Align lint fixes with main and resolve merge conflicts

- Convert biome-ignore to oxlint-disable-next-line across client app
- Fix no-base-to-string with type narrowing instead of suppressions
- Fix no-floating-promises with fireAndForget() in proxy app
- Fix restrict-template-expressions with String() wrapping
- Resolve leftover merge conflict markers in manager.rs
- Remove duplicate cmd_plugin_init_errors from lib.rs
- Add graphql as explicit dependency in yaak-client

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

apps/yaak-client/components/TemplateFunctionDialog.tsx

@@ -138,7 +138,7 @@ function InitializedTemplateFunctionDialog({
   });
 
   const tooLarge = rendered.data ? rendered.data.length > 10000 : false;
-  // biome-ignore lint/correctness/useExhaustiveDependencies: Only update this on rendered data change to keep secrets hidden on input change
+  // oxlint-disable-next-line react-hooks/exhaustive-deps -- Only update this on rendered data change to keep secrets hidden on input change
   const dataContainsSecrets = useMemo(() => {
     for (const [name, value] of Object.entries(argValues)) {
       const arg = templateFunction.data?.args.find((a) => "name" in a && a.name === name);