// IIOS Interaction Kernel — P1 schema (native portal only).
// Lifted from the Bottom-Up Evolution Atlas §10 kernel DDL. ONLY kernel tables:
// no support / inbox / route / AI tables (those are earned in later phases).

generator client {
  provider = "prisma-client-js"
}

datasource db {
  provider = "postgresql"
  url      = env("DATABASE_URL")
}

// ─── Enums (one value per line) ───────────────────────────────────
enum IiosActorKind {
  HUMAN
  AI
  SERVICE
  BOT
  UNKNOWN
}

enum IiosHandleKind {
  PORTAL_USER
  EMAIL
  PHONE
  WHATSAPP
  SLACK
  MATTERMOST
  TELEGRAM
  EXTERNAL_VISITOR
}

enum IiosInteractionKind {
  MESSAGE
  EMAIL
  SYSTEM_NOTICE
  INBOX_WORK
  SUPPORT_CASE
  MEETING_REQUEST
  DIGEST
  SUMMARY
  NOTIFICATION
}

enum IiosMessagePartKind {
  TEXT
  HTML
  MARKDOWN
  MEDIA_REF
  FILE_REF
  VOICE_REF
  LOCATION
  STRUCTURED_JSON
}

enum IiosDeliveryState {
  RECEIVED
  NORMALIZED
  POLICY_HELD
  STORED
  DELIVERED
  READ
  FAILED
  DELETED_LOCAL
  REDACTED
}

enum IiosReceiptKind {
  DELIVERED
  READ
  ACKED
  FAILED
  SUPPRESSED
  RATE_LIMITED
}

enum IiosInboxItemKind {
  NEEDS_REPLY
  NEEDS_REVIEW
  NEEDS_APPROVAL
  SUPPORT_UPDATE
  MEETING_FOLLOWUP
  DIGEST
  SYSTEM_ALERT
  CRM_OWNER_INTEREST
}

enum IiosInboxState {
  OPEN
  SNOOZED
  DONE
  ARCHIVED
  CANCELLED
  STALE
}

enum IiosTicketState {
  NEW
  OPEN
  PENDING_CUSTOMER
  PENDING_INTERNAL
  RESOLVED
  CLOSED
  CANCELLED
}

enum IiosTicketPriority {
  P0
  P1
  P2
  P3
  P4
}

enum IiosCallbackStatus {
  PENDING
  SCHEDULED
  COMPLETED
  MISSED
  CANCELLED
}

enum IiosRouteMode {
  MANUAL
  AUTOMATIC
  HYBRID
  SIMULATION_ONLY
}

enum IiosOutputFormat {
  FORWARD
  THREADED
  DIGEST
  SUMMARY
  TRANSCRIPT
}

enum IiosRouteDecisionState {
  ALLOW
  DENY
  REVIEW
  SUPPRESS
  SIMULATED
}

// ─── AI enums (P7) ────────────────────────────────────────────────

enum IiosAiJobType {
  CLASSIFY
  SUMMARIZE
  EXTRACT
}

enum IiosAiJobStatus {
  PENDING
  RUNNING
  DONE
  FAILED
  ABSTAINED
}

enum IiosAiArtifactType {
  CLASSIFICATION
  SUMMARY
  TRANSCRIPT
  DIGEST
  EXTRACTION
}

enum IiosAiArtifactStatus {
  PROPOSED
  ACCEPTED
  REJECTED
  SUPERSEDED
}

enum IiosAiClaimType {
  MODERATION_FLAG
  EVENT
  FAQ
  INTENT
  PRIORITY
}

enum IiosAiClaimValidation {
  UNVALIDATED
  ACCEPTED
  REJECTED
}

// ─── Kernel tables ────────────────────────────────────────────────

/// Frozen six-vector scope. orgId + appId are REQUIRED (no global-by-null).
model IiosScope {
  id          String   @id @default(cuid())
  orgId       String
  appId       String
  buId        String?
  tenantId    String?
  workspaceId String?
  projectId   String?
  userScopeId String?
  createdAt   DateTime @default(now())

  sourceHandles IiosSourceHandle[]
  channels      IiosChannel[]
  threads       IiosThread[]
  interactions  IiosInteraction[]
  inboxItems    IiosInboxItem[]
  supportQueues IiosSupportQueue[]
  tickets       IiosTicket[]
  callbacks     IiosCallbackRequest[]

  @@index([orgId, appId, tenantId])
}

/// A channel-specific handle (phone/email/portal user). NOT identity — stays
/// UNVERIFIED until MDM resolves it; no silent merge.
model IiosSourceHandle {
  id                String         @id @default(cuid())
  scopeId           String
  scope             IiosScope      @relation(fields: [scopeId], references: [id], onDelete: Cascade)
  kind              IiosHandleKind
  externalId        String
  displayName       String?
  canonicalEntityId String? // set only when MDM resolves; null = unresolved
  confidence        Float          @default(0)
  verificationState String         @default("UNVERIFIED")
  firstSeenAt       DateTime       @default(now())
  lastSeenAt        DateTime       @default(now())
  metadata          Json?

  actors IiosActorRef[]

  @@unique([scopeId, kind, externalId])
  @@index([canonicalEntityId])
}

/// The local actor (human / AI / service / unknown) behind an interaction.
model IiosActorRef {
  id                  String           @id @default(cuid())
  kind                IiosActorKind
  sourceHandleId      String?
  sourceHandle        IiosSourceHandle? @relation(fields: [sourceHandleId], references: [id])
  platformPrincipalRef String?
  canonicalEntityId   String?
  displayName         String?
  createdAt           DateTime         @default(now())

  threadsCreated     IiosThread[]            @relation("ThreadCreatedBy")
  participations     IiosThreadParticipant[]
  interactions       IiosInteraction[]
  receipts           IiosMessageReceipt[]
  unreadCounters     IiosUnreadCounter[]
  inboxItemsOwned    IiosInboxItem[]
  teamMemberships    IiosSupportTeamMember[]
  ticketsRequested   IiosTicket[]            @relation("TicketRequester")
  ticketsAssigned    IiosTicket[]            @relation("TicketAssignee")
  callbacksRequested IiosCallbackRequest[]
}

/// A configured channel surface (PORTAL in P1).
model IiosChannel {
  id                 String   @id @default(cuid())
  scopeId            String
  scope              IiosScope @relation(fields: [scopeId], references: [id], onDelete: Cascade)
  channelType        String
  channelName        String
  direction          String   @default("BOTH")
  capabilityContract Json?
  externalRef        String?
  enabled            Boolean  @default(true)
  createdAt          DateTime @default(now())

  threads      IiosThread[]
  interactions IiosInteraction[]

  @@index([scopeId, channelType])
}

/// A conversation/thread on a channel.
model IiosThread {
  id               String    @id @default(cuid())
  scopeId          String
  scope            IiosScope @relation(fields: [scopeId], references: [id], onDelete: Cascade)
  channelId        String?
  channel          IiosChannel? @relation(fields: [channelId], references: [id])
  threadKind       String    @default("CONVERSATION")
  subject          String?
  externalThreadRef String?
  status           String    @default("OPEN")
  visibilityClass  String    @default("PRIVATE")
  createdByActorId String?
  createdByActor   IiosActorRef? @relation("ThreadCreatedBy", fields: [createdByActorId], references: [id])
  createdAt        DateTime  @default(now())
  updatedAt        DateTime  @updatedAt
  metadata         Json?

  participants   IiosThreadParticipant[]
  interactions   IiosInteraction[]
  unreadCounters IiosUnreadCounter[]
  inboxItems     IiosInboxItem[]
  ticketLinks    IiosTicketThreadLink[]

  @@index([scopeId, status])
}

model IiosThreadParticipant {
  threadId        String
  thread          IiosThread   @relation(fields: [threadId], references: [id], onDelete: Cascade)
  actorId         String
  actor           IiosActorRef @relation(fields: [actorId], references: [id])
  participantRole String       @default("MEMBER")
  joinedAt        DateTime     @default(now())
  leftAt          DateTime?

  @@id([threadId, actorId])
}

/// The semantic envelope. Idempotent per (scope, idempotencyKey).
model IiosInteraction {
  id                  String              @id @default(cuid())
  scopeId             String
  scope               IiosScope           @relation(fields: [scopeId], references: [id], onDelete: Cascade)
  kind                IiosInteractionKind
  threadId            String?
  thread              IiosThread?         @relation(fields: [threadId], references: [id])
  channelId           String?
  channel             IiosChannel?        @relation(fields: [channelId], references: [id])
  actorId             String?
  actor               IiosActorRef?       @relation(fields: [actorId], references: [id])
  parentInteractionId String?
  parent              IiosInteraction?    @relation("InteractionParent", fields: [parentInteractionId], references: [id])
  children            IiosInteraction[]   @relation("InteractionParent")
  externalId          String?
  idempotencyKey      String
  occurredAt          DateTime            @default(now())
  receivedAt          DateTime            @default(now())
  status              IiosDeliveryState   @default(RECEIVED)
  policyDecisionRef   String?
  consentReceiptRef   String?
  crreBundleRef       String?
  traceId             String?
  metadata            Json?

  parts             IiosMessagePart[]
  receipts          IiosMessageReceipt[]
  inboxItems        IiosInboxItem[]
  ticketsCreatedFrom IiosTicket[]

  @@unique([scopeId, idempotencyKey])
  @@index([threadId, occurredAt])
}

model IiosMessagePart {
  id             String              @id @default(cuid())
  interactionId  String
  interaction    IiosInteraction     @relation(fields: [interactionId], references: [id], onDelete: Cascade)
  partIndex      Int
  kind           IiosMessagePartKind
  bodyText       String?
  contentRef     String?
  mimeType       String?
  sizeBytes      BigInt?
  checksumSha256 String?
  metadata       Json?

  @@unique([interactionId, partIndex])
}

/// Transactional outbox — written in the same tx as the business row.
model IiosOutboxEvent {
  eventId       String    @id @default(cuid())
  aggregateType String
  aggregateId   String
  eventType     String
  cloudEvent    Json
  partitionKey  String
  status        String    @default("PENDING")
  attempts      Int       @default(0)
  nextAttemptAt DateTime  @default(now())
  createdAt     DateTime  @default(now())
  publishedAt   DateTime?

  @@index([status, nextAttemptAt, createdAt])
}

/// Idempotent-consumer ledger for the outbox relay / downstream consumers.
model IiosProcessedEvent {
  consumerName String
  eventId      String
  processedAt  DateTime @default(now())
  resultHash   String?

  @@id([consumerName, eventId])
}

// ─── P2: messaging — receipts & unread ────────────────────────────

/// Delivery/read receipt for a message interaction, per actor.
model IiosMessageReceipt {
  id                String          @id @default(cuid())
  interactionId     String
  interaction       IiosInteraction @relation(fields: [interactionId], references: [id], onDelete: Cascade)
  actorId           String?
  actor             IiosActorRef?   @relation(fields: [actorId], references: [id])
  receiptKind       IiosReceiptKind
  occurredAt        DateTime        @default(now())
  providerReceiptRef String?
  metadata          Json?

  @@unique([interactionId, actorId, receiptKind])
  @@index([interactionId])
}

/// Per-(thread, actor) unread count + last-read marker.
model IiosUnreadCounter {
  threadId             String
  thread               IiosThread       @relation(fields: [threadId], references: [id], onDelete: Cascade)
  actorId              String
  actor                IiosActorRef     @relation(fields: [actorId], references: [id])
  unreadCount          Int              @default(0)
  lastReadInteractionId String?
  updatedAt            DateTime         @updatedAt

  @@id([threadId, actorId])
}

// ─── P3: Inbox (work/awareness surface) ───────────────────────────

/// A durable action/awareness item owned by one actor. Fed by the event
/// projector (deterministic, collapse-per-thread). NOT a thin unread projection.
model IiosInboxItem {
  id                  String            @id @default(cuid())
  scopeId             String
  scope               IiosScope         @relation(fields: [scopeId], references: [id], onDelete: Cascade)
  ownerActorId        String
  ownerActor          IiosActorRef      @relation(fields: [ownerActorId], references: [id])
  kind                IiosInboxItemKind
  state               IiosInboxState    @default(OPEN)
  title               String
  summary             String?
  priority            String            @default("NORMAL")
  dueAt               DateTime?
  sourceInteractionId String?
  sourceInteraction   IiosInteraction?  @relation(fields: [sourceInteractionId], references: [id])
  threadId            String?
  thread              IiosThread?       @relation(fields: [threadId], references: [id])
  traceId             String?
  actionRef           Json?
  policyDecisionRef   String?
  createdAt           DateTime          @default(now())
  updatedAt           DateTime          @updatedAt
  metadata            Json?

  stateHistory IiosInboxItemStateHistory[]

  @@index([ownerActorId, state, priority])
}

/// Audit trail of inbox-item state transitions.
model IiosInboxItemStateHistory {
  id          String          @id @default(cuid())
  inboxItemId String
  inboxItem   IiosInboxItem   @relation(fields: [inboxItemId], references: [id], onDelete: Cascade)
  fromState   IiosInboxState?
  toState     IiosInboxState
  actorId     String?
  reasonCode  String?
  at          DateTime        @default(now())

  @@index([inboxItemId])
}

// ─── P4: Support (specialization over message + inbox) ────────────

/// A support queue; agents (team members) are assigned tickets from it.
model IiosSupportQueue {
  id               String    @id @default(cuid())
  scopeId          String
  scope            IiosScope @relation(fields: [scopeId], references: [id], onDelete: Cascade)
  name             String
  supportTier      String    @default("REGULAR")
  slaPolicyRef     String? // SLA placeholder (no timer logic until P7)
  assignmentPolicy Json?
  enabled          Boolean   @default(true)
  createdAt        DateTime  @default(now())

  members IiosSupportTeamMember[]
  tickets IiosTicket[]

  @@index([scopeId])
}

/// An agent's membership + capacity in a queue. Agent = an ActorRef that is a member.
model IiosSupportTeamMember {
  queueId           String
  queue             IiosSupportQueue @relation(fields: [queueId], references: [id], onDelete: Cascade)
  actorId           String
  actor             IiosActorRef     @relation(fields: [actorId], references: [id])
  role              String           @default("AGENT")
  maxActive         Int              @default(3)
  activeCount       Int              @default(0)
  availabilityState String           @default("OFFLINE")

  @@id([queueId, actorId])
  @@index([actorId])
}

/// Support work object. Linked many-to-many to threads; the thread stays generic.
model IiosTicket {
  id                      String             @id @default(cuid())
  scopeId                 String
  scope                   IiosScope          @relation(fields: [scopeId], references: [id], onDelete: Cascade)
  queueId                 String?
  queue                   IiosSupportQueue?  @relation(fields: [queueId], references: [id])
  requesterActorId        String?
  requesterActor          IiosActorRef?      @relation("TicketRequester", fields: [requesterActorId], references: [id])
  assignedActorId         String?
  assignedActor           IiosActorRef?      @relation("TicketAssignee", fields: [assignedActorId], references: [id])
  subject                 String
  state                   IiosTicketState    @default(NEW)
  priority                IiosTicketPriority @default(P3)
  issueClass              String?
  issueSubclass           String?
  slaDueAt                DateTime? // SLA placeholder (no timer logic until P7)
  createdFromInteractionId String?
  createdFromInteraction  IiosInteraction?   @relation(fields: [createdFromInteractionId], references: [id])
  traceId                 String?
  createdAt               DateTime           @default(now())
  updatedAt               DateTime           @updatedAt
  metadata                Json?

  threadLinks  IiosTicketThreadLink[]
  stateHistory IiosTicketStateHistory[]
  callbacks    IiosCallbackRequest[]

  @@index([scopeId, state])
  @@index([assignedActorId, state])
}

/// M:N link between tickets and kernel threads (one thread ↔ many tickets, and vice-versa).
model IiosTicketThreadLink {
  ticketId     String
  ticket       IiosTicket @relation(fields: [ticketId], references: [id], onDelete: Cascade)
  threadId     String
  thread       IiosThread @relation(fields: [threadId], references: [id], onDelete: Cascade)
  relationKind String     @default("PRIMARY")
  linkedAt     DateTime   @default(now())

  @@id([ticketId, threadId])
  @@index([threadId])
}

/// Ticket state-transition audit.
model IiosTicketStateHistory {
  id         String           @id @default(cuid())
  ticketId   String
  ticket     IiosTicket       @relation(fields: [ticketId], references: [id], onDelete: Cascade)
  fromState  IiosTicketState?
  toState    IiosTicketState
  actorId    String?
  reasonCode String?
  at         DateTime         @default(now())

  @@index([ticketId])
}

/// Callback request placeholder (the Meeting module is P8; meetingRef is a stub).
model IiosCallbackRequest {
  id               String             @id @default(cuid())
  scopeId          String
  scope            IiosScope          @relation(fields: [scopeId], references: [id], onDelete: Cascade)
  ticketId         String?
  ticket           IiosTicket?        @relation(fields: [ticketId], references: [id])
  requesterActorId String
  requesterActor   IiosActorRef       @relation(fields: [requesterActorId], references: [id])
  preferChannel    String
  preferredTime    DateTime?
  notes            String?
  status           IiosCallbackStatus @default(PENDING)
  meetingRef       String?
  createdAt        DateTime           @default(now())

  @@index([scopeId, status])
}

// ─── P5: Adapters (anti-corruption layer, simulation mode) ────────

/// Raw inbound provider payload (claim-check / replay). Verified before storing.
model IiosInboundRawEvent {
  id              String   @id @default(cuid())
  channelType     String
  externalEventId String?
  signatureStatus String // VERIFIED | INVALID | UNSIGNED
  status          String   @default("RECEIVED") // RECEIVED | NORMALIZED | REJECTED | FAILED
  headers         Json?
  payload         Json
  traceId         String?
  interactionId   String?
  createdAt       DateTime @default(now())

  @@unique([channelType, externalEventId])
  @@index([status])
}

/// A signed command to send on an external channel — executed by the sandbox sink.
model IiosOutboundCommand {
  id             String                @id @default(cuid())
  channelType    String
  target         String
  payload        Json
  status         String                @default("PENDING") // PENDING | SENT | FAILED | RATE_LIMITED
  idempotencyKey String                @unique
  providerRef    String?
  createdAt      DateTime              @default(now())

  attempts IiosDeliveryAttempt[]

  @@index([channelType, status])
}

model IiosDeliveryAttempt {
  id          String              @id @default(cuid())
  commandId   String
  command     IiosOutboundCommand @relation(fields: [commandId], references: [id], onDelete: Cascade)
  attemptNo   Int
  status      String
  providerRef String?
  latencyMs   Int?
  errorCode   String?
  at          DateTime            @default(now())

  @@index([commandId])
}

/// Per-(channelType, key) token/window bucket for outbound throttling.
model IiosRateLimitBucket {
  channelType String
  bucketKey   String
  windowStart DateTime @default(now())
  count       Int      @default(0)
  resetAt     DateTime

  @@id([channelType, bucketKey])
}

// ─── P6: Routing (preview-first community forwarding) ──────────────

/// One origin→destination route rule. Preview-first: SIMULATION_ONLY + disabled
/// + requiresReview by default. Restricted destinations are deny-by-default.
model IiosRouteBinding {
  id                    String           @id @default(cuid())
  scopeId               String
  originChannelType     String
  originRef             String?
  destinationChannelType String
  destinationRef        String?
  restrictionProfile    String? // e.g. CHILD / SENIORS / ADULT / PUBLIC
  mode                  IiosRouteMode    @default(SIMULATION_ONLY)
  outputFormat          IiosOutputFormat @default(FORWARD)
  frequency             String           @default("IMMEDIATE")
  includeAttachments    Boolean          @default(false)
  requiresReview        Boolean          @default(true)
  rulepackVersion       String           @default("v1")
  enabled               Boolean          @default(false)
  createdAt             DateTime         @default(now())

  decisions IiosRouteDecision[]

  @@index([scopeId, originChannelType])
}

/// Per-(interaction, binding) routing decision + rendered preview. No send during simulation.
model IiosRouteDecision {
  id                String                @id @default(cuid())
  interactionId     String
  routeBindingId    String
  routeBinding      IiosRouteBinding      @relation(fields: [routeBindingId], references: [id], onDelete: Cascade)
  decisionState     IiosRouteDecisionState
  reasonCodes       String[]
  previewPayload    Json
  outputFormat      IiosOutputFormat
  rulepackVersion   String
  simulationId      String?
  decidedByActorId  String?
  executed          Boolean               @default(false)
  executedCommandId String?
  createdAt         DateTime              @default(now())

  @@unique([interactionId, routeBindingId])
  @@index([decisionState])
}

/// A deterministic (RULE) or later AI-proposed flag on an interaction. AI can
/// propose but never allow a route (P7).
model IiosModerationFlag {
  id            String   @id @default(cuid())
  interactionId String
  flagType      String
  severity      String   @default("LOW")
  proposedBy    String   @default("RULE")
  confidence    Float?
  explanation   String?
  createdAt     DateTime @default(now())
  resolvedAt    DateTime?

  @@index([interactionId])
}

// ─── AI Interaction SDK tables (P7) — proposal layer, never decides ─────────

/// A scoped, purposed AI work order (classify / summarize / extract). Carries the
/// provenance the critics mandate (input_scope_hash, policy_decision_id, purpose,
/// replay_version, traceId, idempotencyKey). Idempotent per key.
model IiosAiJob {
  id               String          @id @default(cuid())
  scopeId          String
  jobType          IiosAiJobType
  interactionId    String?
  inputWindowRef   String
  purpose          String
  status           IiosAiJobStatus @default(PENDING)
  modelPolicyRef   String          @default("golden-v1")
  policyDecisionRef String?
  inputScopeHash   String
  replayVersion    String          @default("v1")
  abstentionReason String?
  traceId          String?
  idempotencyKey   String          @unique
  createdAt        DateTime        @default(now())

  artifacts IiosAiArtifact[]

  @@index([scopeId, jobType])
  @@index([interactionId])
}

/// Model/prompt/tool execution metadata + cost. The budget governor (KG-12) sums
/// costUnits per scope. In P7 provider='fake' (deterministic golden model).
model IiosAiModelRun {
  id            String   @id @default(cuid())
  scopeId       String
  provider      String   @default("fake")
  model         String
  modelVersion  String
  promptVersion String
  toolPolicyRef String?
  tokensIn      Int      @default(0)
  tokensOut     Int      @default(0)
  costUnits     Int      @default(0)
  latencyMs     Int      @default(0)
  createdAt     DateTime @default(now())

  artifacts IiosAiArtifact[]
  toolCalls IiosAiToolCall[]

  @@index([scopeId])
}

/// A durable AI proposal/output. NEVER committed truth by itself — status starts
/// PROPOSED and only a human accept (or a deterministic gate) advances it.
model IiosAiArtifact {
  id               String               @id @default(cuid())
  jobId            String
  job              IiosAiJob            @relation(fields: [jobId], references: [id], onDelete: Cascade)
  modelRunId       String
  modelRun         IiosAiModelRun       @relation(fields: [modelRunId], references: [id], onDelete: Cascade)
  artifactType     IiosAiArtifactType
  status           IiosAiArtifactStatus @default(PROPOSED)
  confidence       Float?
  contentRef       Json
  explanationRef   String?
  abstentionReason String?
  acceptedByActorId String?
  createdAt        DateTime             @default(now())

  claims   IiosAiClaim[]
  evidence IiosAiEvidenceLink[]

  @@index([jobId])
  @@index([status])
}

/// A structured extracted claim (event date, intent, priority, FAQ, moderation
/// flag). validationStatus stays UNVALIDATED until a human/deterministic accept.
model IiosAiClaim {
  id               String                @id @default(cuid())
  artifactId       String
  artifact         IiosAiArtifact        @relation(fields: [artifactId], references: [id], onDelete: Cascade)
  claimType        IiosAiClaimType
  claimJson        Json
  confidence       Float?
  validationStatus IiosAiClaimValidation @default(UNVALIDATED)
  acceptedByRef    String?
  createdAt        DateTime              @default(now())

  @@index([artifactId])
}

/// Source citation for an AI claim/artifact (message / segment / KB chunk).
model IiosAiEvidenceLink {
  id             String         @id @default(cuid())
  artifactId     String
  artifact       IiosAiArtifact @relation(fields: [artifactId], references: [id], onDelete: Cascade)
  sourceType     String
  sourceId       String
  spanRef        String?
  relevanceScore Float?
  createdAt      DateTime       @default(now())

  @@index([artifactId])
}

/// Tool calls made by an agent under MCP/tool policy. Schema now; exercised when a
/// real provider + tools land in P9.
model IiosAiToolCall {
  id            String         @id @default(cuid())
  modelRunId    String
  modelRun      IiosAiModelRun @relation(fields: [modelRunId], references: [id], onDelete: Cascade)
  toolName      String
  toolInputHash String
  toolOutputRef String?
  policyRefId   String?
  status        String         @default("PENDING")
  createdAt     DateTime       @default(now())

  @@index([modelRunId])
}

/// Reference to a vector embedding record/index; does not expose text. Schema now;
/// exercised when RAG lands in P9.
model IiosEmbeddingRef {
  id             String   @id @default(cuid())
  sourceType     String
  sourceId       String
  embeddingModel String
  vectorStoreRef String
  embeddingHash  String
  version        String
  createdAt      DateTime @default(now())

  @@unique([sourceType, sourceId, version])
}