legacy UI (#4612)

# Description of Changes

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Please provide a summary of the changes, including:

- What was changed
- Why the change was made
- Any challenges encountered

Closes #(issue_number)
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---

## Checklist

### General

- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] My changes generate no new warnings

### Documentation

- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### UI Changes (if applicable)

- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)

### Testing (if applicable)

- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md#6-testing)
for more details.

---------

Co-authored-by: Claude <[email protected]>
Co-authored-by: EthanHealy01 <[email protected]>
Co-authored-by: EthanHealy01 <[email protected]>

frontend/src/utils/toolSearch.ts

@@ -8,7 +8,7 @@ export interface RankedToolItem {
 }
 
 export function filterToolRegistryByQuery(
-  toolRegistry: Record<string, ToolRegistryEntry>,
+  toolRegistry: Record<ToolId, ToolRegistryEntry>,
   query: string
 ): RankedToolItem[] {
   const entries = Object.entries(toolRegistry) as [ToolId, ToolRegistryEntry][];
@@ -85,10 +85,10 @@ export function filterToolRegistryByQuery(
     ordered.push({ item: [id, tool], matchedText });
   };
 
-  for (const { id, tool } of exactName) push(id, tool, tool.name);
-  for (const { id, tool, text } of exactSyn) push(id, tool, text);
-  for (const { id, tool, text } of fuzzyName) push(id, tool, text);
-  for (const { id, tool, text } of fuzzySyn) push(id, tool, text);
+  for (const { id, tool } of exactName) push(id as ToolId, tool, tool.name);
+  for (const { id, tool, text } of exactSyn) push(id as ToolId, tool, text);
+  for (const { id, tool, text } of fuzzyName) push(id as ToolId, tool, text);
+  for (const { id, tool, text } of fuzzySyn) push(id as ToolId, tool, text);
 
   if (ordered.length > 0) return ordered;