feat(platform): business/product architecture — organizations, guardians, offerings, registrations

- organizations, locations, guardians, student_guardians (033) — additive, no existing
  table's meaning changes. Widens programs.family to accept 'bootcamp'.
- curriculum_packages/curriculum_package_items, offerings, instructor_offerings,
  offering_registrations, agreement_definitions/agreement_acceptances (034) — the full
  purchasable-delivery model. Server-defined status transitions only (no client-controlled
  offering/registration status). Capacity uses a single atomic UPDATE (reserved_seats),
  never a SELECT-count-then-INSERT race.
- offerings.js — business logic: reserveSeat/releaseSeat, transitionOffering/
  transitionRegistration (fixed transition tables), convertRegistrationToEnrollment
  (reuses enrollment.js's existing resolveOrCreateStudent/createManualEnrollment rather
  than duplicating student-matching logic).
- enrollment.js — resolveOrCreateStudent gains an optional, default-off returnToken param
  (used only by offerings.js's admin-only conversion route; the public website integration
  endpoint's contract is completely unchanged, per docs/WEBSITE_ENROLLMENT_INTEGRATION.md).
- admin-offerings-routes.js — the full admin/owner API surface. Registration/guardian
  detail is admin/owner only; offering/location listing is any instructor (access_notes
  stripped for a plain instructor).
- A real bug found and fixed during this phase's own smoke testing before any commit: the
  registration route originally reserved a seat BEFORE validating the registration's own
  fields, letting a validation failure consume a real seat and get masked behind a false
  OFFERING_FULL under a full offering. Fixed: validate (create) first, reserve second, roll
  back the registration row if reservation then genuinely fails.

See docs/ROOTNODE_ACADEMY_BUSINESS_AND_PRODUCT_ARCHITECTURE.md and
docs/OFFERING_AND_REGISTRATION_MODEL.md.

Co-Authored-By: Claude Sonnet 5 <[email protected]>

platform/api/migrations/033_phase7_organizations_locations_guardians.sql

@@ -0,0 +1,88 @@
+-- Phase 7 §7/§8/§10 — the business/product architecture's first-class organization, location,
+-- and guardian concepts. Additive only: no existing table's meaning changes, no existing row's
+-- data moves. See docs/ROOTNODE_ACADEMY_BUSINESS_AND_PRODUCT_ARCHITECTURE.md and
+-- docs/STUDENT_GUARDIAN_DATA_MODEL.md for the full reasoning.
+
+-- ═══════════════════════════════════════════════════════════════════════════════════════════
+-- programs.family widened for BOOTCAMP_ (Step 15/21) — a program row can now describe a
+-- seasonal/intensive offering family too. No existing row's family value changes; this is a
+-- pure widening of what's allowed going forward.
+-- ═══════════════════════════════════════════════════════════════════════════════════════════
+ALTER TABLE programs DROP CONSTRAINT IF EXISTS programs_family_check;
+ALTER TABLE programs ADD CONSTRAINT programs_family_check CHECK (family IN ('init', 'compile', 'root', 'bootcamp'));
+
+-- ═══════════════════════════════════════════════════════════════════════════════════════════
+-- organizations — a business/delivery relationship (a school, library, homeschool group,
+-- community partner, workforce-development partner), NOT a SaaS tenant. RootNode Academy
+-- remains one Academy; no other table gets an organization_id foreign key added to it wholesale
+-- — only offerings and locations reference one, and only optionally (Step 7's explicit
+-- "do not move all RootNode data under organization_id").
+-- ═══════════════════════════════════════════════════════════════════════════════════════════
+CREATE TABLE IF NOT EXISTS organizations (
+  organization_id  TEXT PRIMARY KEY,
+  name              TEXT NOT NULL,
+  type              TEXT NOT NULL DEFAULT 'other' CHECK (type IN ('school', 'library', 'homeschool_group', 'community', 'workforce_partner', 'other')),
+  status            TEXT NOT NULL DEFAULT 'active' CHECK (status IN ('active', 'inactive')),
+  contact_name      TEXT,
+  contact_email     TEXT,
+  contact_phone     TEXT,
+  notes             TEXT,
+  created_at        TIMESTAMPTZ NOT NULL DEFAULT now(),
+  updated_at        TIMESTAMPTZ NOT NULL DEFAULT now()
+);
+
+-- ═══════════════════════════════════════════════════════════════════════════════════════════
+-- locations — a physical or virtual delivery location. organization_id is nullable: a location
+-- can be a RootNode-run venue with no partner organization at all (e.g. a rented community-
+-- center room booked directly), or "online" (type='online', every address field null).
+-- access_notes is deliberately never exposed on any student-facing route — internal
+-- operational detail only (parking instructions, building access codes, etc).
+-- ═══════════════════════════════════════════════════════════════════════════════════════════
+CREATE TABLE IF NOT EXISTS locations (
+  location_id      TEXT PRIMARY KEY,
+  organization_id  TEXT REFERENCES organizations(organization_id),
+  name              TEXT NOT NULL,
+  type              TEXT NOT NULL DEFAULT 'online' CHECK (type IN ('school', 'library', 'community_center', 'partner_facility', 'online', 'other')),
+  address_line1     TEXT,
+  address_line2     TEXT,
+  city              TEXT,
+  region            TEXT,
+  postal_code       TEXT,
+  country           TEXT,
+  timezone          TEXT,
+  capacity          INTEGER,
+  access_notes      TEXT,          -- internal/operational only — never returned by a student-facing route
+  status            TEXT NOT NULL DEFAULT 'active' CHECK (status IN ('active', 'inactive')),
+  created_at        TIMESTAMPTZ NOT NULL DEFAULT now(),
+  updated_at        TIMESTAMPTZ NOT NULL DEFAULT now()
+);
+
+-- ═══════════════════════════════════════════════════════════════════════════════════════════
+-- guardians / student_guardians — the proper foundation replacing the Phase 5C
+-- `enrollments.metadata.contact_email` workaround (left in place, unchanged, for backward
+-- compatibility with the live website integration — see docs/WEBSITE_ENROLLMENT_INTEGRATION.md).
+-- A guardian is its own identity, separate from students.email, so a parent with multiple
+-- enrolled children is ONE guardian row linked to MANY students, not a duplicated email per
+-- child. Explicitly NOT a login/auth identity in this phase — no password, no session, no
+-- portal access — see docs/STUDENT_GUARDIAN_DATA_MODEL.md for what was deliberately deferred.
+-- ═══════════════════════════════════════════════════════════════════════════════════════════
+CREATE TABLE IF NOT EXISTS guardians (
+  guardian_id   TEXT PRIMARY KEY,
+  display_name  TEXT NOT NULL,
+  email         TEXT,
+  phone         TEXT,
+  notes         TEXT,
+  created_at    TIMESTAMPTZ NOT NULL DEFAULT now(),
+  updated_at    TIMESTAMPTZ NOT NULL DEFAULT now()
+);
+
+CREATE TABLE IF NOT EXISTS student_guardians (
+  student_id                    TEXT NOT NULL REFERENCES students(student_id),
+  guardian_id                   TEXT NOT NULL REFERENCES guardians(guardian_id),
+  relationship                  TEXT NOT NULL DEFAULT 'guardian' CHECK (relationship IN ('parent', 'guardian', 'authorized_contact', 'emergency_contact')),
+  is_primary_contact            BOOLEAN NOT NULL DEFAULT false,
+  can_receive_communications    BOOLEAN NOT NULL DEFAULT true,
+  created_at                    TIMESTAMPTZ NOT NULL DEFAULT now(),
+  PRIMARY KEY (student_id, guardian_id)
+);
+CREATE INDEX IF NOT EXISTS idx_student_guardians_guardian ON student_guardians(guardian_id);

platform/api/migrations/034_phase7_offerings_registrations_agreements.sql

@@ -0,0 +1,148 @@
+-- Phase 7 §3/§12/§14/§20 — offerings (a purchasable/enrollable delivery of a program),
+-- registrations (pre-enrollment application/interest, separate from academic entitlement),
+-- agreements (versioned acceptance records, not legal text), and curriculum packages (a named,
+-- versioned reference list into EXISTING courses — never a content clone). See
+-- docs/OFFERING_AND_REGISTRATION_MODEL.md for the full reasoning and lifecycle diagrams.
+
+-- ═══════════════════════════════════════════════════════════════════════════════════════════
+-- curriculum_packages / curriculum_package_items — a named, versioned SUBSET reference into
+-- existing courses. curriculum_package_items stores no content of its own, only which
+-- course_id(s) (whole courses, matching how V1's own course granularity already works) belong
+-- to the package and in what order — exactly the same "reference, never clone" principle
+-- COURSE_CONTENT_MODEL.md already established for lab activities referencing scenario_id.
+-- ═══════════════════════════════════════════════════════════════════════════════════════════
+CREATE TABLE IF NOT EXISTS curriculum_packages (
+  curriculum_package_id  TEXT PRIMARY KEY,          -- slug, e.g. 'winter-linux-systems-v1'
+  name                    TEXT NOT NULL,
+  program_id              TEXT NOT NULL REFERENCES programs(program_id),
+  description             TEXT,
+  version                 INTEGER NOT NULL DEFAULT 1,
+  status                  TEXT NOT NULL DEFAULT 'active' CHECK (status IN ('active', 'retired')),
+  created_at              TIMESTAMPTZ NOT NULL DEFAULT now(),
+  updated_at              TIMESTAMPTZ NOT NULL DEFAULT now()
+);
+
+CREATE TABLE IF NOT EXISTS curriculum_package_items (
+  curriculum_package_id  TEXT NOT NULL REFERENCES curriculum_packages(curriculum_package_id),
+  course_id               TEXT NOT NULL REFERENCES courses(course_id),
+  sequence                INTEGER NOT NULL,
+  PRIMARY KEY (curriculum_package_id, course_id)
+);
+
+-- ═══════════════════════════════════════════════════════════════════════════════════════════
+-- offerings — connects a program (+ optional curriculum_package subset) to a delivery format,
+-- schedule, capacity, and location/organization/cohort. Status transitions are validated
+-- server-side only (offerings.js) — this table has no trigger enforcing them because the
+-- application layer is the single writer (admin routes), matching every other status-machine
+-- table in this schema (enrollments, classroom_sessions) which also rely on server-side
+-- transition logic rather than a DB trigger.
+--
+-- reserved_seats is a maintained counter, not derived via COUNT(*) at read time — capacity
+-- reservation (offerings.js's reserveSeat()) increments it with a single atomic
+-- `UPDATE ... WHERE reserved_seats < capacity RETURNING ...`, avoiding the
+-- SELECT-count-then-INSERT race explicitly flagged in this phase's authorization.
+-- ═══════════════════════════════════════════════════════════════════════════════════════════
+CREATE TABLE IF NOT EXISTS offerings (
+  offering_id              TEXT PRIMARY KEY,
+  slug                     TEXT NOT NULL UNIQUE,
+  name                     TEXT NOT NULL,
+  program_id               TEXT NOT NULL REFERENCES programs(program_id),
+  curriculum_package_id    TEXT REFERENCES curriculum_packages(curriculum_package_id),
+  delivery_mode            TEXT NOT NULL CHECK (delivery_mode IN ('self_paced', 'cohort', 'hybrid', 'camp', 'workshop', 'school', 'after_school', 'homeschool', 'community', 'one_to_one')),
+  status                   TEXT NOT NULL DEFAULT 'draft' CHECK (status IN ('draft', 'published', 'enrollment_open', 'full', 'in_progress', 'completed', 'cancelled')),
+  starts_at                TIMESTAMPTZ,
+  ends_at                  TIMESTAMPTZ,
+  enrollment_opens_at      TIMESTAMPTZ,
+  enrollment_closes_at     TIMESTAMPTZ,
+  capacity                 INTEGER,                 -- NULL = unlimited (typical for self_paced)
+  reserved_seats           INTEGER NOT NULL DEFAULT 0,
+  location_id              TEXT REFERENCES locations(location_id),
+  organization_id          TEXT REFERENCES organizations(organization_id),
+  cohort_id                TEXT REFERENCES cohorts(cohort_id),
+  recommended_min_age      INTEGER,                 -- guidance only, never an authorization gate (Step 21)
+  recommended_max_age      INTEGER,
+  description              TEXT,
+  metadata                 JSONB NOT NULL DEFAULT '{}'::jsonb,   -- room for descriptive price/marketing fields later, never payment data
+  version                  INTEGER NOT NULL DEFAULT 1,
+  created_by               UUID REFERENCES instructors(instructor_id),
+  created_at               TIMESTAMPTZ NOT NULL DEFAULT now(),
+  updated_at               TIMESTAMPTZ NOT NULL DEFAULT now(),
+  CHECK (capacity IS NULL OR reserved_seats <= capacity)
+);
+CREATE INDEX IF NOT EXISTS idx_offerings_program ON offerings(program_id);
+CREATE INDEX IF NOT EXISTS idx_offerings_status ON offerings(status);
+
+CREATE TABLE IF NOT EXISTS instructor_offerings (
+  offering_id     TEXT NOT NULL REFERENCES offerings(offering_id),
+  instructor_id   UUID NOT NULL REFERENCES instructors(instructor_id),
+  role            TEXT NOT NULL DEFAULT 'teacher',  -- reuses cohort_instructors' own role_in_cohort vocabulary — see admin-offerings-routes.js
+  created_at      TIMESTAMPTZ NOT NULL DEFAULT now(),
+  PRIMARY KEY (offering_id, instructor_id)
+);
+
+-- ═══════════════════════════════════════════════════════════════════════════════════════════
+-- offering_registrations — pre-enrollment interest/application, separate from `enrollments`
+-- (academic entitlement, unchanged). A registration MAY exist with no student_id yet (a
+-- guardian registering a not-yet-created student) and is converted to a real enrollment only at
+-- `confirmed` -> `enrollment_activated`. No payment fields — that boundary belongs to a future
+-- commerce layer entirely (Step 23).
+-- ═══════════════════════════════════════════════════════════════════════════════════════════
+CREATE TABLE IF NOT EXISTS offering_registrations (
+  registration_id           UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  offering_id               TEXT NOT NULL REFERENCES offerings(offering_id),
+  student_id                TEXT REFERENCES students(student_id),          -- null until matched/created
+  guardian_id               TEXT REFERENCES guardians(guardian_id),        -- who registered, if a minor
+  registrant_display_name   TEXT NOT NULL,       -- captured even before a student record exists
+  registrant_email          TEXT,
+  is_minor                  BOOLEAN NOT NULL DEFAULT false,
+  status                    TEXT NOT NULL DEFAULT 'started' CHECK (status IN ('started', 'submitted', 'reviewed', 'agreements_pending', 'payment_pending', 'confirmed', 'enrollment_activated', 'cancelled')),
+  readiness_notes           TEXT,
+  accessibility_notes       TEXT,
+  emergency_contact_name    TEXT,
+  emergency_contact_phone   TEXT,
+  enrollment_id             UUID REFERENCES enrollments(enrollment_id),    -- set once converted
+  source                    TEXT NOT NULL DEFAULT 'admin',
+  external_reference        TEXT,
+  metadata                  JSONB NOT NULL DEFAULT '{}'::jsonb,
+  created_at                TIMESTAMPTZ NOT NULL DEFAULT now(),
+  updated_at                TIMESTAMPTZ NOT NULL DEFAULT now(),
+  CHECK (NOT is_minor OR guardian_id IS NOT NULL)   -- a minor's registration must always carry a responsible guardian
+);
+CREATE INDEX IF NOT EXISTS idx_offering_registrations_offering ON offering_registrations(offering_id);
+CREATE INDEX IF NOT EXISTS idx_offering_registrations_status ON offering_registrations(status);
+
+-- ═══════════════════════════════════════════════════════════════════════════════════════════
+-- agreement_definitions / agreement_acceptances — a versioned ACCEPTANCE RECORD model only.
+-- No legal text is authored here (body_summary is a plain-language description for admin UI
+-- display, explicitly NOT attorney-approved legal language — see
+-- docs/STUDENT_GUARDIAN_DATA_MODEL.md's "requires legal review" list). accepted_version is
+-- captured on the acceptance row (not just looked up from the live definition) so a later
+-- edit to an agreement's text/version never retroactively reinterprets what someone actually
+-- agreed to — the same "session snapshots its own version" principle
+-- COURSE_CONTENT_MODEL.md §6b already established for assessments.
+-- ═══════════════════════════════════════════════════════════════════════════════════════════
+CREATE TABLE IF NOT EXISTS agreement_definitions (
+  agreement_id                  TEXT PRIMARY KEY,     -- slug, e.g. 'participation-agreement'
+  title                          TEXT NOT NULL,
+  body_summary                  TEXT,                 -- plain-language description, NOT legal text
+  version                        INTEGER NOT NULL DEFAULT 1,
+  requires_guardian_for_minor    BOOLEAN NOT NULL DEFAULT true,
+  status                         TEXT NOT NULL DEFAULT 'active' CHECK (status IN ('active', 'retired')),
+  created_at                     TIMESTAMPTZ NOT NULL DEFAULT now(),
+  updated_at                     TIMESTAMPTZ NOT NULL DEFAULT now()
+);
+
+CREATE TABLE IF NOT EXISTS agreement_acceptances (
+  acceptance_id              UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  agreement_id               TEXT NOT NULL REFERENCES agreement_definitions(agreement_id),
+  accepted_version            INTEGER NOT NULL,
+  accepted_by_type             TEXT NOT NULL CHECK (accepted_by_type IN ('student', 'guardian', 'instructor_on_behalf')),
+  accepted_by_student_id      TEXT REFERENCES students(student_id),
+  accepted_by_guardian_id     TEXT REFERENCES guardians(guardian_id),
+  registration_id              UUID REFERENCES offering_registrations(registration_id),
+  enrollment_id                UUID REFERENCES enrollments(enrollment_id),
+  ip_address                   TEXT,
+  accepted_at                  TIMESTAMPTZ NOT NULL DEFAULT now(),
+  CHECK (accepted_by_student_id IS NOT NULL OR accepted_by_guardian_id IS NOT NULL)
+);
+CREATE INDEX IF NOT EXISTS idx_agreement_acceptances_registration ON agreement_acceptances(registration_id);

platform/api/src/admin-offerings-routes.js

@@ -0,0 +1,182 @@
+// Phase 7 — admin/owner routes for organizations, locations, guardians, curriculum packages,
+// offerings, registrations, and agreements. RBAC convention matches admin-programs-routes.js:
+// authoring (create/transition) is admin/owner only; any instructor can list/view non-sensitive
+// data (organizations, locations, offerings). Guardian and registration detail are admin/owner
+// only — Step 17's explicit "plain instructors should not automatically get access to guardian/
+// private registration details" — a plain instructor still sees offering rosters/progress
+// through the existing cohort-scoped routes, just not guardian contact info or registration
+// notes (readiness/accessibility/emergency-contact) directly.
+
+const offerings = require('./offerings');
+const studentsAuth = require('./students-auth'); // same direct-require convention integration-routes.js already uses
+
+function errStatus(code) {
+  if (code === 'NOT_FOUND' || code === 'PROGRAM_NOT_FOUND' || code === 'OFFERING_NOT_FOUND' || code === 'COURSE_NOT_FOUND' || code === 'AGREEMENT_NOT_FOUND') return 404;
+  if (code === 'VALIDATION' || code === 'GUARDIAN_REQUIRED') return 400;
+  if (code === 'DUPLICATE_SLUG' || code === 'OFFERING_FULL' || code === 'INVALID_TRANSITION' || code === 'INVALID_STATE') return 409;
+  return 500;
+}
+
+module.exports = function registerAdminOfferingsRoutes(app, deps) {
+  const { instructorSession, rbac, getPool, recordAudit } = deps;
+  const { requireAnyInstructor, requireAdminOrOwner } = rbac;
+
+  function wrap(fn) {
+    return (req, res, next) => { Promise.resolve(fn(req, res, next)).catch(next); };
+  }
+  const admin = {
+    get: (p, ...mw) => app.get(p, instructorSession, ...mw.map(wrap)),
+    post: (p, ...mw) => app.post(p, instructorSession, ...mw.map(wrap)),
+  };
+  function handleError(res, e) {
+    if (e.code) return res.status(errStatus(e.code)).json({ error: e.code, message: e.message });
+    throw e;
+  }
+
+  // ── Organizations / Locations ──────────────────────────────────────────────────────────
+  admin.post('/api/admin/organizations', requireAdminOrOwner, async (req, res) => {
+    try {
+      const org = await offerings.createOrganization(getPool(), req.body);
+      await recordAudit(getPool(), { actorType: 'instructor', actorId: req.instructor.instructor_id, action: 'organization_create', resourceType: 'organization', resourceId: org.organization_id, result: 'success', sourceIp: req.ip });
+      res.status(201).json(org);
+    } catch (e) { handleError(res, e); }
+  });
+  admin.get('/api/admin/organizations', requireAnyInstructor, async (req, res) => {
+    res.json(await offerings.listOrganizations(getPool()));
+  });
+
+  admin.post('/api/admin/locations', requireAdminOrOwner, async (req, res) => {
+    try {
+      const loc = await offerings.createLocation(getPool(), req.body);
+      await recordAudit(getPool(), { actorType: 'instructor', actorId: req.instructor.instructor_id, action: 'location_create', resourceType: 'location', resourceId: loc.location_id, result: 'success', sourceIp: req.ip });
+      res.status(201).json(loc);
+    } catch (e) { handleError(res, e); }
+  });
+  admin.get('/api/admin/locations', requireAnyInstructor, async (req, res) => {
+    // access_notes only for admin/owner — a plain instructor sees the location, not its
+    // internal operational notes (Step 8).
+    const forInstructor = req.instructor.role === 'admin' || req.instructor.role === 'owner';
+    res.json(await offerings.listLocations(getPool(), { forInstructor }));
+  });
+
+  // ── Guardians (admin/owner only — sensitive contact data) ──────────────────────────────
+  admin.post('/api/admin/guardians', requireAdminOrOwner, async (req, res) => {
+    try {
+      const g = await offerings.createGuardian(getPool(), req.body);
+      await recordAudit(getPool(), { actorType: 'instructor', actorId: req.instructor.instructor_id, action: 'guardian_create', resourceType: 'guardian', resourceId: g.guardian_id, result: 'success', sourceIp: req.ip });
+      res.status(201).json(g);
+    } catch (e) { handleError(res, e); }
+  });
+  admin.post('/api/admin/students/:id/guardians', requireAdminOrOwner, async (req, res) => {
+    try {
+      const link = await offerings.linkStudentGuardian(getPool(), { ...req.body, studentId: req.params.id });
+      res.status(201).json(link);
+    } catch (e) { handleError(res, e); }
+  });
+  admin.get('/api/admin/students/:id/guardians', requireAdminOrOwner, async (req, res) => {
+    res.json(await offerings.listGuardiansForStudent(getPool(), req.params.id));
+  });
+
+  // ── Curriculum packages ──────────────────────────────────────────────────────────────────
+  admin.post('/api/admin/curriculum-packages', requireAdminOrOwner, async (req, res) => {
+    try {
+      const pkg = await offerings.createCurriculumPackage(getPool(), req.body);
+      res.status(201).json(pkg);
+    } catch (e) { handleError(res, e); }
+  });
+  admin.post('/api/admin/curriculum-packages/:id/items', requireAdminOrOwner, async (req, res) => {
+    try {
+      const item = await offerings.addCurriculumPackageItem(getPool(), { ...req.body, curriculumPackageId: req.params.id });
+      res.status(201).json(item);
+    } catch (e) { handleError(res, e); }
+  });
+  admin.get('/api/admin/curriculum-packages/:id', requireAnyInstructor, async (req, res) => {
+    const pkg = await offerings.getCurriculumPackage(getPool(), req.params.id);
+    if (!pkg) return res.status(404).json({ error: 'NOT_FOUND' });
+    res.json(pkg);
+  });
+
+  // ── Offerings ─────────────────────────────────────────────────────────────────────────────
+  admin.post('/api/admin/offerings', requireAdminOrOwner, async (req, res) => {
+    try {
+      const offering = await offerings.createOffering(getPool(), { ...req.body, createdBy: req.instructor.instructor_id });
+      await recordAudit(getPool(), { actorType: 'instructor', actorId: req.instructor.instructor_id, action: 'offering_create', resourceType: 'offering', resourceId: offering.offering_id, result: 'success', sourceIp: req.ip });
+      res.status(201).json(offering);
+    } catch (e) { handleError(res, e); }
+  });
+  admin.get('/api/admin/offerings', requireAnyInstructor, async (req, res) => {
+    res.json(await offerings.listOfferings(getPool(), { status: req.query.status }));
+  });
+  admin.get('/api/admin/offerings/:id', requireAnyInstructor, async (req, res) => {
+    const offering = await offerings.getOffering(getPool(), req.params.id);
+    if (!offering) return res.status(404).json({ error: 'NOT_FOUND' });
+    res.json(offering);
+  });
+  admin.post('/api/admin/offerings/:id/transition', requireAdminOrOwner, async (req, res) => {
+    try {
+      const offering = await offerings.transitionOffering(getPool(), req.params.id, req.body.status);
+      await recordAudit(getPool(), { actorType: 'instructor', actorId: req.instructor.instructor_id, action: 'offering_transition', resourceType: 'offering', resourceId: req.params.id, result: 'success', sourceIp: req.ip, metadata: { to: req.body.status } });
+      res.json(offering);
+    } catch (e) { handleError(res, e); }
+  });
+  admin.post('/api/admin/offerings/:id/instructors', requireAdminOrOwner, async (req, res) => {
+    try {
+      const link = await offerings.assignInstructorToOffering(getPool(), req.params.id, req.body.instructor_id, req.body.role);
+      res.status(201).json(link);
+    } catch (e) { handleError(res, e); }
+  });
+
+  // ── Registrations (admin/owner only) ────────────────────────────────────────────────────
+  // Validate-then-reserve, not reserve-then-validate — reserving the seat first would let a
+  // request that fails plain field validation (e.g. a minor with no guardianId) consume a real
+  // seat before ever being rejected, masking the actual validation error behind a false
+  // OFFERING_FULL once the last seat is gone. Found during this phase's own smoke testing.
+  admin.post('/api/admin/offerings/:id/registrations', requireAdminOrOwner, async (req, res) => {
+    try {
+      const reg = await offerings.createRegistration(getPool(), { ...req.body, offeringId: req.params.id });
+      try {
+        await offerings.reserveSeat(getPool(), req.params.id);
+      } catch (seatError) {
+        // Field validation passed but capacity is genuinely exhausted — the registration row
+        // it already created must not silently exist as a phantom "started" entry with no
+        // seat behind it.
+        await getPool().query(`DELETE FROM offering_registrations WHERE registration_id = $1`, [reg.registration_id]);
+        throw seatError;
+      }
+      res.status(201).json(reg);
+    } catch (e) { handleError(res, e); }
+  });
+  admin.get('/api/admin/offerings/:id/registrations', requireAdminOrOwner, async (req, res) => {
+    res.json(await offerings.listRegistrationsForOffering(getPool(), req.params.id));
+  });
+  admin.post('/api/admin/registrations/:id/transition', requireAdminOrOwner, async (req, res) => {
+    try {
+      const reg = await offerings.transitionRegistration(getPool(), req.params.id, req.body.status);
+      res.json(reg);
+    } catch (e) { handleError(res, e); }
+  });
+  admin.post('/api/admin/registrations/:id/convert', requireAdminOrOwner, async (req, res) => {
+    try {
+      const result = await offerings.convertRegistrationToEnrollment(getPool(), studentsAuth, req.params.id, req.body || {});
+      await recordAudit(getPool(), { actorType: 'instructor', actorId: req.instructor.instructor_id, action: 'registration_convert', resourceType: 'registration', resourceId: req.params.id, result: 'success', sourceIp: req.ip });
+      res.status(201).json(result);
+    } catch (e) { handleError(res, e); }
+  });
+
+  // ── Agreements ────────────────────────────────────────────────────────────────────────────
+  admin.post('/api/admin/agreements', requireAdminOrOwner, async (req, res) => {
+    try {
+      const def = await offerings.createAgreementDefinition(getPool(), req.body);
+      res.status(201).json(def);
+    } catch (e) { handleError(res, e); }
+  });
+  admin.post('/api/admin/registrations/:id/agreements', requireAdminOrOwner, async (req, res) => {
+    try {
+      const acceptance = await offerings.recordAgreementAcceptance(getPool(), { ...req.body, registrationId: req.params.id, ipAddress: req.ip });
+      res.status(201).json(acceptance);
+    } catch (e) { handleError(res, e); }
+  });
+  admin.get('/api/admin/registrations/:id/agreements', requireAdminOrOwner, async (req, res) => {
+    res.json(await offerings.listAcceptancesForRegistration(getPool(), req.params.id));
+  });
+};

platform/api/src/enrollment.js

@@ -146,7 +146,14 @@ async function createFromIntegrationEvent(pool, studentsAuth, { eventId, source,
 // handed back so a future email/notification step — not built in this phase — could relay it).
 // A second concurrent call resolving the "same new student" case falls back to re-matching
 // after a unique-constraint hit, the identical insert/on-conflict-reselect pattern used above.
-async function resolveOrCreateStudent(pool, studentsAuth, { studentEmail, studentLoginIdentifier, studentDisplayName }) {
+// `returnToken` (default false) attaches the raw activation token to the returned row as
+// `_activationToken` when a NEW student is actually created. Default OFF and never passed by
+// createFromIntegrationEvent — the public website integration endpoint's own contract
+// (docs/WEBSITE_ENROLLMENT_INTEGRATION.md) explicitly never returns this value; only Phase 7's
+// admin-only registration-conversion route (offerings.js) opts in, the same trust level an
+// instructor manually creating a student already has via POST /api/admin/students (which
+// already returns activation_token directly).
+async function resolveOrCreateStudent(pool, studentsAuth, { studentEmail, studentLoginIdentifier, studentDisplayName }, { returnToken = false } = {}) {
   const identifier = studentEmail || studentLoginIdentifier;
   if (!identifier) throw err('STUDENT_IDENTIFIER_REQUIRED', 'student.email or student.login_identifier is required.');
   const existing = await studentsAuth.getStudentByIdentifier(pool, identifier);
@@ -160,8 +167,8 @@ async function resolveOrCreateStudent(pool, studentsAuth, { studentEmail, studen
       `INSERT INTO students (student_id, display_name, email, login_identifier) VALUES ($1, $2, $3, $4) RETURNING *`,
       [studentId, displayName, studentEmail ? String(studentEmail).toLowerCase().trim() : null, studentLoginIdentifier ? String(studentLoginIdentifier).trim() : null]
     );
-    await studentsAuth.issueCredentialToken(pool, studentId, 'activation'); // token itself isn't returned by the integration endpoint — see docs/WEBSITE_ENROLLMENT_INTEGRATION.md
+    const { token } = await studentsAuth.issueCredentialToken(pool, studentId, 'activation'); // token itself isn't returned by the integration endpoint — see docs/WEBSITE_ENROLLMENT_INTEGRATION.md
-    return rows[0];
+    return returnToken ? { ...rows[0], _activationToken: token } : rows[0];
   } catch (e) {
     if (e.code === '23505') {
       const reMatched = await studentsAuth.getStudentByIdentifier(pool, identifier);
@@ -241,4 +248,8 @@ module.exports = {
   deriveEnrollmentAccess, getEnrollment, listEnrollmentsForStudent, listEnrollmentsForProgram,
   createManualEnrollment, createFromIntegrationEvent, activateEnrollment, cancelEnrollment,
   maybeCompleteEnrollment, enrollmentContactEmail,
+  // Phase 7 — offerings.js's registration-to-enrollment conversion reuses this exact
+  // create-or-match logic rather than duplicating it (a registration's eventual student is
+  // resolved the same way an integration-event or manual enrollment's student already is).
+  resolveOrCreateStudent,
 };

platform/api/src/offerings.js

@@ -0,0 +1,307 @@
+// Phase 7 — the business/product architecture's core library: organizations, locations,
+// guardians, curriculum packages, offerings, registrations, and agreement acceptances. Same
+// error convention as enrollment.js/classroom.js: throw `Error` with a `.code` the route layer
+// maps to an HTTP status. See docs/OFFERING_AND_REGISTRATION_MODEL.md for the full lifecycle
+// diagrams this file implements, and docs/STUDENT_GUARDIAN_DATA_MODEL.md for the guardian
+// model's own reasoning.
+
+const enrollmentLib = require('./enrollment');
+
+function err(code, message) {
+  return Object.assign(new Error(message || code), { code });
+}
+
+// ── Organizations / Locations ──────────────────────────────────────────────────────────────
+async function createOrganization(pool, { organizationId, name, type, contactName, contactEmail, contactPhone, notes }) {
+  if (!organizationId || !name) throw err('VALIDATION', 'organizationId and name are required.');
+  const { rows } = await pool.query(
+    `INSERT INTO organizations (organization_id, name, type, contact_name, contact_email, contact_phone, notes)
+     VALUES ($1, $2, COALESCE($3, 'other'), $4, $5, $6, $7) RETURNING *`,
+    [organizationId, name, type || null, contactName || null, contactEmail || null, contactPhone || null, notes || null]
+  );
+  return rows[0];
+}
+async function listOrganizations(pool) {
+  const { rows } = await pool.query(`SELECT * FROM organizations ORDER BY name`);
+  return rows;
+}
+
+async function createLocation(pool, { locationId, organizationId, name, type, addressLine1, addressLine2, city, region, postalCode, country, timezone, capacity, accessNotes }) {
+  if (!locationId || !name) throw err('VALIDATION', 'locationId and name are required.');
+  const { rows } = await pool.query(
+    `INSERT INTO locations (location_id, organization_id, name, type, address_line1, address_line2, city, region, postal_code, country, timezone, capacity, access_notes)
+     VALUES ($1, $2, $3, COALESCE($4, 'online'), $5, $6, $7, $8, $9, $10, $11, $12, $13) RETURNING *`,
+    [locationId, organizationId || null, name, type || null, addressLine1 || null, addressLine2 || null, city || null, region || null, postalCode || null, country || null, timezone || null, capacity || null, accessNotes || null]
+  );
+  return rows[0];
+}
+// `forInstructor` gates access_notes exactly like course-progress.js gates instructor_notes —
+// internal operational detail (building access codes, parking) never leaves the instructor
+// surface. See Step 8's explicit "protect private/internal operational notes."
+async function listLocations(pool, { forInstructor = false } = {}) {
+  const { rows } = await pool.query(`SELECT * FROM locations ORDER BY name`);
+  if (forInstructor) return rows;
+  return rows.map(({ access_notes, ...rest }) => rest);
+}
+
+// ── Guardians ───────────────────────────────────────────────────────────────────────────────
+async function createGuardian(pool, { guardianId, displayName, email, phone, notes }) {
+  if (!guardianId || !displayName) throw err('VALIDATION', 'guardianId and displayName are required.');
+  const { rows } = await pool.query(
+    `INSERT INTO guardians (guardian_id, display_name, email, phone, notes) VALUES ($1, $2, $3, $4, $5) RETURNING *`,
+    [guardianId, displayName, email ? String(email).toLowerCase().trim() : null, phone || null, notes || null]
+  );
+  return rows[0];
+}
+async function linkStudentGuardian(pool, { studentId, guardianId, relationship, isPrimaryContact, canReceiveCommunications }) {
+  if (!studentId || !guardianId) throw err('VALIDATION', 'studentId and guardianId are required.');
+  const { rows } = await pool.query(
+    `INSERT INTO student_guardians (student_id, guardian_id, relationship, is_primary_contact, can_receive_communications)
+     VALUES ($1, $2, COALESCE($3, 'guardian'), COALESCE($4, false), COALESCE($5, true))
+     ON CONFLICT (student_id, guardian_id) DO UPDATE SET relationship = EXCLUDED.relationship, is_primary_contact = EXCLUDED.is_primary_contact, can_receive_communications = EXCLUDED.can_receive_communications
+     RETURNING *`,
+    [studentId, guardianId, relationship || null, isPrimaryContact ?? null, canReceiveCommunications ?? null]
+  );
+  return rows[0];
+}
+// A plain instructor sees which students they have real cohort access to (via the caller's own
+// RBAC check on the route) — this function itself just returns the linked guardians for one
+// student, RBAC is the route layer's job, same separation of concerns as everywhere else.
+async function listGuardiansForStudent(pool, studentId) {
+  const { rows } = await pool.query(
+    `SELECT g.*, sg.relationship, sg.is_primary_contact, sg.can_receive_communications
+     FROM student_guardians sg JOIN guardians g ON g.guardian_id = sg.guardian_id
+     WHERE sg.student_id = $1 ORDER BY sg.is_primary_contact DESC, g.display_name`,
+    [studentId]
+  );
+  return rows;
+}
+
+// ── Curriculum packages (a reference list into EXISTING courses, never a clone) ─────────────
+async function createCurriculumPackage(pool, { curriculumPackageId, name, programId, description }) {
+  if (!curriculumPackageId || !name || !programId) throw err('VALIDATION', 'curriculumPackageId, name, and programId are required.');
+  const { rows: programRows } = await pool.query(`SELECT 1 FROM programs WHERE program_id = $1`, [programId]);
+  if (!programRows[0]) throw err('PROGRAM_NOT_FOUND', 'No such program.');
+  const { rows } = await pool.query(
+    `INSERT INTO curriculum_packages (curriculum_package_id, name, program_id, description) VALUES ($1, $2, $3, $4) RETURNING *`,
+    [curriculumPackageId, name, programId, description || null]
+  );
+  return rows[0];
+}
+async function addCurriculumPackageItem(pool, { curriculumPackageId, courseId, sequence }) {
+  const { rows: courseRows } = await pool.query(`SELECT 1 FROM courses WHERE course_id = $1`, [courseId]);
+  if (!courseRows[0]) throw err('COURSE_NOT_FOUND', 'No such course — a package only ever REFERENCES an existing course, never clones one.');
+  const { rows } = await pool.query(
+    `INSERT INTO curriculum_package_items (curriculum_package_id, course_id, sequence) VALUES ($1, $2, $3)
+     ON CONFLICT (curriculum_package_id, course_id) DO UPDATE SET sequence = EXCLUDED.sequence RETURNING *`,
+    [curriculumPackageId, courseId, sequence]
+  );
+  return rows[0];
+}
+async function getCurriculumPackage(pool, curriculumPackageId) {
+  const { rows: pkgRows } = await pool.query(`SELECT * FROM curriculum_packages WHERE curriculum_package_id = $1`, [curriculumPackageId]);
+  if (!pkgRows[0]) return null;
+  const { rows: items } = await pool.query(
+    `SELECT cpi.course_id, cpi.sequence, c.title, c.status FROM curriculum_package_items cpi
+     JOIN courses c ON c.course_id = cpi.course_id WHERE cpi.curriculum_package_id = $1 ORDER BY cpi.sequence`,
+    [curriculumPackageId]
+  );
+  return { ...pkgRows[0], items };
+}
+
+// ── Offerings — server-defined status transitions only (Step 3's explicit requirement) ──────
+const OFFERING_TRANSITIONS = {
+  draft: ['published', 'cancelled'],
+  published: ['enrollment_open', 'cancelled'],
+  enrollment_open: ['full', 'in_progress', 'cancelled'],
+  full: ['enrollment_open', 'in_progress', 'cancelled'],
+  in_progress: ['completed', 'cancelled'],
+  completed: [],
+  cancelled: [],
+};
+
+async function createOffering(pool, { offeringId, slug, name, programId, curriculumPackageId, deliveryMode, startsAt, endsAt, enrollmentOpensAt, enrollmentClosesAt, capacity, locationId, organizationId, cohortId, recommendedMinAge, recommendedMaxAge, description, createdBy }) {
+  if (!offeringId || !slug || !name || !programId || !deliveryMode) throw err('VALIDATION', 'offeringId, slug, name, programId, and deliveryMode are required.');
+  const { rows: programRows } = await pool.query(`SELECT 1 FROM programs WHERE program_id = $1`, [programId]);
+  if (!programRows[0]) throw err('PROGRAM_NOT_FOUND', 'No such program.');
+  try {
+    const { rows } = await pool.query(
+      `INSERT INTO offerings (offering_id, slug, name, program_id, curriculum_package_id, delivery_mode, starts_at, ends_at, enrollment_opens_at, enrollment_closes_at, capacity, location_id, organization_id, cohort_id, recommended_min_age, recommended_max_age, description, created_by)
+       VALUES ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14,$15,$16,$17,$18) RETURNING *`,
+      [offeringId, slug, name, programId, curriculumPackageId || null, deliveryMode, startsAt || null, endsAt || null, enrollmentOpensAt || null, enrollmentClosesAt || null, capacity ?? null, locationId || null, organizationId || null, cohortId || null, recommendedMinAge ?? null, recommendedMaxAge ?? null, description || null, createdBy || null]
+    );
+    return rows[0];
+  } catch (e) {
+    if (e.code === '23505') throw err('DUPLICATE_SLUG', 'An offering with this slug already exists.');
+    throw e;
+  }
+}
+async function getOffering(pool, offeringId) {
+  const { rows } = await pool.query(`SELECT * FROM offerings WHERE offering_id = $1`, [offeringId]);
+  return rows[0] || null;
+}
+async function listOfferings(pool, { status } = {}) {
+  const { rows } = await pool.query(
+    status ? `SELECT * FROM offerings WHERE status = $1 ORDER BY created_at DESC` : `SELECT * FROM offerings ORDER BY created_at DESC`,
+    status ? [status] : []
+  );
+  return rows;
+}
+async function transitionOffering(pool, offeringId, toStatus) {
+  const offering = await getOffering(pool, offeringId);
+  if (!offering) throw err('NOT_FOUND', 'No such offering.');
+  const allowed = OFFERING_TRANSITIONS[offering.status] || [];
+  if (!allowed.includes(toStatus)) throw err('INVALID_TRANSITION', `Cannot move an offering from '${offering.status}' to '${toStatus}'.`);
+  const { rows } = await pool.query(`UPDATE offerings SET status = $2, version = version + 1, updated_at = now() WHERE offering_id = $1 RETURNING *`, [offeringId, toStatus]);
+  return rows[0];
+}
+async function assignInstructorToOffering(pool, offeringId, instructorId, role) {
+  const { rows } = await pool.query(
+    `INSERT INTO instructor_offerings (offering_id, instructor_id, role) VALUES ($1, $2, COALESCE($3, 'teacher'))
+     ON CONFLICT (offering_id, instructor_id) DO UPDATE SET role = EXCLUDED.role RETURNING *`,
+    [offeringId, instructorId, role || null]
+  );
+  return rows[0];
+}
+
+// Single atomic UPDATE, not SELECT-count-then-INSERT — see 034_phase7_....sql's own header
+// comment for why this specific shape avoids the race the authorization explicitly warned
+// against. A NULL capacity offering (typical for self_paced) never needs reservation at all.
+async function reserveSeat(pool, offeringId) {
+  const offering = await getOffering(pool, offeringId);
+  if (!offering) throw err('NOT_FOUND', 'No such offering.');
+  if (offering.capacity === null) return offering; // unlimited — nothing to reserve
+  const { rows } = await pool.query(
+    `UPDATE offerings SET reserved_seats = reserved_seats + 1, updated_at = now()
+     WHERE offering_id = $1 AND reserved_seats < capacity RETURNING *`,
+    [offeringId]
+  );
+  if (!rows[0]) throw err('OFFERING_FULL', 'This offering has no remaining capacity.');
+  return rows[0];
+}
+async function releaseSeat(pool, offeringId) {
+  const { rows } = await pool.query(
+    `UPDATE offerings SET reserved_seats = GREATEST(reserved_seats - 1, 0), updated_at = now() WHERE offering_id = $1 RETURNING *`,
+    [offeringId]
+  );
+  return rows[0];
+}
+
+// ── Registrations ────────────────────────────────────────────────────────────────────────────
+const REGISTRATION_TRANSITIONS = {
+  started: ['submitted', 'cancelled'],
+  submitted: ['reviewed', 'agreements_pending', 'payment_pending', 'confirmed', 'cancelled'],
+  reviewed: ['agreements_pending', 'payment_pending', 'confirmed', 'cancelled'],
+  agreements_pending: ['payment_pending', 'confirmed', 'cancelled'],
+  payment_pending: ['confirmed', 'cancelled'],
+  confirmed: ['enrollment_activated', 'cancelled'],
+  enrollment_activated: [],
+  cancelled: [],
+};
+
+async function createRegistration(pool, { offeringId, guardianId, registrantDisplayName, registrantEmail, isMinor, readinessNotes, accessibilityNotes, emergencyContactName, emergencyContactPhone, source, externalReference }) {
+  if (!offeringId || !registrantDisplayName) throw err('VALIDATION', 'offeringId and registrantDisplayName are required.');
+  if (isMinor && !guardianId) throw err('GUARDIAN_REQUIRED', 'A minor registration must include a guardianId.');
+  const offering = await getOffering(pool, offeringId);
+  if (!offering) throw err('OFFERING_NOT_FOUND', 'No such offering.');
+  const { rows } = await pool.query(
+    `INSERT INTO offering_registrations (offering_id, guardian_id, registrant_display_name, registrant_email, is_minor, readiness_notes, accessibility_notes, emergency_contact_name, emergency_contact_phone, source, external_reference)
+     VALUES ($1,$2,$3,$4,COALESCE($5,false),$6,$7,$8,$9,COALESCE($10,'admin'),$11) RETURNING *`,
+    [offeringId, guardianId || null, registrantDisplayName, registrantEmail || null, isMinor ?? null, readinessNotes || null, accessibilityNotes || null, emergencyContactName || null, emergencyContactPhone || null, source || null, externalReference || null]
+  );
+  return rows[0];
+}
+async function getRegistration(pool, registrationId) {
+  const { rows } = await pool.query(`SELECT * FROM offering_registrations WHERE registration_id = $1`, [registrationId]);
+  return rows[0] || null;
+}
+async function listRegistrationsForOffering(pool, offeringId) {
+  const { rows } = await pool.query(`SELECT * FROM offering_registrations WHERE offering_id = $1 ORDER BY created_at`, [offeringId]);
+  return rows;
+}
+async function transitionRegistration(pool, registrationId, toStatus) {
+  const reg = await getRegistration(pool, registrationId);
+  if (!reg) throw err('NOT_FOUND', 'No such registration.');
+  const allowed = REGISTRATION_TRANSITIONS[reg.status] || [];
+  if (!allowed.includes(toStatus)) throw err('INVALID_TRANSITION', `Cannot move a registration from '${reg.status}' to '${toStatus}'.`);
+  if (toStatus === 'cancelled' && !['enrollment_activated', 'cancelled'].includes(reg.status)) await releaseSeat(pool, reg.offering_id);
+  const { rows } = await pool.query(`UPDATE offering_registrations SET status = $2, updated_at = now() WHERE registration_id = $1 RETURNING *`, [registrationId, toStatus]);
+  return rows[0];
+}
+
+// The one place a registration becomes a real academic enrollment. Reuses
+// enrollment.js's resolveOrCreateStudent/createManualEnrollment/activateEnrollment rather than
+// duplicating student-matching or enrollment-creation logic — see that file's own comment on
+// why resolveOrCreateStudent is now exported. Cohort membership (if the offering has a cohort)
+// is created here too, using the existing cohort_enrollments table unchanged.
+async function convertRegistrationToEnrollment(pool, studentsAuth, registrationId, { activate = true } = {}) {
+  const reg = await getRegistration(pool, registrationId);
+  if (!reg) throw err('NOT_FOUND', 'No such registration.');
+  if (reg.status !== 'confirmed') throw err('INVALID_STATE', 'A registration must be confirmed before it can become an enrollment.');
+  const offering = await getOffering(pool, reg.offering_id);
+  if (!offering) throw err('OFFERING_NOT_FOUND', 'No such offering.');
+
+  const student = reg.student_id
+    ? (await pool.query(`SELECT * FROM students WHERE student_id = $1`, [reg.student_id])).rows[0]
+    : await enrollmentLib.resolveOrCreateStudent(pool, studentsAuth, {
+        studentEmail: reg.is_minor ? null : reg.registrant_email,
+        studentLoginIdentifier: reg.is_minor ? `reg-${reg.registration_id}` : null,
+        studentDisplayName: reg.registrant_display_name,
+      }, { returnToken: true }); // admin-only surface — see enrollment.js's own comment on why this is safe here but not on the public integration endpoint
+
+  const enrollment = await enrollmentLib.createManualEnrollment(pool, {
+    studentId: student.student_id, programId: offering.program_id,
+    status: activate ? 'active' : 'pending', deliveryMode: offering.delivery_mode,
+    externalReference: reg.external_reference,
+    metadata: reg.is_minor && reg.registrant_email ? { contact_email: reg.registrant_email } : null,
+  });
+
+  if (offering.cohort_id) {
+    await pool.query(
+      `INSERT INTO cohort_enrollments (cohort_id, student_id) VALUES ($1, $2) ON CONFLICT DO NOTHING`,
+      [offering.cohort_id, student.student_id]
+    );
+  }
+
+  await pool.query(
+    `UPDATE offering_registrations SET student_id = $2, enrollment_id = $3, status = 'enrollment_activated', updated_at = now() WHERE registration_id = $1`,
+    [registrationId, student.student_id, enrollment.enrollment_id]
+  );
+  return { student, enrollment };
+}
+
+// ── Agreements ────────────────────────────────────────────────────────────────────────────────
+async function createAgreementDefinition(pool, { agreementId, title, bodySummary, requiresGuardianForMinor }) {
+  if (!agreementId || !title) throw err('VALIDATION', 'agreementId and title are required.');
+  const { rows } = await pool.query(
+    `INSERT INTO agreement_definitions (agreement_id, title, body_summary, requires_guardian_for_minor) VALUES ($1, $2, $3, COALESCE($4, true)) RETURNING *`,
+    [agreementId, title, bodySummary || null, requiresGuardianForMinor ?? null]
+  );
+  return rows[0];
+}
+async function recordAgreementAcceptance(pool, { agreementId, acceptedByType, acceptedByStudentId, acceptedByGuardianId, registrationId, enrollmentId, ipAddress }) {
+  const { rows: defRows } = await pool.query(`SELECT * FROM agreement_definitions WHERE agreement_id = $1`, [agreementId]);
+  const def = defRows[0];
+  if (!def) throw err('AGREEMENT_NOT_FOUND', 'No such agreement.');
+  if (!acceptedByStudentId && !acceptedByGuardianId) throw err('VALIDATION', 'An acceptance must be tied to a student or a guardian.');
+  const { rows } = await pool.query(
+    `INSERT INTO agreement_acceptances (agreement_id, accepted_version, accepted_by_type, accepted_by_student_id, accepted_by_guardian_id, registration_id, enrollment_id, ip_address)
+     VALUES ($1,$2,$3,$4,$5,$6,$7,$8) RETURNING *`,
+    [agreementId, def.version, acceptedByType, acceptedByStudentId || null, acceptedByGuardianId || null, registrationId || null, enrollmentId || null, ipAddress || null]
+  );
+  return rows[0];
+}
+async function listAcceptancesForRegistration(pool, registrationId) {
+  const { rows } = await pool.query(`SELECT * FROM agreement_acceptances WHERE registration_id = $1 ORDER BY accepted_at`, [registrationId]);
+  return rows;
+}
+
+module.exports = {
+  createOrganization, listOrganizations,
+  createLocation, listLocations,
+  createGuardian, linkStudentGuardian, listGuardiansForStudent,
+  createCurriculumPackage, addCurriculumPackageItem, getCurriculumPackage,
+  createOffering, getOffering, listOfferings, transitionOffering, assignInstructorToOffering, reserveSeat, releaseSeat,
+  createRegistration, getRegistration, listRegistrationsForOffering, transitionRegistration, convertRegistrationToEnrollment,
+  createAgreementDefinition, recordAgreementAcceptance, listAcceptancesForRegistration,
+};

platform/api/src/server.js

@@ -413,6 +413,14 @@ require('./notification-routes')(app, {
   instructorSession: wrap(instructorSession), rbac, getPool, recordAudit,
 });
 
+// Phase 7 — the business/product architecture: organizations, locations, guardians,
+// curriculum packages, offerings, registrations, and agreements. Admin/owner surface only —
+// no student-facing routes yet (registration is admin-entered this phase; a future public
+// registration flow is a Phase 8+ decision, see docs/OFFERING_AND_REGISTRATION_MODEL.md).
+require('./admin-offerings-routes')(app, {
+  instructorSession: wrap(instructorSession), rbac, getPool, recordAudit,
+});
+
 // Fallback to the platform-shell SPA for any unmatched non-API route
 app.get('*', (req, res) => {
   res.sendFile(path.join(FRONTEND_DIST, 'index.html'));