {
+            items.add(evidence);
+        }
+
+        List<TraderEvidence> items() {
+            return items;
+        }
     }
 }

src/test/java/com/quantai/trader/outbox/InMemoryOutboxRepositoryTest.java

@@ -1,40 +0,0 @@
-package com.quantai.trader.outbox;
-
-import org.junit.jupiter.api.Test;
-
-import java.time.Instant;
-import java.util.Map;
-
-import static org.assertj.core.api.Assertions.assertThat;
-import static org.assertj.core.api.Assertions.assertThatThrownBy;
-
-class InMemoryOutboxRepositoryTest {
-    @Test
-    void rejectsDuplicateDestinationAndIdempotencyKey() {
-        InMemoryOutboxRepository repository = new InMemoryOutboxRepository();
-        TraderOutboxEvent event = event("outbox-1", "SHADOW_RECORDER", "idem-1");
-
-        repository.insert(event);
-
-        assertThatThrownBy(() -> repository.insert(event("outbox-2", "SHADOW_RECORDER", "idem-1")))
-                .isInstanceOf(IllegalArgumentException.class)
-                .hasMessageContaining("duplicate outbox idempotency key");
-        assertThat(repository.all()).containsExactly(event);
-    }
-
-    @Test
-    void allowsSameIdempotencyKeyForDifferentDestination() {
-        InMemoryOutboxRepository repository = new InMemoryOutboxRepository();
-
-        repository.insert(event("outbox-1", "REPLAY_SIM_RECORDER", "idem-1"));
-        repository.insert(event("outbox-2", "SHADOW_RECORDER", "idem-1"));
-
-        assertThat(repository.all()).hasSize(2);
-    }
-
-    private TraderOutboxEvent event(String id, String destination, String idempotencyKey) {
-        return new TraderOutboxEvent(id, "run-1", "cycle-1", "TRADER_ACTION", "action-1",
-                "ACTION_CREATED", destination, Map.of("actionType", "OPEN_LONG"), idempotencyKey,
-                "PENDING", Instant.parse("2026-06-26T00:00:00Z"));
-    }
-}

src/test/java/com/quantai/trader/outbox/JdbcTraderOutboxRepositoryTest.java

@@ -0,0 +1,28 @@
+package com.quantai.trader.outbox;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.junit.jupiter.api.Test;
+import org.springframework.jdbc.core.JdbcTemplate;
+
+import java.time.Instant;
+import java.util.Map;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.contains;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+
+class JdbcTraderOutboxRepositoryTest {
+    @Test
+    void insertsOutboxEventThroughJdbcRepository() {
+        JdbcTemplate jdbcTemplate = mock(JdbcTemplate.class);
+        JdbcTraderOutboxRepository repository = new JdbcTraderOutboxRepository(jdbcTemplate, new ObjectMapper());
+
+        repository.insert(new TraderOutboxEvent("outbox-1", "run-1", "cycle-1",
+                "TRADER_ACTION", "action-1", "ACTION_CREATED", "SHADOW_RECORDER",
+                Map.of("actionType", "OPEN_LONG"), "idem-1", "PENDING",
+                Instant.parse("2026-06-26T00:00:00Z")));
+
+        verify(jdbcTemplate).update(contains("insert into trader_outbox"), any(Object[].class));
+    }
+}

src/test/java/com/quantai/trader/persistence/JdbcTraderDecisionTraceWriterTest.java

@@ -0,0 +1,34 @@
+package com.quantai.trader.persistence;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.quantai.trader.domain.TraderActionFactory;
+import com.quantai.trader.domain.TraderRiskDecision;
+import com.quantai.trader.enums.PositionSide;
+import com.quantai.trader.enums.TraderActionType;
+import org.junit.jupiter.api.Test;
+import org.springframework.jdbc.core.JdbcTemplate;
+
+import java.util.Map;
+
+import static com.quantai.trader.TestFixtures.*;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+class JdbcTraderDecisionTraceWriterTest {
+    @Test
+    void persistsRunCycleModelPmRiskAndActionTrace() {
+        JdbcTemplate jdbcTemplate = mock(JdbcTemplate.class);
+        JdbcTraderDecisionTraceWriter writer = new JdbcTraderDecisionTraceWriter(jdbcTemplate, new ObjectMapper(), properties());
+        TraderRiskDecision riskDecision = new TraderRiskDecision("risk-1", "run-1", "cycle-1",
+                "pm-cycle-1", true, TraderActionType.OPEN_LONG, TraderActionType.OPEN_LONG, null, Map.of());
+        var action = new TraderActionFactory().create(pmDecision(TraderActionType.OPEN_LONG, PositionSide.LONG), riskDecision, "BTC-USDT-PERP");
+
+        writer.persistCycleTrace(cycle(), snapshot(), modelOutput(), flatPosition(),
+                pmDecision(TraderActionType.OPEN_LONG, PositionSide.LONG), riskDecision, action);
+
+        verify(jdbcTemplate, times(6)).update(anyString(), any(Object[].class));
+    }
+}

src/test/java/com/quantai/trader/replay/TraderP0CycleRunnerTest.java

@@ -1,15 +1,20 @@
 package com.quantai.trader.replay;
 
 import com.quantai.trader.artifact.TraderArtifactLoader;
-import com.quantai.trader.domain.TraderActionFactory;
+import com.quantai.trader.domain.*;
 import com.quantai.trader.enums.TraderActionType;
 import com.quantai.trader.evidence.EvidenceAppender;
+import com.quantai.trader.evidence.TraderEvidenceRepository;
 import com.quantai.trader.model.DeterministicTraderModelService;
-import com.quantai.trader.outbox.InMemoryOutboxRepository;
+import com.quantai.trader.outbox.TraderOutboxEvent;
+import com.quantai.trader.outbox.TraderOutboxRepository;
+import com.quantai.trader.persistence.TraderDecisionTraceWriter;
 import com.quantai.trader.position.TraderPositionManager;
 import com.quantai.trader.risk.TraderRiskGate;
 import org.junit.jupiter.api.Test;
 
+import java.util.ArrayList;
+import java.util.List;
 import java.math.BigDecimal;
 
 import static com.quantai.trader.TestFixtures.T0;
@@ -19,8 +24,10 @@ import static org.assertj.core.api.Assertions.assertThat;
 class TraderP0CycleRunnerTest {
     @Test
     void runsReplayShadowCycleThroughModelPmRiskActionOutboxAndEvidence() {
-        EvidenceAppender evidenceAppender = new EvidenceAppender();
+        RecordingEvidenceRepository evidenceRepository = new RecordingEvidenceRepository();
-        InMemoryOutboxRepository outboxRepository = new InMemoryOutboxRepository();
+        EvidenceAppender evidenceAppender = new EvidenceAppender(evidenceRepository);
+        RecordingTraceWriter traceWriter = new RecordingTraceWriter();
+        RecordingOutboxRepository outboxRepository = new RecordingOutboxRepository();
         TraderP0CycleRunner runner = new TraderP0CycleRunner(
                 properties(),
                 new TraderArtifactLoader(properties()),
@@ -29,6 +36,7 @@ class TraderP0CycleRunnerTest {
                 new TraderRiskGate(),
                 new TraderActionFactory(),
                 evidenceAppender,
+                traceWriter,
                 outboxRepository);
 
         TraderCycleResult result = runner.runFlatCycle(new ReplayMarketEvent(
@@ -37,16 +45,19 @@ class TraderP0CycleRunnerTest {
 
         assertThat(result.action().actionType()).isEqualTo(TraderActionType.OPEN_LONG);
         assertThat(result.action().reduceOnly()).isFalse();
-        assertThat(outboxRepository.all()).hasSize(1);
+        assertThat(traceWriter.actions()).containsExactly(result.action());
-        assertThat(outboxRepository.all().getFirst().destination()).isEqualTo("SHADOW_RECORDER");
+        assertThat(outboxRepository.events()).hasSize(1);
-        assertThat(evidenceAppender.all()).extracting("stage")
+        assertThat(outboxRepository.events().getFirst().destination()).isEqualTo("SHADOW_RECORDER");
+        assertThat(evidenceRepository.items()).extracting("stage")
                 .containsExactly("MARKET_SNAPSHOT", "MODEL_OUTPUT", "PM_DECISION", "RISK_DECISION");
     }
 
     @Test
     void recordsWaitActionWhenReplaySnapshotHasNoLiquidity() {
-        EvidenceAppender evidenceAppender = new EvidenceAppender();
+        RecordingEvidenceRepository evidenceRepository = new RecordingEvidenceRepository();
-        InMemoryOutboxRepository outboxRepository = new InMemoryOutboxRepository();
+        EvidenceAppender evidenceAppender = new EvidenceAppender(evidenceRepository);
+        RecordingTraceWriter traceWriter = new RecordingTraceWriter();
+        RecordingOutboxRepository outboxRepository = new RecordingOutboxRepository();
         TraderP0CycleRunner runner = new TraderP0CycleRunner(
                 properties(),
                 new TraderArtifactLoader(properties()),
@@ -55,6 +66,7 @@ class TraderP0CycleRunnerTest {
                 new TraderRiskGate(),
                 new TraderActionFactory(),
                 evidenceAppender,
+                traceWriter,
                 outboxRepository);
 
         TraderCycleResult result = runner.runFlatCycle(new ReplayMarketEvent(
@@ -63,6 +75,49 @@ class TraderP0CycleRunnerTest {
 
         assertThat(result.action().actionType()).isEqualTo(TraderActionType.WAIT);
         assertThat(result.action().pricePlanId()).isNull();
-        assertThat(outboxRepository.all()).hasSize(1);
+        assertThat(traceWriter.actions()).containsExactly(result.action());
+        assertThat(outboxRepository.events()).hasSize(1);
+        assertThat(evidenceRepository.items()).hasSize(4);
+    }
+
+    private static final class RecordingEvidenceRepository implements TraderEvidenceRepository {
+        private final List<TraderEvidence> items = new ArrayList<>();
+
+        @Override
+        public void insert(TraderEvidence evidence) {
+            items.add(evidence);
+        }
+
+        List<TraderEvidence> items() {
+            return items;
+        }
+    }
+
+    private static final class RecordingOutboxRepository implements TraderOutboxRepository {
+        private final List<TraderOutboxEvent> events = new ArrayList<>();
+
+        @Override
+        public void insert(TraderOutboxEvent event) {
+            events.add(event);
+        }
+
+        List<TraderOutboxEvent> events() {
+            return events;
+        }
+    }
+
+    private static final class RecordingTraceWriter implements TraderDecisionTraceWriter {
+        private final List<TraderAction> actions = new ArrayList<>();
+
+        @Override
+        public void persistCycleTrace(TraderDecisionCycle cycle, TraderMarketSnapshot snapshot, TraderModelOutput modelOutput,
+                                      TraderPositionState positionState, TraderPositionManagerDecision pmDecision,
+                                      TraderRiskDecision riskDecision, TraderAction action) {
+            actions.add(action);
+        }
+
+        List<TraderAction> actions() {
+            return actions;
+        }
     }
 }