Fix geo GraphQL schema mismatch: camelCase → snake_case

All geo .graphql operations and consuming code updated to match
server schema which uses snake_case field/argument names.
Removed non-existent QuoteCalculations query, using NearestOffers instead.

codegen.ts

@@ -24,6 +24,7 @@ const pluginConfig = {
 
 const config: CodegenConfig = {
   overwrite: true,
+  allowPartialOutputs: true,
   generates: {
     // Public operations (no token)
     './app/composables/graphql/public/exchange-generated.ts': {