feat(billing): plan taxonomy reconciliation + Stripe sync + internal-tester allowlist (#164)

Co-authored-by: Michael Chihlas <michael@resolutionflow.com>
Co-committed-by: Michael Chihlas <michael@resolutionflow.com>

frontend/src/pages/AccountSettingsPage.tsx

@@ -418,10 +418,10 @@ export function AccountSettingsPage() {
             <p className="text-sm text-muted-foreground">Plan limits unavailable.</p>
           )}
 
-          {plan !== 'team' && (
+          {plan !== 'enterprise' && (
             <div className="flex flex-wrap justify-end gap-2 pt-2">
               {plan === 'free' && <CheckoutButton plan="pro" />}
-              <CheckoutButton plan="team" />
+              <CheckoutButton plan="enterprise" />
             </div>
           )}
         </section>

frontend/src/pages/LandingPage.tsx

@@ -15,7 +15,7 @@ const FAQ_ITEMS = [
   },
   {
     q: 'What PSA tools do you integrate with?',
-    a: 'Launching with ConnectWise PSA \u2014 session documentation exports directly as internal ticket notes. Atera and Syncro integrations are next. During beta, you can copy formatted notes into any PSA.',
+    a: 'Launching with ConnectWise PSA — session documentation exports directly as internal ticket notes. Atera and Syncro integrations are next. During beta, you can copy formatted notes into any PSA.',
   },
   {
     q: 'What counts as a \u201csession\u201d?',
@@ -23,7 +23,7 @@ const FAQ_ITEMS = [
   },
   {
     q: 'What if FlowPilot gets it wrong?',
-    a: 'FlowPilot is a copilot, not autopilot. Every suggestion is a recommendation \u2014 you decide what to act on. And because every step is documented, you always have a full audit trail of what was tried and why.',
+    a: 'FlowPilot is a copilot, not autopilot. Every suggestion is a recommendation — you decide what to act on. And because every step is documented, you always have a full audit trail of what was tried and why.',
   },
 ]
 
@@ -75,8 +75,8 @@ export default function LandingPage() {
   return (
     <>
       <PageMeta
-        title="ResolutionFlow \u2014 From Issue to Resolution, Documented"
-        description="Your AI troubleshooting copilot. Describe the issue, get help fixing it, and get clean ticket notes \u2014 automatically."
+        title="ResolutionFlow — From Issue to Resolution, Documented"
+        description="Your AI troubleshooting copilot. Describe the issue, get help fixing it, and get clean ticket notes — automatically."
       />
 
       <div className="landing-page">

frontend/src/pages/admin/AccountsPage.tsx

@@ -88,7 +88,7 @@ export function UsersPage() {
   })
   const [inviteLoading, setInviteLoading] = useState(false)
   const [showCreateAccountModal, setShowCreateAccountModal] = useState(false)
-  const [createAccountForm, setCreateAccountForm] = useState({ name: '', plan: 'free' as 'free' | 'pro' | 'team', owner_email: '' })
+  const [createAccountForm, setCreateAccountForm] = useState({ name: '', plan: 'free' as 'free' | 'pro' | 'starter' | 'enterprise', owner_email: '' })
   const [createAccountLoading, setCreateAccountLoading] = useState(false)
 
   const fetchAccounts = useCallback(async () => {
@@ -469,7 +469,8 @@ export function UsersPage() {
             <option value="all">All plans</option>
             <option value="free">Free</option>
             <option value="pro">Pro</option>
-            <option value="team">Team</option>
+            <option value="enterprise">Enterprise</option>
+              <option value="starter">Starter</option>
           </select>
           <select
             value={statusFilter}
@@ -629,7 +630,7 @@ export function UsersPage() {
             <label className="mb-1 block text-sm font-medium text-foreground">Initial Plan</label>
             <select
               value={createAccountForm.plan}
-              onChange={(e) => setCreateAccountForm((form) => ({ ...form, plan: e.target.value as 'free' | 'pro' | 'team' }))}
+              onChange={(e) => setCreateAccountForm((form) => ({ ...form, plan: e.target.value as 'free' | 'pro' | 'starter' | 'enterprise' }))}
               className={cn(
                 'w-full rounded-md border border-border bg-card px-3 py-2 text-sm text-foreground',
                 'focus:outline-hidden focus:border-primary focus:ring-2 focus:ring-primary/20'
@@ -637,7 +638,8 @@ export function UsersPage() {
             >
               <option value="free">Free</option>
               <option value="pro">Pro</option>
-              <option value="team">Team</option>
+              <option value="enterprise">Enterprise</option>
+              <option value="starter">Starter</option>
             </select>
           </div>
           <div>

frontend/src/pages/admin/InviteCodesPage.tsx

@@ -12,8 +12,9 @@ import type { InviteCodeResponse, InviteCodeCreateRequest } from '@/types/admin'
 
 const PLAN_OPTIONS = [
   { value: 'free', label: 'Free' },
+  { value: 'starter', label: 'Starter' },
   { value: 'pro', label: 'Pro' },
-  { value: 'team', label: 'Team' },
+  { value: 'enterprise', label: 'Enterprise' },
 ] as const
 
 const planBadgeVariant = (plan: string): 'success' | 'destructive' | 'warning' | 'default' => {
@@ -33,7 +34,7 @@ export function InviteCodesPage() {
   // Form state
   const [email, setEmail] = useState('')
   const [expiresInDays, setExpiresInDays] = useState('')
-  const [assignedPlan, setAssignedPlan] = useState<'free' | 'pro' | 'team'>('free')
+  const [assignedPlan, setAssignedPlan] = useState<'free' | 'pro' | 'starter' | 'enterprise'>('free')
   const [trialDays, setTrialDays] = useState('')
   const [note, setNote] = useState('')
 
@@ -269,7 +270,7 @@ export function InviteCodesPage() {
               aria-label="Plan"
               value={assignedPlan}
               onChange={(e) => {
-                const plan = e.target.value as 'free' | 'pro' | 'team'
+                const plan = e.target.value as 'free' | 'pro' | 'starter' | 'enterprise'
                 setAssignedPlan(plan)
                 if (plan === 'free') setTrialDays('')
               }}