refactoring the api endpoints to be separate files to reduce context usage

apps/server/src/routes/fs/routes/read.ts

@@ -0,0 +1,29 @@
+/**
+ * POST /read endpoint - Read file
+ */
+
+import type { Request, Response } from "express";
+import fs from "fs/promises";
+import { validatePath } from "../../../lib/security.js";
+import { getErrorMessage, logError } from "../common.js";
+
+export function createReadHandler() {
+  return async (req: Request, res: Response): Promise<void> => {
+    try {
+      const { filePath } = req.body as { filePath: string };
+
+      if (!filePath) {
+        res.status(400).json({ success: false, error: "filePath is required" });
+        return;
+      }
+
+      const resolvedPath = validatePath(filePath);
+      const content = await fs.readFile(resolvedPath, "utf-8");
+
+      res.json({ success: true, content });
+    } catch (error) {
+      logError(error, "Read file failed");
+      res.status(500).json({ success: false, error: getErrorMessage(error) });
+    }
+  };
+}