chore: promote dev→uat for GRO-1592 SSO session cookie fix

- Fixed frontend auth client baseURL fallback to use window.location.origin
- Added UAT test coverage (TC-AUTH-5.3.4)

Co-Authored-By: Paperclip <noreply@paperclip.ing>

UAT_PLAYBOOK.md

@@ -69,6 +69,7 @@ export const { signIn, signOut, useSession, changePassword } = authClient;
 | TC-AUTH-5.3.1 | Auth client falls back to window.location.origin | Do not set `VITE_API_URL`, load app | Auth client uses `window.location.origin` as base URL |
 | TC-AUTH-5.3.2 | Sign-in on localhost | Load app without `VITE_API_URL` on localhost:3000 | Auth client uses `http://localhost:3000` as base URL |
 | TC-AUTH-5.3.3 | Sign-in on dev environment | Load app without `VITE_API_URL` on `https://dev.groombook.dev` | Auth client uses `https://dev.groombook.dev` as base URL |
+| TC-AUTH-5.3.4 | SSO cookie set after Authentik callback (GRO-1592) | Complete Authentik SSO login on UAT without `VITE_API_URL` set | `__Secure-better-auth.session_token` cookie is present in browser; subsequent `/api/*` calls include the cookie and return 200 |
 
 ### 5.4 Session Persistence
 
@@ -103,6 +104,20 @@ export const { signIn, signOut, useSession, changePassword } = authClient;
 | TC-WEB-5.7.2 | Add pet | Click "Add Pet", fill form, submit | Pet created and linked to client |
 | TC-WEB-5.7.3 | Edit pet details | Click on pet, modify details, save | Pet updated successfully |
 | TC-WEB-5.7.4 | Grooming history view | View pet profile | Past appointments/grooming sessions displayed |
+| TC-WEB-5.7.5 | Add pet with size/coat | Create pet with Size Category and Coat Type filled | Size and coat type persisted, visible on pet profile |
+| TC-WEB-5.7.6 | Edit pet size/coat | Edit existing pet, change size/coat dropdowns | Updated values saved to pet record |
+| TC-WEB-5.7.7 | Size/coat optional | Create pet without selecting size or coat | Pet created successfully, fields remain unset |
+
+### 5.8.1 Buffer Rules Management UI (GRO-1173)
+
+| # | Scenario | Steps | Expected |
+|---|----------|-------|----------|
+| TC-WEB-5.8.2 | Buffer rules section visible | Navigate to Settings | "Buffer Rules" section shown with description |
+| TC-WEB-5.8.3 | Create buffer rule | Click "+ Add Rule", select service and buffer minutes, submit | Rule appears in list, matches service/size/coat |
+| TC-WEB-5.8.4 | Edit buffer minutes inline | Click Edit on a rule, change minutes, click Save | New buffer value reflected in list |
+| TC-WEB-5.8.5 | Delete buffer rule | Click Delete, confirm | Rule removed from list |
+| TC-WEB-5.8.6 | Create rule with size/coat | Create rule with Size Category or Coat Type specified | Rule shows size/coat tags in list |
+| TC-WEB-5.8.7 | Empty state | Navigate to Settings with no rules | "No buffer rules configured yet" message shown |
 
 ### 5.8 Appointment Scheduling UI
 
@@ -121,6 +136,8 @@ export const { signIn, signOut, useSession, changePassword } = authClient;
 | TC-WEB-5.9.1 | Service catalog loads | Navigate to Services | List of available services displayed |
 | TC-WEB-5.9.2 | Create service | Click "New Service", fill form, submit | Service created successfully |
 | TC-WEB-5.9.3 | Edit service | Click on service, modify details, save | Service updated successfully |
+| TC-WEB-5.9.4 | Create service with default buffer | Create service with "Default buffer time" filled | Buffer shown in service list and form after save |
+| TC-WEB-5.9.5 | Edit service buffer | Open existing service, change default buffer minutes | Updated value persisted after save |
 
 ### 5.10 Staff Management UI
 
@@ -216,6 +233,57 @@ export const { signIn, signOut, useSession, changePassword } = authClient;
 | TC-WEB-5.19.8 | Form reset clears size/coat | Complete booking, click "Book another" | Size and coat fields reset to empty |
 | TC-WEB-5.19.9 | New pet record has size/coat | Complete booking, view created pet in admin | Pet record shows selected size and coat type |
 
+### 5.20 Buffer Rules Management — Admin UI (GRO-1173)
+
+| # | Scenario | Steps | Expected |
+|---|----------|-------|----------|
+| TC-WEB-5.20.1 | Buffer rules section loads | Navigate to Settings page (admin) | "Buffer Rules" section visible with "+ Add Rule" button |
+| TC-WEB-5.20.2 | Add rule — required fields only | Click "+ Add Rule", select a service, enter buffer minutes, submit | Rule created, appears in list below |
+| TC-WEB-5.20.3 | Add rule — with size category | Add rule, select service + size category + buffer minutes | Rule created with size tag shown in list |
+| TC-WEB-5.20.4 | Add rule — with coat type | Add rule, select service + coat type + buffer minutes | Rule created with coat tag shown in list |
+| TC-WEB-5.20.5 | Add rule — with both size and coat | Add rule, select service + size + coat + buffer minutes | Rule created with both tags shown |
+| TC-WEB-5.20.6 | Validation — missing service | Submit form without selecting service | Error: "Service and valid buffer minutes are required" |
+| TC-WEB-5.20.7 | Validation — zero buffer | Submit form with 0 buffer minutes | Error: "Service and valid buffer minutes are required" |
+| TC-WEB-5.20.8 | Edit rule inline | Click "Edit" on a rule, change buffer value, click "Save" | Rule updated in list |
+| TC-WEB-5.20.9 | Cancel edit | Click "Edit", then "Cancel" | Original value unchanged |
+| TC-WEB-5.20.10 | Delete rule — confirmation | Click "Delete" on a rule | Confirmation prompt appears |
+| TC-WEB-5.20.11 | Confirm delete | On confirmation prompt, click "Confirm" | Rule removed from list |
+| TC-WEB-5.20.12 | Cancel delete | On confirmation prompt, click "Cancel" | Rule remains in list |
+| TC-WEB-5.20.13 | Empty state | No rules exist | Message: "No buffer rules configured yet." |
+| TC-WEB-5.20.14 | Toggle form | Click "+ Add Rule", then "Cancel" | Form hidden, no rule created |
+
+### 5.21 Service Default Buffer Minutes (GRO-1173)
+
+| # | Scenario | Steps | Expected |
+|---|----------|-------|----------|
+| TC-WEB-5.21.1 | Default buffer shown in table | Navigate to Services page | "Default Buffer" column visible in services table |
+| TC-WEB-5.21.2 | New service default is 0 | Click "+ Add Service" | Default Buffer field pre-filled with 0 |
+| TC-WEB-5.21.3 | Create service with buffer | Fill service form, set Default Buffer = 10, submit | Service created with 10 min default buffer |
+| TC-WEB-5.21.4 | Edit service — view buffer | Edit an existing service | Current default buffer value shown in form |
+| TC-WEB-5.21.5 | Update buffer on existing service | Edit service, change Default Buffer to 15, save | Buffer updated, table shows 15 min |
+| TC-WEB-5.21.6 | Buffer field — zero allowed | Set Default Buffer to 0, save | Service saved with 0 (no default buffer) |
+| TC-WEB-5.21.7 | Buffer field — integer only | Enter non-integer value | Field restricts to integer values |
+
+### 5.22 Pet Profile — Size Category & Coat Type (GRO-1173)
+
+| # | Scenario | Steps | Expected |
+|---|----------|-------|----------|
+| TC-WEB-5.22.1 | Size category dropdown visible | Open Add Pet or Edit Pet form (portal) | "Size Category" dropdown visible with options: Small, Medium, Large, X-Large |
+| TC-WEB-5.22.2 | Coat type dropdown visible | Open Add Pet or Edit Pet form | "Coat Type" dropdown visible with options: Smooth, Double, Curly, Wire, Long, Hairless |
+| TC-WEB-5.22.3 | Size and coat both optional | Submit pet form without selecting size or coat | Pet saved successfully |
+| TC-WEB-5.22.4 | Save pet with size category | Select "Large", fill required fields, save | Pet saved with size = "large" |
+| TC-WEB-5.22.5 | Save pet with coat type | Select "Curly", fill required fields, save | Pet saved with coat = "curly" |
+| TC-WEB-5.22.6 | Size and coat persisted | Save pet with size + coat, edit again | Both fields retain their selected values |
+| TC-WEB-5.22.7 | Clear size | Select size, then clear back to default | Size cleared on save |
+
+### 5.23 Pet Profile — API Persistence & Save UX (GRO-1470)
+
+| # | Scenario | Steps | Expected |
+|---|----------|-------|----------|
+| TC-WEB-5.23.1 | Save pet — API persistence | Edit a pet, change a field (e.g. coat type), click Save, reload the page | Changed field retained after reload (proves PATCH round-trip to server) |
+| TC-WEB-5.23.2 | Save pet — error state | Trigger an API save failure (e.g. network error) | Error message displayed; edit form stays open; no data cleared |
+| TC-WEB-5.23.3 | Save pet — saving indicator | Click Save | Spinner/indicator shown while request is in flight; form controls disabled |
+
 ## 6. Pass/Fail Criteria
 
 **Pass:**

packages/types/src/index.ts

@@ -71,6 +71,7 @@ export interface Service {
   basePriceCents: number;
   durationMinutes: number;
   active: boolean;
+  defaultBufferMinutes?: number;
   createdAt: string;
   updatedAt: string;
 }

src/components/BufferRules.tsx

@@ -0,0 +1,282 @@
+import { useEffect, useState } from "react";
+import { Loader2 } from "lucide-react";
+
+interface Service {
+  id: string;
+  name: string;
+  description?: string;
+  basePriceCents: number;
+  durationMinutes: number;
+  active: boolean;
+}
+
+interface BufferRule {
+  id: string;
+  serviceId: string;
+  serviceName: string;
+  sizeCategory?: string;
+  coatType?: string;
+  bufferMinutes: number;
+  createdAt: string;
+  updatedAt: string;
+}
+
+interface BufferRuleForm {
+  serviceId: string;
+  sizeCategory: string;
+  coatType: string;
+  bufferMinutes: string;
+}
+
+const EMPTY_FORM: BufferRuleForm = {
+  serviceId: "",
+  sizeCategory: "",
+  coatType: "",
+  bufferMinutes: "",
+};
+
+const SIZE_OPTIONS = ["", "small", "medium", "large", "xlarge"] as const;
+const COAT_OPTIONS = ["", "smooth", "double", "wire", "curly", "long", "hairless"] as const;
+
+export function BufferRulesSection() {
+  const [rules, setRules] = useState<BufferRule[]>([]);
+  const [services, setServices] = useState<Service[]>([]);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState<string | null>(null);
+  const [showForm, setShowForm] = useState(false);
+  const [form, setForm] = useState<BufferRuleForm>(EMPTY_FORM);
+  const [saving, setSaving] = useState(false);
+  const [formError, setFormError] = useState<string | null>(null);
+  const [deletingId, setDeletingId] = useState<string | null>(null);
+  const [confirmDeleteId, setConfirmDeleteId] = useState<string | null>(null);
+  const [editingId, setEditingId] = useState<string | null>(null);
+  const [editBuffer, setEditBuffer] = useState<string>("");
+
+  useEffect(() => {
+    Promise.all([
+      fetch("/api/buffer-rules").then(r => r.ok ? r.json() : []),
+      fetch("/api/services?includeInactive=true").then(r => r.ok ? r.json() : []),
+    ]).then(([rulesData, servicesData]) => {
+      setRules(rulesData as BufferRule[]);
+      setServices(servicesData as Service[]);
+    }).catch(() => setError("Failed to load")).finally(() => setLoading(false));
+  }, []);
+
+  async function handleCreate(e: React.FormEvent) {
+    e.preventDefault();
+    const mins = parseInt(form.bufferMinutes);
+    if (!form.serviceId || isNaN(mins) || mins <= 0) {
+      setFormError("Service and valid buffer minutes are required.");
+      return;
+    }
+    setSaving(true);
+    setFormError(null);
+    try {
+      const body: Record<string, string | number> = {
+        serviceId: form.serviceId,
+        bufferMinutes: mins,
+      };
+      if (form.sizeCategory) body.sizeCategory = form.sizeCategory;
+      if (form.coatType) body.coatType = form.coatType;
+      const res = await fetch("/api/buffer-rules", {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify(body),
+      });
+      if (!res.ok) {
+        const err = await res.json().catch(() => ({})) as { error?: string };
+        throw new Error(err.error ?? `HTTP ${res.status}`);
+      }
+      const newRule = await res.json() as BufferRule;
+      setRules(prev => [...prev, newRule]);
+      setShowForm(false);
+      setForm(EMPTY_FORM);
+    } catch (e: unknown) {
+      setFormError(e instanceof Error ? e.message : "Failed to create rule");
+    } finally {
+      setSaving(false);
+    }
+  }
+
+  async function handleDelete(id: string) {
+    setDeletingId(id);
+    try {
+      await fetch(`/api/buffer-rules/${id}`, { method: "DELETE" });
+      setRules(prev => prev.filter(r => r.id !== id));
+    } finally {
+      setDeletingId(null);
+      setConfirmDeleteId(null);
+    }
+  }
+
+  function startEdit(rule: BufferRule) {
+    setEditingId(rule.id);
+    setEditBuffer(String(rule.bufferMinutes));
+  }
+
+  async function saveEdit(rule: BufferRule) {
+    const mins = parseInt(editBuffer);
+    if (isNaN(mins) || mins <= 0) return;
+    setSaving(true);
+    try {
+      const res = await fetch(`/api/buffer-rules/${rule.id}`, {
+        method: "PATCH",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({ bufferMinutes: mins }),
+      });
+      if (!res.ok) throw new Error(`HTTP ${res.status}`);
+      const updated = await res.json() as BufferRule;
+      setRules(prev => prev.map(r => r.id === updated.id ? updated : r));
+    } catch {
+      // silent fail
+    } finally {
+      setSaving(false);
+      setEditingId(null);
+      setEditBuffer("");
+    }
+  }
+
+  if (loading) {
+    return (
+      <div className="flex items-center justify-center py-8">
+        <Loader2 size={20} className="animate-spin text-stone-400" />
+      </div>
+    );
+  }
+
+  if (error) {
+    return (
+      <div className="py-4 text-sm text-red-500">{error}</div>
+    );
+  }
+
+  return (
+    <div>
+      <div className="flex items-center justify-between mb-4">
+        <div>
+          <h2 className="text-base font-semibold text-stone-800">Buffer Rules</h2>
+          <p className="text-sm text-stone-500">Extra time rules per service / pet size / coat type</p>
+        </div>
+        <button
+          onClick={() => { setShowForm(!showForm); setFormError(null); }}
+          className="px-3 py-1.5 bg-(--color-primary) text-white text-sm rounded-lg hover:bg-(--color-primary-hover)"
+        >
+          {showForm ? "Cancel" : "+ Add Rule"}
+        </button>
+      </div>
+
+      {showForm && (
+        <form onSubmit={handleCreate} className="mb-6 p-4 bg-stone-50 rounded-xl border border-stone-200 space-y-3">
+          <div className="grid grid-cols-1 sm:grid-cols-2 gap-3">
+            <div>
+              <label className="block text-xs font-medium text-stone-600 mb-1">Service *</label>
+              <select
+                value={form.serviceId}
+                onChange={e => setForm(f => ({ ...f, serviceId: e.target.value }))}
+                required
+                className="w-full border border-stone-200 rounded-lg px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-(--color-accent)"
+              >
+                <option value="">Select service…</option>
+                {services.map(s => (
+                  <option key={s.id} value={s.id}>{s.name}</option>
+                ))}
+              </select>
+            </div>
+            <div>
+              <label className="block text-xs font-medium text-stone-600 mb-1">Buffer (minutes) *</label>
+              <input
+                type="number"
+                min="1"
+                step="1"
+                value={form.bufferMinutes}
+                onChange={e => setForm(f => ({ ...f, bufferMinutes: e.target.value }))}
+                required
+                className="w-full border border-stone-200 rounded-lg px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-(--color-accent)"
+              />
+            </div>
+            <div>
+              <label className="block text-xs font-medium text-stone-600 mb-1">Size Category</label>
+              <select
+                value={form.sizeCategory}
+                onChange={e => setForm(f => ({ ...f, sizeCategory: e.target.value }))}
+                className="w-full border border-stone-200 rounded-lg px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-(--color-accent)"
+              >
+                <option value="">Any</option>
+                {SIZE_OPTIONS.filter(s => s).map(s => (
+                  <option key={s} value={s}>{s.charAt(0).toUpperCase() + s.slice(1)}</option>
+                ))}
+              </select>
+            </div>
+            <div>
+              <label className="block text-xs font-medium text-stone-600 mb-1">Coat Type</label>
+              <select
+                value={form.coatType}
+                onChange={e => setForm(f => ({ ...f, coatType: e.target.value }))}
+                className="w-full border border-stone-200 rounded-lg px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-(--color-accent)"
+              >
+                <option value="">Any</option>
+                {COAT_OPTIONS.filter(c => c).map(c => (
+                  <option key={c} value={c}>{c.charAt(0).toUpperCase() + c.slice(1)}</option>
+                ))}
+              </select>
+            </div>
+          </div>
+          {formError && <p className="text-sm text-red-500">{formError}</p>}
+          <button
+            type="submit"
+            disabled={saving}
+            className="px-4 py-2 bg-(--color-primary) text-white text-sm rounded-lg hover:bg-(--color-primary-hover) disabled:opacity-60"
+          >
+            {saving ? "Saving…" : "Create Rule"}
+          </button>
+        </form>
+      )}
+
+      {rules.length === 0 && !showForm ? (
+        <p className="text-sm text-stone-400 py-6 text-center">No buffer rules configured yet.</p>
+      ) : (
+        <div className="space-y-2">
+          {rules.map(rule => (
+            <div key={rule.id} className="flex items-center gap-3 p-3 bg-white rounded-xl border border-stone-200">
+              <div className="flex-1 min-w-0">
+                <div className="text-sm font-medium text-stone-800 truncate">{rule.serviceName}</div>
+                <div className="text-xs text-stone-500 flex gap-2 flex-wrap">
+                  {rule.sizeCategory && <span>Size: {rule.sizeCategory}</span>}
+                  {rule.coatType && <span>Coat: {rule.coatType}</span>}
+                </div>
+              </div>
+              {editingId === rule.id ? (
+                <div className="flex items-center gap-2">
+                  <input
+                    type="number"
+                    min="1"
+                    value={editBuffer}
+                    onChange={e => setEditBuffer(e.target.value)}
+                    className="w-20 border border-stone-200 rounded px-2 py-1 text-sm"
+                  />
+                  <span className="text-xs text-stone-500">min</span>
+                  <button onClick={() => saveEdit(rule)} disabled={saving} className="text-xs text-green-600 font-medium">Save</button>
+                  <button onClick={() => setEditingId(null)} className="text-xs text-stone-500">Cancel</button>
+                </div>
+              ) : (
+                <>
+                  <span className="text-sm font-medium text-stone-700">{rule.bufferMinutes} min</span>
+                  <button onClick={() => startEdit(rule)} className="text-xs text-stone-500 hover:text-stone-700 px-2">Edit</button>
+                </>
+              )}
+              {confirmDeleteId === rule.id ? (
+                <div className="flex items-center gap-2">
+                  <span className="text-xs text-red-500">Delete?</span>
+                  <button onClick={() => handleDelete(rule.id)} disabled={deletingId === rule.id} className="text-xs text-red-600 font-medium">Confirm</button>
+                  <button onClick={() => setConfirmDeleteId(null)} className="text-xs text-stone-500">Cancel</button>
+                </div>
+              ) : (
+                <button onClick={() => setConfirmDeleteId(rule.id)} className="text-xs text-red-400 hover:text-red-600">Delete</button>
+              )}
+            </div>
+          ))}
+        </div>
+      )}
+    </div>
+  );
+}

src/lib/auth-client.ts

@@ -1,7 +1,7 @@
 import { createAuthClient } from "better-auth/react";
 
 export const authClient = createAuthClient({
-  baseURL: import.meta.env.VITE_API_URL ?? "",
+  baseURL: import.meta.env.VITE_API_URL || (typeof window !== "undefined" ? window.location.origin : ""),
 });
 
 export const { signIn, signOut, useSession, changePassword } = authClient;

src/pages/Clients.tsx

@@ -25,6 +25,8 @@ interface PetForm {
   cutStyle: string;
   shampooPreference: string;
   specialCareNotes: string;
+  coatType: string;
+  sizeCategory: string;
 }
 
 interface VisitLogForm {
@@ -38,6 +40,7 @@ const EMPTY_CLIENT: ClientForm = { name: "", email: "", phone: "", address: "",
 const EMPTY_PET: PetForm = {
   name: "", species: "Dog", breed: "", weightStr: "", dob: "",
   healthAlerts: "", groomingNotes: "", cutStyle: "", shampooPreference: "", specialCareNotes: "",
+  coatType: "", sizeCategory: "",
 };
 const EMPTY_VISIT_LOG: VisitLogForm = { cutStyle: "", productsUsed: "", notes: "", groomedAt: "" };
 
@@ -209,6 +212,8 @@ export function ClientsPage() {
       cutStyle: p.cutStyle ?? "",
       shampooPreference: p.shampooPreference ?? "",
       specialCareNotes: p.specialCareNotes ?? "",
+      coatType: p.coatType ?? "",
+      sizeCategory: p.petSizeCategory ?? "",
     });
     setPetFormError(null);
     setShowPetForm(true);
@@ -315,6 +320,8 @@ export function ClientsPage() {
         cutStyle: petForm.cutStyle || undefined,
         shampooPreference: petForm.shampooPreference || undefined,
         specialCareNotes: petForm.specialCareNotes || undefined,
+        coatType: petForm.coatType || undefined,
+        petSizeCategory: petForm.sizeCategory || undefined,
       };
       const res = editingPet
         ? await fetch(`/api/pets/${editingPet.id}`, { method: "PATCH", headers: { "Content-Type": "application/json" }, body: JSON.stringify(body) })
@@ -690,6 +697,34 @@ export function ClientsPage() {
             <Field label="Breed (optional)">
               <input value={petForm.breed} onChange={(e) => setPetForm((f) => ({ ...f, breed: e.target.value }))} style={inputStyle} />
             </Field>
+            <Field label="Size Category (optional)">
+              <select
+                value={petForm.sizeCategory}
+                onChange={(e) => setPetForm((f) => ({ ...f, sizeCategory: e.target.value }))}
+                style={inputStyle}
+              >
+                <option value="">Not set</option>
+                <option value="small">Small</option>
+                <option value="medium">Medium</option>
+                <option value="large">Large</option>
+                <option value="xlarge">X-Large</option>
+              </select>
+            </Field>
+            <Field label="Coat Type (optional)">
+              <select
+                value={petForm.coatType}
+                onChange={(e) => setPetForm((f) => ({ ...f, coatType: e.target.value }))}
+                style={inputStyle}
+              >
+                <option value="">Not set</option>
+                <option value="smooth">Smooth</option>
+                <option value="double">Double</option>
+                <option value="curly">Curly</option>
+                <option value="wire">Wire</option>
+                <option value="long">Long</option>
+                <option value="hairless">Hairless</option>
+              </select>
+            </Field>
             <Field label="Weight kg (optional)">
               <input type="number" step="0.1" min="0" value={petForm.weightStr} onChange={(e) => setPetForm((f) => ({ ...f, weightStr: e.target.value }))} style={inputStyle} />
             </Field>

src/pages/Services.tsx

@@ -6,6 +6,7 @@ interface ServiceForm {
   description: string;
   priceStr: string;
   durationMinutes: number;
+  defaultBufferMinutes: number;
   active: boolean;
 }
 
@@ -14,6 +15,7 @@ const EMPTY_FORM: ServiceForm = {
   description: "",
   priceStr: "",
   durationMinutes: 60,
+  defaultBufferMinutes: 0,
   active: true,
 };
 
@@ -55,6 +57,7 @@ export function ServicesPage() {
       description: s.description ?? "",
       priceStr: (s.basePriceCents / 100).toFixed(2),
       durationMinutes: s.durationMinutes,
+      defaultBufferMinutes: s.defaultBufferMinutes ?? 0,
       active: s.active,
     });
     setFormError(null);
@@ -76,6 +79,7 @@ export function ServicesPage() {
         description: form.description || undefined,
         basePriceCents: Math.round(price * 100),
         durationMinutes: form.durationMinutes,
+        defaultBufferMinutes: form.defaultBufferMinutes,
         active: form.active,
       };
       const res = editing
@@ -138,7 +142,7 @@ export function ServicesPage() {
         <table style={{ width: "100%", borderCollapse: "collapse", fontSize: 14 }}>
           <thead>
             <tr style={{ background: "#f8fafc" }}>
-              {["Name", "Description", "Price", "Duration", "Status", ""].map((h) => (
+              {["Name", "Description", "Price", "Duration", "Default Buffer", "Status", ""].map((h) => (
                 <th key={h} style={{ textAlign: "left", padding: "0.55rem 0.75rem", borderBottom: "1px solid #e5e7eb", fontSize: 11, fontWeight: 600, color: "#6b7280", textTransform: "uppercase", letterSpacing: "0.04em" }}>
                   {h}
                 </th>
@@ -152,6 +156,7 @@ export function ServicesPage() {
                 <td style={tdStyle}>{s.description ?? "—"}</td>
                 <td style={tdStyle}>${(s.basePriceCents / 100).toFixed(2)}</td>
                 <td style={tdStyle}>{s.durationMinutes} min</td>
+                <td style={tdStyle}>{(s as Service & { defaultBufferMinutes?: number }).defaultBufferMinutes ?? 0} min</td>
                 <td style={tdStyle}>
                   <button
                     onClick={() => toggleActive(s)}
@@ -240,6 +245,19 @@ export function ServicesPage() {
                 style={inputStyle}
               />
             </Field>
+            <Field label="Default Buffer (minutes)">
+              <input
+                type="number"
+                min="0"
+                step="1"
+                value={form.defaultBufferMinutes}
+                onChange={(e) => setForm((f) => ({ ...f, defaultBufferMinutes: parseInt(e.target.value) || 0 }))}
+                style={inputStyle}
+              />
+              <p style={{ fontSize: 12, color: "#9ca3af", marginTop: "0.2rem" }}>
+                Default buffer time applied when no specific rule matches
+              </p>
+            </Field>
             <Field label="Status">
               <label style={{ display: "flex", alignItems: "center", gap: "0.5rem", cursor: "pointer" }}>
                 <input

src/pages/Settings.tsx

@@ -1,5 +1,6 @@
 import { useState, useEffect, useRef } from "react";
 import { useBranding } from "../BrandingContext.js";
+import { BufferRulesSection } from "../components/BufferRules.js";
 
 interface AuthProviderConfig {
   id: number;
@@ -533,6 +534,10 @@ issuerUrl: authForm.issuerUrl,
         {saving ? "Saving..." : "Save Changes"}
       </button>
 
+      {/* Buffer Rules Section */}
+      <hr style={{ margin: "2rem 0", border: "none", borderTop: "1px solid #e5e7eb" }} />
+      <BufferRulesSection />
+
       {/* Auth Provider Section — super users only */}
       {currentUser?.isSuperUser && (
         <>

src/portal/sections/PetForm.tsx

@@ -1,26 +1,31 @@
 import { useState } from "react";
-import { X, Save, Plus, Star } from "lucide-react";
+import { X, Save, Plus, Star, Loader2 } from "lucide-react";
 import type { Pet, MedicalAlert, CoatType, AlertSeverity } from "@groombook/types";
 
 const COAT_TYPES: CoatType[] = ["double", "wire", "curly", "smooth", "long", "hairless"];
 const SEVERITY_OPTIONS: AlertSeverity[] = ["low", "medium", "high"];
+const SIZE_OPTIONS = ["small", "medium", "large", "xlarge"] as const;
+type SizeOption = typeof SIZE_OPTIONS[number];
 
 interface Props {
   pet?: Pet;
-  onSave: (pet: Pet) => void;
+  onSave: (pet: Pet) => void | Promise<void>;
   onCancel: () => void;
+  saving?: boolean;
+  saveError?: string | null;
 }
 
 function newAlert(): Omit<MedicalAlert, "id"> {
   return { type: "", description: "", severity: "low" };
 }
 
-export function PetForm({ pet, onSave, onCancel }: Props) {
+export function PetForm({ pet, onSave, onCancel, saving, saveError }: Props) {
   const [name, setName] = useState(pet?.name ?? "");
   const [breed, setBreed] = useState(pet?.breed ?? "");
   const [weight, setWeight] = useState(pet?.weightKg ?? 0);
   const [notes, setNotes] = useState(pet?.healthAlerts ?? "");
   const [coatType, setCoatType] = useState<CoatType | "">((pet?.coatType as CoatType) ?? "");
+  const [petSizeCategory, setPetSizeCategory] = useState<SizeOption | "">(pet?.petSizeCategory as SizeOption ?? "");
   const [preferredCuts, setPreferredCuts] = useState<string[]>(pet?.preferredCuts ?? []);
   const [cutInput, setCutInput] = useState("");
   const [alerts, setAlerts] = useState<Omit<MedicalAlert, "id">[]>(
@@ -81,6 +86,7 @@ export function PetForm({ pet, onSave, onCancel }: Props) {
       weightKg: weight || null,
       healthAlerts: notes,
       coatType: coatType || null,
+      petSizeCategory: petSizeCategory || null,
       preferredCuts,
       medicalAlerts: alerts.map((a, i) => ({ ...a, id: pet.medicalAlerts?.[i]?.id ?? crypto.randomUUID() })),
     };
@@ -159,6 +165,22 @@ export function PetForm({ pet, onSave, onCancel }: Props) {
           </select>
         </div>
 
+        {/* Size Category */}
+        <div>
+          <label htmlFor="size-category" className="block text-sm font-medium text-stone-600 mb-1">Size Category</label>
+          <select
+            id="size-category"
+            value={petSizeCategory}
+            onChange={e => setPetSizeCategory(e.target.value as SizeOption)}
+            className="w-full border border-stone-200 rounded-lg px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-(--color-accent) bg-white"
+          >
+            <option value="">Select size</option>
+            {SIZE_OPTIONS.map(s => (
+              <option key={s} value={s}>{s.charAt(0).toUpperCase() + s.slice(1)}</option>
+            ))}
+          </select>
+        </div>
+
         {/* Temperament (read-only) */}
         {(temperamentScore != null || temperamentFlags.length > 0) && (
           <div className="bg-stone-50 rounded-xl p-4 space-y-2">
@@ -285,18 +307,23 @@ export function PetForm({ pet, onSave, onCancel }: Props) {
           <button
             type="button"
             onClick={onCancel}
-            className="flex-1 px-4 py-2 border border-stone-200 rounded-lg text-sm text-stone-600 hover:bg-stone-50"
+            disabled={saving}
+            className="flex-1 px-4 py-2 border border-stone-200 rounded-lg text-sm text-stone-600 hover:bg-stone-50 disabled:opacity-50"
           >
             Cancel
           </button>
           <button
             type="submit"
-            className="flex-1 flex items-center justify-center gap-1.5 px-4 py-2 bg-(--color-accent) text-white rounded-lg text-sm font-medium hover:bg-(--color-accent-hover)"
+            disabled={saving}
+            className="flex-1 flex items-center justify-center gap-1.5 px-4 py-2 bg-(--color-accent) text-white rounded-lg text-sm font-medium hover:bg-(--color-accent-hover) disabled:opacity-50"
           >
-            <Save size={14} />
-            Save
+            {saving ? <Loader2 size={14} className="animate-spin" /> : <Save size={14} />}
+            {saving ? "Saving…" : "Save"}
           </button>
         </div>
+        {saveError && (
+          <p className="text-sm text-red-500 text-center">{saveError}</p>
+        )}
       </form>
     </div>
   );

src/portal/sections/PetProfiles.tsx

@@ -83,9 +83,27 @@ export function PetProfiles({ sessionId, readOnly }: Props) {
   const petHistory = appointments.appointments.filter(a => a.pet?.id === selectedPetId && new Date(a.startTime) <= new Date());
   const editingPet = editingPetId ? pets.find(p => p.id === editingPetId) ?? null : null;
 
-  function handlePetSave(updatedPet: Pet) {
-    setPets(prev => prev.map(p => p.id === updatedPet.id ? updatedPet : p));
-    setEditingPetId(null);
+  const [saving, setSaving] = useState(false);
+  const [saveError, setSaveError] = useState<string | null>(null);
+
+  async function handlePetSave(updatedPet: Pet) {
+    setSaving(true);
+    setSaveError(null);
+    try {
+      const res = await fetch(`/api/portal/pets/${updatedPet.id}`, {
+        method: "PATCH",
+        headers: { "Content-Type": "application/json", ...buildHeaders(sessionId) },
+        body: JSON.stringify(updatedPet),
+      });
+      if (!res.ok) throw new Error("Failed to save pet");
+      const saved: Pet = await res.json();
+      setPets(prev => prev.map(p => p.id === saved.id ? saved : p));
+      setEditingPetId(null);
+    } catch (e) {
+      setSaveError(e instanceof Error ? e.message : "Failed to save pet");
+    } finally {
+      setSaving(false);
+    }
   }
 
   if (editingPet) {
@@ -94,6 +112,8 @@ export function PetProfiles({ sessionId, readOnly }: Props) {
         pet={editingPet}
         onSave={handlePetSave}
         onCancel={() => setEditingPetId(null)}
+        saving={saving}
+        saveError={saveError}
       />
     );
   }