refactor: remove all any types, add strict GraphQL scalar typing

- Add strictScalars: true to codegen.ts with proper scalar mappings
  (Date, Decimal, JSONString, JSON, UUID, BigInt → string/Record)
- Replace all ref<any[]> with proper GraphQL-derived types
- Add type guards for null filtering in arrays
- Fix bugs exposed by typing (locationLatitude vs latitude, etc.)
- Add interfaces for external components (MapboxSearchBox)

This enables end-to-end type safety from GraphQL schema to frontend.

app/pages/clientarea/team/invite.vue

@@ -95,8 +95,8 @@ const submitInvite = async () => {
     } else {
       inviteError.value = result?.inviteMember?.message || t('clientTeam.invite.error')
     }
-  } catch (err: any) {
-    inviteError.value = err.message || t('clientTeam.invite.error')
+  } catch (err: unknown) {
+    inviteError.value = err instanceof Error ? err.message : t('clientTeam.invite.error')
   } finally {
     inviteLoading.value = false
   }