ESLint --fix: auto-fix brace-style, indent, semi, no-trailing-spaces

Run eslint --fix across src/ to clear ~1900 mechanical lint errors
surfaced by the @typescript-eslint v8 + react-hooks v7 + react-compiler
upgrade in the React 19 modernization PR.

Issues fixed automatically:
- brace-style (Allman): try/catch one-liners reformatted to multi-line
- indent: tab-vs-space and depth corrections
- semi: missing trailing semicolons
- no-trailing-spaces

No semantic changes. Remaining 701 errors are real-code issues
(set-state-in-effect, rules-of-hooks, no-unsafe-* type checks) that
need manual per-file review.

https://claude.ai/code/session_01GrR87LAqnAEyKG2ZbmQt5Q

src/components/catalog/CatalogAdminContext.tsx

@@ -97,7 +97,10 @@ export const CatalogAdminProvider: FC<{ children: ReactNode }> = ({ children })
         {
             if(e.key === 'Escape')
             {
-                if(editingOffer) { setEditingOffer(null); e.preventDefault(); return; }
+                if(editingOffer)
+                {
+                    setEditingOffer(null); e.preventDefault(); return;
+                }
                 if(editingPageData || editingRootPage || editingPageNode)
                 {
                     setEditingPageData(false);