Fix WASM client: use correct method name 'job.run' instead of 'jobs.run'

- Changed method call from 'jobs.run' to 'job.run' to match OpenRPC spec
- This fixes 'Method not found' errors when calling run_job from WASM
- Native client was already using correct method name

clients/openrpc/src/wasm.rs

@@ -313,7 +313,7 @@ impl WasmSupervisorClient {
             }
         }]);
 
-        match self.call_method("jobs.run", params).await {
+        match self.call_method("job.run", params).await {
             Ok(result) => {
                 if let Some(result_str) = result.as_str() {
                     Ok(result_str.to_string())