Remove unused scripts and rename sitemap generation script

Deleted obsolete scripts `check-analytics.js`, `get_groq_models.js`, and `killport.js` to clean up the codebase. Renamed `gen_sitemap.js` to `generate_sitemap.js` for better readability and consistency.

scripts/killport.js

@@ -1,36 +0,0 @@
-import * as child_process from "node:child_process";
-
-export const killProcessOnPort = (port) => {
-  return new Promise((resolve, reject) => {
-    child_process.exec(`lsof -t -i :${port}`.trim(), (err, stdout) => {
-      if (err) {
-        if (err.code !== 1) {
-          console.error(`Error finding process on port ${port}:`, err);
-          return reject(err);
-        } else {
-          console.log(`No process found on port ${port}`);
-          return resolve();
-        }
-      }
-
-      const pid = stdout.trim();
-      if (!pid) {
-        console.log(`No process is currently running on port ${port}`);
-        return resolve();
-      }
-
-      child_process.exec(`kill -9 ${pid}`.trim(), (killErr) => {
-        if (killErr) {
-          console.error(
-            `Failed to kill process ${pid} on port ${port}`,
-            killErr,
-          );
-          return reject(killErr);
-        }
-
-        console.log(`Successfully killed process ${pid} on port ${port}`);
-        resolve();
-      });
-    });
-  });
-};