Fas 2 steg 2: Inventory Trust Engine - decay-profiler och cache-jobb

packages/database/src/schema/_shared.ts

@@ -46,7 +46,6 @@ import {
   UNITS,
   USER_ROLES,
   VERIFICATION_STATUSES,
-  TRUST_STATES,
   tuple,
 } from "@app/shared-types";
 
@@ -113,4 +112,3 @@ export const creatorLevelEnum = pgEnum("creator_level", tuple(CREATOR_LEVELS));
 export const profileVisibilityEnum = pgEnum("profile_visibility", tuple(PROFILE_VISIBILITIES));
 export const notificationTypeEnum = pgEnum("notification_type", tuple(NOTIFICATION_TYPES));
 export const verificationStatusEnum = pgEnum("verification_status", tuple(VERIFICATION_STATUSES));
-export const trustStateEnum = pgEnum("trust_state", tuple(TRUST_STATES));

packages/database/src/schema/decay.ts

@@ -0,0 +1,32 @@
+import { boolean, doublePrecision, integer, pgTable, text, uuid, varchar } from "drizzle-orm/pg-core";
+import { createdAt, updatedAt } from "./_shared.js";
+import { inventoryItems } from "./inventory.js";
+
+/**
+ * Inventory Trust Engine (Fas 2 §5.2): deterministiska decay-profiler.
+ * En aktiv profil styr hur snabbt confidence sjunker med tiden.
+ * Decay påverkar endast FÖRTROENDE, inte ätbarhet (mjölkprincipen D-035).
+ */
+export const inventoryDecayProfiles = pgTable("inventory_decay_profiles", {
+  id: uuid("id").primaryKey().defaultRandom(),
+  name: varchar("name", { length: 64 }).notNull().unique(),
+  description: text("description"),
+  /** Antal dagar för confidence att halveras. */
+  halfLifeDays: doublePrecision("half_life_days").notNull().default(7),
+  /** Efter detta antal dagar anses posten vara stale oavsett ursprunglig confidence. */
+  staleAfterDays: integer("stale_after_days").notNull().default(30),
+  /** Sätt till false för att arkivera en profil utan att ta bort historiken. */
+  active: boolean("active").notNull().default(true),
+  createdAt: createdAt(),
+  updatedAt: updatedAt(),
+});
+
+/** Valbar FK från inventory_items till den profil som användes när posten skapades. */
+export const inventoryItemDecayProfile = pgTable("inventory_item_decay_profile", {
+  inventoryItemId: uuid("inventory_item_id")
+    .primaryKey()
+    .references(() => inventoryItems.id, { onDelete: "cascade" }),
+  decayProfileId: uuid("decay_profile_id")
+    .notNull()
+    .references(() => inventoryDecayProfiles.id, { onDelete: "restrict" }),
+});

packages/database/src/schema/index.ts

@@ -5,6 +5,7 @@ export * from "./households.js";
 export * from "./ingredients.js";
 export * from "./products.js";
 export * from "./inventory.js";
+export * from "./decay.js";
 export * from "./recipes.js";
 export * from "./translations.js";
 export * from "./markets.js";

packages/database/src/schema/inventory.ts

@@ -9,6 +9,7 @@ import {
   timestamp,
   uuid,
   integer,
+  varchar,
 } from "drizzle-orm/pg-core";
 import type { NutritionDeclaration } from "@app/shared-types";
 import {
@@ -17,7 +18,6 @@ import {
   expiryStatusEnum,
   inventorySourceEnum,
   inventoryTransactionTypeEnum,
-  trustStateEnum,
   unitEnum,
   updatedAt,
 } from "./_shared.js";
@@ -64,7 +64,7 @@ export const inventoryItems = pgTable(
     lastVerifiedAt: timestamp("last_verified_at", { withTimezone: true }),
     expiryStatus: expiryStatusEnum("expiry_status").notNull().default("unknown"),
     /** Inventory Trust Engine state (Fas 2): computed from confidence, decay and verification. */
-    trustState: trustStateEnum("trust_state").notNull().default("unverified"),
+    trustState: varchar("trust_state", { length: 16 }).notNull().default("unverified"),
     /** Sätts när saldot nått 0 och posten arkiverats. */
     depletedAt: timestamp("depleted_at", { withTimezone: true }),
     modelVersion: text("model_version"),

packages/database/src/seed/run.ts

@@ -590,6 +590,19 @@ async function main() {
   }
   console.log(`[seed] ${flags.length} feature flags`);
 
+  // 7. Default trust decay profile (Fas 2 §5.2)
+  await db
+    .insert(schema.inventoryDecayProfiles)
+    .values({
+      name: "default",
+      description: "Standardprofil: confidence halveras efter 7 dagar, stale efter 30 dagar.",
+      halfLifeDays: 7,
+      staleAfterDays: 30,
+      active: true,
+    })
+    .onConflictDoNothing();
+  console.log("[seed] 1 default decay profile");
+
   console.log("[seed] Klart.");
   await pool.end();
 }