Drop PayPal from coach payment methods

Keep Cash on site / Lightning / Cashu / Bank transfer / Other. Existing
profiles that already carry a 'paypal' payment_method still render it (raw
fallback), so no data is lost. NIP.md + AGENTS.md updated.

AGENTS.md

@@ -87,7 +87,7 @@ session with **no other memory of this project**. So:
     **`min-h-0`** — the global mobile `button { min-height:44px }` rule turned
     every chip into a 44px slab otherwise.
     **Payments (2026-10-04):** coaches **declare** accepted methods
-    (`payment_method`: cash/lightning/cashu/bank/paypal/other) + an optional
+    (`payment_method`: cash/lightning/cashu/bank/other) + an optional
     `payment_note`, a `pay_what_you_can` flag, and an optional `booking_fee`
     (+`booking_fee_currency`). A booking fee is **paid directly to the coach's
     kind-0 `lud16`** via the existing `PayWithSats` (NWC→WebLN→Cashu) — mounted

NIP.md

@@ -2072,7 +2072,7 @@ client-side.
 | `rate_amount` | number | Optional structured rate amount (with `rate_currency` + `rate_unit`) |
 | `rate_currency` | `sats`, `USD`, `EUR`, `GBP` | Currency for `rate_amount` |
 | `rate_unit` | `hour`, `session`, `half-day`, `day`, `camp` | Billing unit for `rate_amount` |
-| `payment_method` | `cash`, `lightning`, `cashu`, `bank`, `paypal`, `other` | Repeatable — declared accepted payment methods |
+| `payment_method` | `cash`, `lightning`, `cashu`, `bank`, `other` | Repeatable — declared accepted payment methods |
 | `payment_note` | free-form | Optional note about payment (e.g. "first session free") |
 | `booking_fee` | number | Optional fee to confirm a booking (with `booking_fee_currency`) |
 | `booking_fee_currency` | `sats`, `USD`, `EUR`, `GBP` | Currency for `booking_fee` |

src/i18n/en.ts

@@ -2239,7 +2239,6 @@ labUi: {
       payMethodLightning: 'Lightning',
       payMethodCashu: 'Cashu',
       payMethodBank: 'Bank transfer',
-      payMethodPaypal: 'PayPal',
       payMethodOther: 'Other',
       payWhatYouCanLabel: 'Sliding scale / pay what you can',
       bookingFeeLabel: 'Booking fee (optional)',

src/i18n/es.ts

@@ -2239,7 +2239,6 @@ labUi: {
       payMethodLightning: 'Lightning',
       payMethodCashu: 'Cashu',
       payMethodBank: 'Transferencia bancaria',
-      payMethodPaypal: 'PayPal',
       payMethodOther: 'Otro',
       payWhatYouCanLabel: 'Tarifa social / paga lo que puedas',
       bookingFeeLabel: 'Reserva (opcional)',

src/lib/coachOptions.ts

@@ -110,6 +110,5 @@ export const COACH_PAYMENT_METHODS: CoachOption[] = [
   { value: 'lightning', key: 'labUi.coachForm.payMethodLightning' },
   { value: 'cashu', key: 'labUi.coachForm.payMethodCashu' },
   { value: 'bank', key: 'labUi.coachForm.payMethodBank' },
-  { value: 'paypal', key: 'labUi.coachForm.payMethodPaypal' },
   { value: 'other', key: 'labUi.coachForm.payMethodOther' },
 ];