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/hooks/useIntrospectGraphQL.ts

@@ -83,7 +83,7 @@ export function useIntrospectGraphQL(
     }
   }, [activeEnvironment?.id, baseRequest, upsertIntrospection]);
 
-  // biome-ignore lint/correctness/useExhaustiveDependencies: none
+  // oxlint-disable-next-line react-hooks/exhaustive-deps
   useEffect(() => {
     // Skip introspection if automatic is disabled and we already have one
     if (options.disabled) {
@@ -141,14 +141,14 @@ function tryParseIntrospectionToSchema(
   let parsedResponse: IntrospectionQuery;
   try {
     parsedResponse = JSON.parse(content).data;
-    // biome-ignore lint/suspicious/noExplicitAny: none
+    // oxlint-disable-next-line no-explicit-any
   } catch (e: any) {
     return { error: String("message" in e ? e.message : e) };
   }
 
   try {
     return { schema: buildClientSchema(parsedResponse, {}) };
-    // biome-ignore lint/suspicious/noExplicitAny: none
+    // oxlint-disable-next-line no-explicit-any
   } catch (e: any) {
     return { error: String("message" in e ? e.message : e) };
   }