fix(i18n): anchor the literal guard's exclusions so they stop swallowing copy (#2288)

Co-authored-by: Kandev Agent <agent@kandev.dev>
Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>

apps/web/components/github/github-settings.tsx

@@ -396,6 +396,9 @@ function ReviewWatchSection({ workspaceId }: { workspaceId: string }) {
         }}
         onUpdate={async (id, req) => {
           const watch = watches.find((item) => item.id === id);
+          // Unreachable-invariant guard: the dialog only ever calls onUpdate for
+          // a row it was opened from. A developer diagnostic, not user copy.
+          // eslint-disable-next-line i18next/no-literal-string -- invariant message
           if (!watch) throw new Error("review watch not found");
           await update(id, watch.workspace_id, req);
           toast({ description: t("github:reviewWatchUpdated"), variant: "success" });
@@ -499,6 +502,8 @@ function IssueWatchSection({ workspaceId }: { workspaceId: string }) {
         }}
         onUpdate={async (id, req) => {
           const watch = issueActions.watches.find((item) => item.id === id);
+          // Unreachable-invariant guard, as above. Developer diagnostic.
+          // eslint-disable-next-line i18next/no-literal-string -- invariant message
           if (!watch) throw new Error("issue watch not found");
           await issueActions.update(id, watch.workspace_id, req);
           toast({ description: t("github:issueWatchUpdated"), variant: "success" });