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/git/HistoryDialog.tsx

@@ -27,7 +27,7 @@ export function HistoryDialog({ log }: Props) {
         </TableHead>
         <TableBody>
           {log.map((l) => (
-            <TableRow key={l.author + (l.message ?? "n/a") + l.when}>
+            <TableRow key={(l.author.name ?? "") + (l.message ?? "n/a") + l.when}>
               <TruncatedWideTableCell>
                 {l.message || <em className="text-text-subtle">No message</em>}
               </TruncatedWideTableCell>