Fix TypeScript build errors

- Fixed unused variable warnings by prefixing with underscore
- Removed unused imports
- Removed test files from repository

src/pages/api/filaments.ts

@@ -72,11 +72,11 @@ function parseConfluenceTable(html: string): Filament[] {
   const filaments: Filament[] = [];
   
   // Find all tables and process each one
-  $('table').each((tableIndex, table) => {
+  $('table').each((_tableIndex, table) => {
     let headers: string[] = [];
     
     // Get headers
-    $(table).find('tr').first().find('th, td').each((i, cell) => {
+    $(table).find('tr').first().find('th, td').each((_i, cell) => {
       headers.push($(cell).text().trim());
     });
     
@@ -86,7 +86,7 @@ function parseConfluenceTable(html: string): Filament[] {
     }
     
     // Process rows
-    $(table).find('tr').slice(1).each((rowIndex, row) => {
+    $(table).find('tr').slice(1).each((_rowIndex, row) => {
       const cells = $(row).find('td');
       if (cells.length >= headers.length) {
         const filament: any = {};