ConusAI vendor v0.1.0-beta.114

modules/inventory/__tests__/app.ts

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+// Simulated adapter dispatch; these fixtures do not prove gateway or partition isolation.
+// The module on its own, wired the way apps/web wires a request -- tenancy on the in-memory data
+// source, the inventory module, and the Inventory port bound to the real generated client over the
+// business-services fake of @conusai-kit/testing -- so its procedures are tested whether or not this
+// app turned the module on.
+
+import { businessClient } from "@conusai-kit/business"
+import { type Actor, buildRegistry, Container, createCaller, type TransportCaller } from "@conusai-kit/core"
+import { createMemoryDataSource, DATA_SOURCE, entitiesOf, SYSTEM_DATA } from "@conusai-kit/data"
+import { createTenancyHooks, TENANCY, tenancyModule, users } from "@conusai-kit/tenancy"
+import { type FakeBusinessServices, fakeBusinessServices } from "@conusai-kit/testing"
+import { createClient } from "@conusai-sdk/inventory/client"
+import { simulatedBusinessAdmission } from "../../../test/helpers/business-admission.js"
+import { sdkInventoryService } from "../adapters/service.js"
+import { INVENTORY_SERVICE } from "../core/ports.js"
+import { inventoryModule } from "../module.js"
+
+/** The platform project of the fake deployment. */
+export const BINDING_ID = "01900000-0000-7000-8000-000000000001"
+
+export interface Tenant {
+  readonly owner: Actor
+  readonly call: TransportCaller
+  readonly orgSlug: string
+  readonly orgId: string
+  readonly workspaceSlug: string
+  readonly workspaceId: string
+  readonly projectSlug: string
+  readonly projectId: string
+  readonly slugs: { org: string; workspace: string; project: string }
+}
+
+export function inventoryApp(options: Parameters<typeof fakeBusinessServices>[0] = {}) {
+  const fake: FakeBusinessServices = fakeBusinessServices(options)
+  const client = businessClient({ apiUrl: fake.apiUrl, token: fake.token, orgSlug: fake.orgSlug }, createClient)
+  client.setConfig({ fetch: fake.fetch as typeof fetch })
+  const registry = buildRegistry([tenancyModule, inventoryModule])
+  const entities = entitiesOf(registry, "postgres")
+  const data = createMemoryDataSource({ entities })
+  const root = new Container()
+  root.value(DATA_SOURCE, data)
+  root.value(SYSTEM_DATA, data)
+  root.value(INVENTORY_SERVICE, sdkInventoryService({ client, orgSlug: fake.orgSlug, bindingId: BINDING_ID }))
+
+  const caller = (actor: Actor): TransportCaller => {
+    const tenancy = createTenancyHooks({ data, registry })
+    const container = root.child()
+    container.value(TENANCY, tenancy)
+    return createCaller({ registry, container, tenancy, serviceReadiness: simulatedBusinessAdmission }, { actor })
+  }
+
+  const signUp = async (email: string): Promise<Actor> => {
+    const user = await data.global(users).insert({
+      issuer: "https://id.example.test",
+      subject: email,
+      email,
+      displayName: email.split("@")[0] ?? email,
+      locale: "en",
+    })
+    return { userId: user.id }
+  }
+
+  /** An organization with one workspace and one project, owned by a new user. */
+  const tenant = async (slug: string): Promise<Tenant> => {
+    const owner = await signUp(`owner@${slug}.test`)
+    const call = caller(owner)
+    const org = (await call.callByName("tenancy.org.create", { slug, name: slug })) as { orgId: string; slug: string }
+    const workspace = (await call.callByName("tenancy.workspace.create", {
+      org: slug,
+      slug: `ws-${slug}`,
+      name: `Workspace ${slug}`,
+      visibility: "org",
+    })) as { workspaceId: string; slug: string }
+    const project = (await call.callByName("tenancy.project.create", {
+      org: slug,
+      workspace: workspace.slug,
+      slug: `p-${slug}`,
+      name: `Project ${slug}`,
+      moduleKey: "inventory",
+    })) as { projectId: string; slug: string }
+    return {
+      owner,
+      call,
+      orgSlug: org.slug,
+      orgId: org.orgId,
+      workspaceSlug: workspace.slug,
+      workspaceId: workspace.workspaceId,
+      projectSlug: project.slug,
+      projectId: project.projectId,
+      slugs: { org: org.slug, workspace: workspace.slug, project: project.slug },
+    }
+  }
+
+  /** A second user who joins `t`'s organization with the org role `role`. */
+  const member = async (t: Tenant, email: string, role: "viewer" | "member"): Promise<TransportCaller> => {
+    const invite = (await t.call.callByName("tenancy.member.invite", { org: t.orgSlug, email, role })) as {
+      token: string
+    }
+    const actor = await signUp(email)
+    const call = caller(actor)
+    await call.callByName("tenancy.invitation.accept", { org: t.orgSlug, token: invite.token })
+    return call
+  }
+
+  return { fake, registry, data, caller, signUp, tenant, member }
+}

modules/inventory/__tests__/core.test.ts

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+// The inventory use cases over a recording port: what each asks the service, with no client and no
+// network.
+
+import type { ProjectScope } from "@conusai-kit/core"
+import { describe, expect, it } from "vitest"
+import type { ReservationView } from "../contract/index.js"
+import {
+  createItem,
+  listItems,
+  listProjectReservations,
+  projectReference,
+  releaseStock,
+  requestKey,
+  reserveStock,
+} from "../core/inventory.js"
+import { type InventoryService, inventoryReadsOf } from "../core/ports.js"
+
+const scope: ProjectScope = {
+  level: "project",
+  actor: { userId: "u1" },
+  orgId: "o1",
+  workspaceId: "w1",
+  projectId: "01900000-0000-7000-8000-000000000003",
+}
+
+const reservation: ReservationView = {
+  reservationId: "r1",
+  itemId: "i1",
+  locationId: "l1",
+  quantity: 2,
+  outstanding: 2,
+  released: 0,
+  issued: 0,
+  status: "open",
+  createdAt: "2026-11-02T00:00:00.000Z",
+}
+
+function recording(
+  reference = projectReference("01900000-0000-7000-8000-000000000001", "01900000-0000-7000-8000-000000000003"),
+) {
+  const asked: Array<[string, unknown]> = []
+  const service: InventoryService = {
+    bindingId: "01900000-0000-7000-8000-000000000001",
+    listItems: async (query) => {
+      asked.push(["listItems", query])
+      return { rows: [] }
+    },
+    getItem: async () => {
+      throw new Error("not used")
+    },
+    availability: async () => {
+      throw new Error("not used")
+    },
+    listReservations: async (query) => {
+      asked.push(["listReservations", query])
+      return { rows: [] }
+    },
+    getReservation: async (id) => {
+      asked.push(["getReservation", id])
+      return { reservation, reference }
+    },
+    createItem: async (input) => {
+      asked.push(["createItem", input])
+      return { itemId: "i1", description: null, active: true, ...input }
+    },
+    reserve: async (input) => {
+      asked.push(["reserve", input])
+      return reservation
+    },
+    release: async (input) => {
+      asked.push(["release", input])
+      return { ...reservation, outstanding: 0, released: 2, status: "closed" }
+    },
+  }
+  return { service, asked }
+}
+
+describe("the project reference", () => {
+  it("names the immutable app binding and resolved project, in the service's reference grammar", () => {
+    const reference = projectReference("01900000-0000-7000-8000-000000000001", "0b5c8e9e-1f2a-4c55-9a77-3f1e2d4c5b6a")
+    expect(reference).toBe(
+      "conusai://app-partitions/01900000-0000-7000-8000-000000000001/projects/0b5c8e9e-1f2a-4c55-9a77-3f1e2d4c5b6a",
+    )
+    expect(reference).toMatch(/^[A-Za-z0-9][A-Za-z0-9._:/-]{0,199}$/)
+  })
+
+  it("keys a request by the project, so one project's request id never answers another's", () => {
+    expect(requestKey({ projectId: "01900000-0000-7000-8000-000000000003" }, "r")).not.toBe(
+      requestKey({ projectId: "01900000-0000-7000-8000-000000000004" }, "r"),
+    )
+  })
+})
+
+describe("the inventory use cases", () => {
+  it("list items with a trimmed search and the module's page size", async () => {
+    const { service, asked } = recording()
+    await listItems(service, { q: "  bolt " })
+    await listItems(service, { q: "   ", after: "x", limit: 5 })
+    expect(asked).toEqual([
+      ["listItems", { q: "bolt", limit: 50 }],
+      ["listItems", { after: "x", limit: 5 }],
+    ])
+  })
+
+  it("create an item without an empty description", async () => {
+    const { service, asked } = recording()
+    await createItem(service, { sku: "B", name: " Bolt ", unit: "pcs", description: "  " })
+    expect(asked).toEqual([["createItem", { sku: "B", name: "Bolt", unit: "pcs" }]])
+  })
+
+  it("list and reserve against the project's reference with the project's request key", async () => {
+    const { service, asked } = recording()
+    await listProjectReservations(service, scope, { status: "open" })
+    await reserveStock(service, scope, { itemId: "i1", locationId: "l1", quantity: 2, requestId: "q1" })
+    expect(asked).toEqual([
+      [
+        "listReservations",
+        {
+          reference:
+            "conusai://app-partitions/01900000-0000-7000-8000-000000000001/projects/01900000-0000-7000-8000-000000000003",
+          status: "open",
+          limit: 50,
+        },
+      ],
+      [
+        "reserve",
+        {
+          itemId: "i1",
+          locationId: "l1",
+          quantity: 2,
+          reference:
+            "conusai://app-partitions/01900000-0000-7000-8000-000000000001/projects/01900000-0000-7000-8000-000000000003",
+          key: requestKey(scope, "q1"),
+        },
+      ],
+    ])
+  })
+
+  it("release a reservation of the project, and answer another project's as not found without releasing it", async () => {
+    const mine = recording()
+    expect(await releaseStock(mine.service, scope, { reservationId: "r1", requestId: "q2" })).toMatchObject({
+      status: "closed",
+    })
+    expect(mine.asked.at(-1)).toEqual(["release", { reservationId: "r1", key: requestKey(scope, "q2") }])
+
+    const theirs = recording(
+      projectReference("01900000-0000-7000-8000-000000000001", "01900000-0000-7000-8000-000000000004"),
+    )
+    await expect(releaseStock(theirs.service, scope, { reservationId: "r1", requestId: "q3" })).rejects.toMatchObject({
+      problem: { status: 404 },
+    })
+    expect(theirs.asked.map(([method]) => method)).toEqual(["getReservation"])
+  })
+
+  it("hand a read handler a view without a single write", () => {
+    const view = inventoryReadsOf(recording().service) as unknown as Record<string, unknown>
+    expect(Object.keys(view).sort()).toEqual([
+      "availability",
+      "bindingId",
+      "getItem",
+      "getReservation",
+      "listItems",
+      "listReservations",
+    ])
+  })
+})

modules/inventory/__tests__/i18n.test.ts

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+// Every string a page of the module shows is a message in English and in Lithuanian, the Lithuanian
+// plural forms are real ones, and no component of the module carries a string of its own.
+
+import { readdirSync, readFileSync } from "node:fs"
+import { join } from "node:path"
+import { buildRegistry } from "@conusai-kit/core"
+import { createI18n, lintUiStrings } from "@conusai-kit/i18n"
+import { tenancyModule } from "@conusai-kit/tenancy"
+import { describe, expect, it } from "vitest"
+import { inventoryModule } from "../module.js"
+import { itemFormLabels, itemListLabels, reservationListLabels, reserveFormLabels, stockLabels } from "../ui/labels.js"
+
+// The messages as an app that turned the module on has them: from the manifest, flattened by the kit.
+const catalogues = buildRegistry([tenancyModule, inventoryModule]).catalogues
+const en = catalogues.en?.inventory ?? {}
+const lt = catalogues.lt?.inventory ?? {}
+
+function keysUsed(): string[] {
+  const asked: string[] = []
+  const t = (key: string) => {
+    asked.push(key)
+    return key
+  }
+  itemFormLabels(t, {})
+  itemListLabels(t)
+  stockLabels(t, "pcs", 2)
+  reserveFormLabels(t, {})
+  reservationListLabels(t, {})
+  return asked
+}
+
+describe("the inventory catalogues", () => {
+  it("hold the same keys in English and in Lithuanian, none empty", () => {
+    expect(Object.keys(lt).sort()).toEqual(Object.keys(en).sort())
+    for (const [key, text] of [...Object.entries(en), ...Object.entries(lt)]) expect(text.trim(), key).not.toBe("")
+  })
+
+  it("hold every message the labels ask for, and none that nothing asks for", () => {
+    const asked = keysUsed()
+    for (const key of asked) {
+      expect(en[key as keyof typeof en], `en is missing inventory.${key}`).toBeTruthy()
+      expect(lt[key as keyof typeof lt], `lt is missing inventory.${key}`).toBeTruthy()
+    }
+    // The page and the navigation ask for these directly.
+    const direct = new Set(["title", "intro", "items.title", "item.back"])
+    expect(Object.keys(en).filter((key) => !asked.includes(key) && !direct.has(key))).toEqual([])
+  })
+
+  it("answer the navigation label the manifest names", () => {
+    expect(inventoryModule.ui?.nav?.map((item) => item.label)).toEqual(["inventory.title"])
+  })
+
+  it("count locations with the Lithuanian one, few and other forms", () => {
+    const count = (locale: "en" | "lt", n: number) =>
+      createI18n(locale, { en: { inventory: en }, lt: { inventory: lt } }).message("inventory.item.locations", {
+        count: n,
+      })
+    expect(count("lt", 1)).toBe("1 vieta su atsargomis")
+    expect(count("lt", 3)).toBe("3 vietos su atsargomis")
+    expect(count("lt", 10)).toBe("10 vietų su atsargomis")
+    expect(count("lt", 21)).toBe("21 vieta su atsargomis")
+    expect(count("en", 1)).toBe("1 location with stock")
+    expect(count("en", 2)).toBe("2 locations with stock")
+  })
+})
+
+describe("the components", () => {
+  const dir = new URL("../ui/", import.meta.url).pathname
+  const sources = readdirSync(dir)
+    .filter((name) => name.endsWith(".tsx"))
+    .map((name) => ({ name, text: readFileSync(join(dir, name), "utf8") }))
+
+  it("carry no hard-coded user-facing string and no colour literal", () => {
+    expect(sources.length).toBeGreaterThanOrEqual(5)
+    for (const { name, text } of sources) {
+      expect(lintUiStrings(text, name), name).toEqual([])
+      expect(text, name).not.toMatch(/#[0-9a-fA-F]{3,8}\b|\brgb\(|\bhsl\(|\boklch\(/)
+    }
+  })
+})

modules/inventory/__tests__/isolation.ts

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+// What the generated tenant-isolation suite (test/isolation.test.ts) needs of this module, from this
+// folder: one fixture per tenant-scoped procedure, each called as a member of one organization with
+// another's slugs, which the resolver must refuse before the Inventory service is reached.
+//
+// The module keeps no row of its own, so it seeds nothing: what a fixture names is the other tenant's
+// project, and an id is any well-formed one (the service is never asked). The suite reads this file by
+// its place whether or not the module is on, and checks only the procedures the app registers, so
+// while the module is off (the template's default) it brings no fixture; `procedures.test.ts` runs the
+// same fixtures against the module on its own, on or off.
+
+import type { TransportCaller } from "@conusai-kit/core"
+import type { IsolationFixture, IsolationTenant } from "@conusai-kit/testing"
+import { businessModulesOn } from "../../index.js"
+
+const SOMEWHERE = "00000000-0000-4000-8000-000000000001"
+const inProjectOf = (t: IsolationTenant) => ({ org: t.orgSlug, workspace: t.workspaceSlug, project: t.projectSlug })
+
+export const inventoryIsolationFixtures: Record<string, IsolationFixture> = {
+  "inventory.item.list": { input: (t) => inProjectOf(t) },
+  "inventory.item.create": { input: (t) => ({ ...inProjectOf(t), sku: "INTRUDER-1", name: "Intruder", unit: "pcs" }) },
+  "inventory.item.availability": { input: (t) => ({ ...inProjectOf(t), itemId: SOMEWHERE }) },
+  "inventory.reservation.list": { input: (t) => inProjectOf(t) },
+  "inventory.stock.reserve": {
+    input: (t) => ({ ...inProjectOf(t), itemId: SOMEWHERE, locationId: SOMEWHERE, quantity: 1, requestId: SOMEWHERE }),
+  },
+  "inventory.stock.release": { input: (t) => ({ ...inProjectOf(t), reservationId: SOMEWHERE, requestId: SOMEWHERE }) },
+}
+
+/** The shape the suite reads (`modules/notes/__tests__/isolation.ts` names it), so no other module is imported. */
+export const isolation: {
+  seed(
+    call: TransportCaller,
+    inProject: { org: string; workspace: string; project: string },
+  ): Promise<Record<string, string>>
+  fixtures: Record<string, IsolationFixture>
+} = {
+  seed: async () => ({}),
+  fixtures: businessModulesOn.includes("inventory") ? inventoryIsolationFixtures : {},
+}

modules/inventory/__tests__/procedures.test.ts

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+// The inventory procedures end to end: the caller, the tenancy resolver, the module and the real
+// generated client against the business-services fake -- what a member sees, what the service gets,
+// and each refusal as the kit's app error (`businessAppError`) a page or a form shows.
+
+import { businessClient } from "@conusai-kit/business"
+import type { AppError } from "@conusai-kit/core"
+import { entitiesOf } from "@conusai-kit/data"
+import { TENANCY_ALSO_CHECK, tenancyIsolationExempt, tenancyIsolationFixtures } from "@conusai-kit/tenancy/testing"
+import { type IsolationTenant, runIsolation, snapshotOf } from "@conusai-kit/testing"
+import { inventoryCreateLocation, inventoryRecordMovement } from "@conusai-sdk/inventory"
+import { createClient } from "@conusai-sdk/inventory/client"
+import { describe, expect, it } from "vitest"
+import { projectReference } from "../core/inventory.js"
+import { BINDING_ID, inventoryApp } from "./app.js"
+import { inventoryIsolationFixtures } from "./isolation.js"
+
+const refusal = async (promise: Promise<unknown>): Promise<AppError> => {
+  try {
+    await promise
+  } catch (error) {
+    return error as AppError
+  }
+  throw new Error("the call was not refused")
+}
+
+const bolt = { sku: "BOLT-8", name: "Bolt M8", unit: "pcs" }
+
+/** Stock as the service receives it: a new location, then a receipt into it; answers the location's id. */
+const receive = async (app: ReturnType<typeof inventoryApp>, itemId: string, quantity: number): Promise<string> => {
+  const client = businessClient(
+    { apiUrl: app.fake.apiUrl, token: app.fake.token, orgSlug: app.fake.orgSlug },
+    createClient,
+  )
+  client.setConfig({ fetch: app.fake.fetch as typeof fetch })
+  const path = { org_slug: app.fake.orgSlug }
+  const code = `STORE-${app.fake.inventory.locations.size + 1}`
+  const location = await inventoryCreateLocation({ client, path, body: { code, name: "Store" } })
+  const locationId = location.data?.id as string
+  const receipt = await inventoryRecordMovement({
+    client,
+    path,
+    body: {
+      kind: "receipt",
+      item_id: itemId,
+      quantity: BigInt(quantity),
+      to_location_id: locationId,
+      idempotency_key: `receipt:${locationId}`,
+    },
+  })
+  expect(receipt.response?.status).toBe(201)
+  return locationId
+}
+
+describe("the inventory procedures", () => {
+  it("create an item, list it, and read its stock", async () => {
+    const app = inventoryApp()
+    const t = await app.tenant("alpha")
+    const created = (await t.call.callByName("inventory.item.create", { ...t.slugs, ...bolt })) as { itemId: string }
+    expect(created).toMatchObject({ sku: "BOLT-8", name: "Bolt M8", unit: "pcs", active: true, description: null })
+    const listed = (await t.call.callByName("inventory.item.list", t.slugs)) as {
+      rows: { itemId: string }[]
+      after?: string
+    }
+    expect(listed.rows.map((row) => row.itemId)).toEqual([created.itemId])
+    expect(listed.after).toBeUndefined()
+    await receive(app, created.itemId, 12)
+    const stock = (await t.call.callByName("inventory.item.availability", { ...t.slugs, itemId: created.itemId })) as {
+      availability: { onHand: number; available: number; locations: unknown[] }
+    }
+    expect(stock.availability).toMatchObject({ onHand: 12, available: 12 })
+    expect(stock.availability.locations).toHaveLength(1)
+  })
+
+  it("reserve against the project's reference, list the project's reservations, and release them", async () => {
+    const app = inventoryApp()
+    const t = await app.tenant("alpha")
+    const { itemId } = (await t.call.callByName("inventory.item.create", { ...t.slugs, ...bolt })) as { itemId: string }
+    const locationId = await receive(app, itemId, 10)
+    const requestId = crypto.randomUUID()
+    const reserve = { ...t.slugs, itemId, locationId, quantity: 3, requestId }
+    const reserved = (await t.call.callByName("inventory.stock.reserve", reserve)) as { reservationId: string }
+    expect(reserved).toMatchObject({ quantity: 3, outstanding: 3, status: "open" })
+    // A retried request reserves once.
+    expect(await t.call.callByName("inventory.stock.reserve", reserve)).toEqual(reserved)
+    expect(app.fake.inventory.reservations.size).toBe(1)
+    const held = [...app.fake.inventory.reservations.values()][0]
+    expect(held?.reference).toBe(projectReference(BINDING_ID, t.projectId))
+    expect(held?.reference).toBe(`conusai://app-partitions/${BINDING_ID}/projects/${t.projectId}`)
+
+    const listed = (await t.call.callByName("inventory.reservation.list", { ...t.slugs, status: "open" })) as {
+      rows: unknown[]
+    }
+    expect(listed.rows).toEqual([reserved])
+    const released = await t.call.callByName("inventory.stock.release", {
+      ...t.slugs,
+      reservationId: reserved.reservationId,
+      requestId: crypto.randomUUID(),
+    })
+    expect(released).toMatchObject({ outstanding: 0, released: 3, status: "closed" })
+  })
+
+  it("keep one project's reservations from another project of the same organization", async () => {
+    const app = inventoryApp()
+    const t = await app.tenant("alpha")
+    const other = (await t.call.callByName("tenancy.project.create", {
+      org: t.orgSlug,
+      workspace: t.workspaceSlug,
+      slug: "other",
+      name: "Other",
+      moduleKey: "inventory",
+    })) as { slug: string }
+    const otherSlugs = { ...t.slugs, project: other.slug }
+    const { itemId } = (await t.call.callByName("inventory.item.create", { ...t.slugs, ...bolt })) as { itemId: string }
+    const locationId = await receive(app, itemId, 10)
+    const mine = (await t.call.callByName("inventory.stock.reserve", {
+      ...t.slugs,
+      itemId,
+      locationId,
+      quantity: 1,
+      requestId: crypto.randomUUID(),
+    })) as { reservationId: string }
+    expect(((await t.call.callByName("inventory.reservation.list", otherSlugs)) as { rows: unknown[] }).rows).toEqual(
+      [],
+    )
+    const refused = await refusal(
+      t.call.callByName("inventory.stock.release", {
+        ...otherSlugs,
+        reservationId: mine.reservationId,
+        requestId: crypto.randomUUID(),
+      }),
+    )
+    expect(refused.problem).toMatchObject({ status: 404, code: "not_found" })
+    expect(app.fake.inventory.reservations.get(mine.reservationId)?.outstanding).toBe(1)
+  })
+
+  it("answer the service's refusals with the kit's codes, carrying none of the service's detail", async () => {
+    const app = inventoryApp()
+    const t = await app.tenant("alpha")
+    await t.call.callByName("inventory.item.create", { ...t.slugs, ...bolt })
+    const taken = await refusal(t.call.callByName("inventory.item.create", { ...t.slugs, ...bolt }))
+    expect(taken.problem).toMatchObject({ status: 409, code: "business_duplicate", title: "This already exists." })
+    expect(taken.problem.detail).toBeUndefined()
+    const { itemId } = (await t.call.callByName("inventory.item.create", { ...t.slugs, ...bolt, sku: "NUT-8" })) as {
+      itemId: string
+    }
+    const locationId = await receive(app, itemId, 1)
+    const short = await refusal(
+      t.call.callByName("inventory.stock.reserve", {
+        ...t.slugs,
+        itemId,
+        locationId,
+        quantity: 2,
+        requestId: crypto.randomUUID(),
+      }),
+    )
+    expect(short.problem).toMatchObject({ status: 409, code: "business_insufficient_stock" })
+  })
+
+  it("answer a disabled service, a missing scope and a silent service with the kit's codes", async () => {
+    const app = inventoryApp({ inventory: false })
+    const t = await app.tenant("alpha")
+    const disabled = await refusal(t.call.callByName("inventory.item.list", t.slugs))
+    expect(disabled.problem).toMatchObject({ status: 404, code: "service_not_enabled" })
+
+    app.fake.enable("inventory")
+    app.fake.revoke("inventory.items:write")
+    const scoped = await refusal(t.call.callByName("inventory.item.create", { ...t.slugs, ...bolt }))
+    expect(scoped.problem).toMatchObject({ status: 403, code: "service_permission_missing" })
+    expect(scoped.problem.detail).not.toContain("inventory.items:write")
+
+    app.fake.refuseNext("network")
+    const silent = await refusal(t.call.callByName("inventory.item.list", t.slugs))
+    expect(silent.problem).toMatchObject({ status: 503, code: "business_unavailable" })
+    expect(JSON.stringify([disabled.problem, scoped.problem, silent.problem])).not.toContain(app.fake.token)
+  })
+
+  it("let a viewer read and refuse their write before the service is called", async () => {
+    const app = inventoryApp()
+    const t = await app.tenant("alpha")
+    const viewer = await app.member(t, "viewer@alpha.test", "viewer")
+    expect(await viewer.callByName("inventory.item.list", t.slugs)).toEqual({ rows: [] })
+    const before = app.fake.calls.length
+    // A member without the permission is answered as a non-member is (kit-core's caller, spec §3.3).
+    const refused = await refusal(viewer.callByName("inventory.item.create", { ...t.slugs, ...bolt }))
+    expect(refused.problem.status).toBe(404)
+    const reserve = await refusal(
+      viewer.callByName("inventory.stock.reserve", {
+        ...t.slugs,
+        itemId: crypto.randomUUID(),
+        locationId: crypto.randomUUID(),
+        quantity: 1,
+        requestId: crypto.randomUUID(),
+      }),
+    )
+    expect(reserve.problem.status).toBe(404)
+    expect(app.fake.calls.length).toBe(before)
+  })
+
+  it("refuse a body outside the contract before the service is called", async () => {
+    const app = inventoryApp()
+    const t = await app.tenant("alpha")
+    const refused = await refusal(t.call.callByName("inventory.item.create", { ...t.slugs, ...bolt, unit: "Pieces" }))
+    expect(refused.problem.status).toBe(422)
+    expect(app.fake.calls).toEqual([])
+  })
+})
+
+describe("the inventory module's tenant isolation", () => {
+  it("refuses every procedure called with another organization's slugs, and never reaches the service", async () => {
+    const app = inventoryApp()
+    const tenant = async (slug: string): Promise<IsolationTenant> => {
+      const t = await app.tenant(slug)
+      return {
+        orgSlug: t.orgSlug,
+        workspaceSlug: t.workspaceSlug,
+        projectSlug: t.projectSlug,
+        orgId: t.orgId,
+        workspaceId: t.workspaceId,
+        projectId: t.projectId,
+        userId: t.owner.userId,
+        email: `owner@${slug}.test`,
+        extra: {},
+      }
+    }
+    const a = await tenant("alpha")
+    const b = await tenant("bravo")
+    const result = await runIsolation({
+      registry: app.registry,
+      seed: async () => ({ a, b }),
+      caller: (actor) => app.caller(actor),
+      snapshot: () => snapshotOf(app.data, entitiesOf(app.registry, "postgres"), { outbox: app.data.outbox }),
+      fixtures: { ...tenancyIsolationFixtures(), ...inventoryIsolationFixtures },
+      alsoCheck: [...TENANCY_ALSO_CHECK],
+      exempt: tenancyIsolationExempt,
+    })
+    expect(result.failures).toEqual([])
+    for (const name of Object.keys(inventoryIsolationFixtures)) expect(result.passed, name).toContain(name)
+    expect(app.fake.calls).toEqual([])
+  })
+})

modules/inventory/__tests__/service.test.ts

@@ -0,0 +1,36 @@
+// Prepared request binding is required; injected test ports preserve kind capabilities.
+
+import { AppError, Container } from "@conusai-kit/core"
+import { describe, expect, it } from "vitest"
+import { inventoryServiceOf } from "../adapters/service.js"
+import { INVENTORY_SERVICE, type InventoryService } from "../core/ports.js"
+
+const service = {
+  bindingId: "01900000-0000-7000-8000-000000000001",
+  createItem: async () => {
+    throw new Error("not called")
+  },
+} as unknown as InventoryService
+
+describe("inventoryServiceOf", () => {
+  it("hands a read handler the bound service's reads only, and an effect handler all of it", () => {
+    const root = new Container()
+    root.value(INVENTORY_SERVICE, service)
+    const read = inventoryServiceOf(root.restrict("read"), "read") as unknown as Record<string, unknown>
+    expect(read.createItem).toBeUndefined()
+    expect(read.bindingId).toBe("01900000-0000-7000-8000-000000000001")
+    expect(inventoryServiceOf(root.restrict("effect"), "effect").createItem).toBe(service.createItem)
+  })
+
+  it("refuses a request without a prepared partition binding", () => {
+    let thrown: unknown
+    try {
+      inventoryServiceOf(new Container(), "read")
+    } catch (error) {
+      thrown = error
+    }
+    expect(thrown).toBeInstanceOf(AppError)
+    expect((thrown as AppError).problem).toMatchObject({ status: 409, code: "service_partition_missing" })
+    expect((thrown as AppError).problem.detail).not.toContain("token")
+  })
+})

modules/inventory/__tests__/ui.test.tsx

@@ -0,0 +1,203 @@
+// The pages and components, rendered on the server the way the shell renders them: the platform's
+// refusals are the page's own states, every control has a name, every table a caption and scoped
+// headers.
+
+import { AppError, buildRegistry, Container, type TransportCaller } from "@conusai-kit/core"
+import { builtInCatalogues, createI18n, uiLabels } from "@conusai-kit/i18n"
+import { tenancyModule } from "@conusai-kit/tenancy"
+import { createDataClient, DataProvider, type PermissionKey, PermissionsProvider } from "@conusai-kit/ui/data"
+import { UiLabelsProvider } from "@conusai-kit/ui/primitives"
+import type { ReactNode } from "react"
+import { renderToStaticMarkup as renderMarkup } from "react-dom/server"
+import { describe, expect, it, vi } from "vitest"
+import { modulePages } from "../../pages.js"
+import { inventoryModule } from "../module.js"
+import { inventoryPage } from "../ui/pages.js"
+
+const catalogues = buildRegistry([tenancyModule, inventoryModule]).catalogues
+const i18n = createI18n("en", {
+  en: { inventory: catalogues.en?.inventory ?? {}, app: { failed: "That did not work: {detail}" } },
+})
+const slugs = { org: "acme", workspace: "ws", project: "p" }
+const ITEM = "0b5c8e9e-1f2a-4c55-9a77-3f1e2d4c5b6a"
+const LOCATION = "7d1e2f3a-0000-4000-8000-000000000001"
+
+const EVERYTHING: readonly PermissionKey[] = ["inventory.item.read", "inventory.item.write", "inventory.stock.reserve"]
+
+/** Rendered as the shell renders a page: a data client, and the caller's permissions in the page's scope. */
+const kitStrings = uiLabels(createI18n("en", builtInCatalogues))
+const renderToStaticMarkup = (node: React.ReactNode) =>
+  renderMarkup(<UiLabelsProvider labels={kitStrings}>{node}</UiLabelsProvider>)
+
+const inProvider = (node: ReactNode, permissions: readonly PermissionKey[] = EVERYTHING) =>
+  renderToStaticMarkup(
+    <DataProvider client={createDataClient({ fetch: async () => new Response(null, { status: 501 }) })}>
+      <PermissionsProvider scope={slugs} seed={{ scope: slugs, permissions, revision: "1" }}>
+        {node}
+      </PermissionsProvider>
+    </DataProvider>,
+  )
+
+/** A caller that answers each procedure from `answers`, or throws what is there. */
+const callerOf = (answers: Record<string, unknown>): TransportCaller =>
+  ({
+    call: async (contract: { name: string }) => {
+      const answer = answers[contract.name]
+      if (answer instanceof Error) throw answer
+      return answer
+    },
+  }) as unknown as TransportCaller
+
+const load = (segments: string[], answers: Record<string, unknown>, reader = i18n) =>
+  inventoryPage.load({
+    slugs,
+    segments,
+    search: {},
+    caller: callerOf(answers),
+    i18n: reader,
+    container: new Container(),
+  })
+
+/** The page as the shell renders it: the loader's data through JSON, as the browser receives it, then the view. */
+const render = async (segments: string[], answers: Record<string, unknown>, permissions?: readonly PermissionKey[]) => {
+  const data = await load(segments, answers)
+  expect(JSON.parse(JSON.stringify(data))).toEqual(data)
+  const { View } = inventoryPage
+  return inProvider(
+    <View slugs={slugs} segments={segments} locale="en" data={JSON.parse(JSON.stringify(data))} />,
+    permissions,
+  )
+}
+
+const platformRefusal = (status: number, code: string, detail: string) =>
+  new AppError({ type: `/problems/${code}`, title: "Refused", status, code, detail })
+
+describe("the inventory page", () => {
+  it("lists the items and this project's reservations", async () => {
+    const html = await render([], {
+      "inventory.item.list": {
+        rows: [{ itemId: ITEM, sku: "BOLT-8", name: "Bolt M8", unit: "pcs", description: null, active: true }],
+      },
+      "inventory.reservation.list": {
+        rows: [
+          {
+            reservationId: "r1",
+            itemId: ITEM,
+            locationId: LOCATION,
+            quantity: 3,
+            outstanding: 3,
+            released: 0,
+            issued: 0,
+            status: "open",
+            createdAt: "2026-11-02T00:00:00.000Z",
+          },
+        ],
+      },
+    })
+    expect(html).toContain(">Inventory</h1>")
+    const link = html.match(/<a\b[^>]*>BOLT-8<\/a>/)?.[0] ?? ""
+    expect(link).toContain('data-slot="row-link"')
+    expect(link.match(/class="([^"]*)"/)?.[1]?.split(/\s+/)).toContain("kit-row-link")
+    expect(link).toContain(`href="/acme/ws/p/inventory/${ITEM}"`)
+    expect(link).toContain('aria-label="Stock of BOLT-8"')
+    expect(html).toContain('aria-label="Items"')
+    expect(html).toContain('aria-label="Open reservations of this project"')
+    expect(html).toContain("BOLT-8 Bolt M8")
+    expect(html).toContain("SKU")
+    expect(html).toContain('role="search"')
+  })
+
+  it("shows an item's stock by location, and the form that reserves it for whoever may", async () => {
+    const answers = {
+      "inventory.item.availability": {
+        item: { itemId: ITEM, sku: "BOLT-8", name: "Bolt M8", unit: "pcs", description: null, active: true },
+        availability: {
+          itemId: ITEM,
+          unit: "pcs",
+          onHand: 10,
+          reserved: 3,
+          available: 7,
+          locations: [{ locationId: LOCATION, onHand: 10, reserved: 3, available: 7 }],
+        },
+      },
+    }
+    const html = await render([ITEM], answers)
+    expect(html).toContain("Counted in pcs")
+    expect(html).toContain("1 location with stock")
+    expect(html).toContain('aria-label="Stock by location"')
+    expect(html).toContain("7d1e2f3a")
+    expect(html).toContain("Reserve for this project")
+    expect(html).toContain("7d1e2f3a (7)")
+    const reader = await render([ITEM], answers, ["inventory.item.read"])
+    expect(reader).not.toContain("Reserve for this project")
+  })
+
+  it("offers the item form only to a member who may write items", async () => {
+    const answers = { "inventory.item.list": { rows: [] }, "inventory.reservation.list": { rows: [] } }
+    expect(await render([], answers)).toContain("New item")
+    const reader = await render([], answers, ["inventory.item.read"])
+    expect(reader).not.toContain("New item")
+    expect(reader).toContain("No items yet.")
+  })
+
+  it("shows the kit's not-enabled state when the organization has not enabled the service", async () => {
+    const refused = platformRefusal(404, "service_not_enabled", "Service admission refused: not_enabled.")
+    const html = await render([], { "inventory.item.list": refused, "inventory.reservation.list": refused })
+    expect(html).toContain('data-state="service_not_enabled"')
+    expect(html).toContain("This service is not enabled for your organization.")
+    expect(html).not.toContain('role="grid"')
+  })
+
+  it("tells a Lithuanian reader in the kit's Lithuanian sentence", async () => {
+    const lt = createI18n("lt", { lt: { inventory: catalogues.lt?.inventory ?? {} } })
+    const refused = platformRefusal(404, "service_not_enabled", "Service admission refused: not_enabled.")
+    const data = await load([], { "inventory.item.list": refused, "inventory.reservation.list": refused }, lt)
+    expect(data).toMatchObject({
+      kind: "state",
+      notice: { code: "service_not_enabled", text: "Ši paslauga jūsų organizacijai neįjungta." },
+    })
+    const answers = { "inventory.item.list": { rows: [] }, "inventory.reservation.list": { rows: [] } }
+    const list = await load([], answers, lt)
+    expect(list.kind === "list" && list.itemForm.refusals.business_duplicate).toBe("Toks įrašas jau yra.")
+    expect(list.kind === "list" && list.reservationList.refusals.business_reservation_state).toBe(
+      "Šio rezervavimo dabartinėje būsenoje pakeisti negalima.",
+    )
+  })
+
+  it("shows a missing permission and a silent service in the kit's words", async () => {
+    const scoped = platformRefusal(403, "service_permission_missing", "Service admission refused: permission_missing.")
+    expect(await render([ITEM], { "inventory.item.availability": scoped })).toContain(
+      "This app is not allowed to use this service. Ask an administrator to grant it.",
+    )
+    const silent = platformRefusal(503, "business_unavailable", "The service did not answer. Try again later.")
+    const html = await render([ITEM], { "inventory.item.availability": silent })
+    expect(html).toContain('data-state="business_unavailable"')
+    expect(html).toContain("The service did not answer. Try again later.")
+  })
+
+  it("leaves any other refusal, and a path it does not have, to the shell", async () => {
+    await expect(
+      render([ITEM], {
+        "inventory.item.availability": new AppError({
+          type: "/problems/not_found",
+          title: "Not found",
+          status: 404,
+          code: "not_found",
+        }),
+      }),
+    ).rejects.toMatchObject({
+      problem: { code: "not_found" },
+    })
+    await expect(render(["not-an-id"], {})).rejects.toMatchObject({ problem: { status: 404 } })
+    await expect(render([ITEM, "more"], {})).rejects.toMatchObject({ problem: { status: 404 } })
+  })
+
+  it("is listed for the shell", async () => {
+    await expect(modulePages.inventory?.()).resolves.toBe(inventoryPage)
+  })
+})
+
+// Explicit synthetic admission: module-local fixtures exercise the selected module.
+vi.mock("../../inclusion.json", () => ({
+  default: { schemaVersion: 1, selected: ["inventory"], everAdopted: ["inventory"] },
+}))