fix(audit): wire 6 missing email subject overrides (R2-H14)

Admin-editable subject overrides at /admin/email-templates were no-ops
for 6 of 8 templates — only portal_activation and portal_reset called
loadSubjectOverride. Added a shared resolveSubject() helper and wired
it into the missing senders:

- crm_invite + portal_invite_resend (crm-invite.service.ts)
- inquiry_client_confirmation (email worker via portId on job payload)
- inquiry_sales_notification (email worker via portId on job payload)
- residential_inquiry_client_confirmation (residential-inquiries route)
- residential_inquiry_sales_alert (residential-inquiries route)

The inquiry email worker payloads now carry portId + portName so the
worker can resolve the per-port override; producers in inquiry-
notifications.service.ts pass them through.

1175/1175 vitest passing.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/lib/services/inquiry-notifications.service.ts

@@ -53,6 +53,8 @@ export async function sendInquiryNotifications(params: InquiryNotificationParams
       firstName,
       mooringNumber,
       contactEmail,
+      portId,
+      portName: 'Port Nimara', // future: resolve from getPortBrandingConfig
     });
   } catch (err) {
     logger.error({ err, interestId }, 'Failed to queue client confirmation email');
@@ -120,6 +122,8 @@ export async function sendInquiryNotifications(params: InquiryNotificationParams
             phone: clientPhone,
             mooringNumber,
             crmUrl,
+            portId,
+            portName: 'Port Nimara',
           }),
         ),
       );