feat: add global workspace search with regex and file filtering

packages/backend/src/routes/editor.ts

@@ -4,6 +4,7 @@ import {
   readFile,
   writeFile,
   deleteFile,
+  searchFiles,
 } from "../services/editor.service.js";
 import { lookupResref, getResrefCount } from "../nwscript/resref-index.js";
 import { lookupTlk, getTlkCount } from "../nwscript/tlk-index.js";
@@ -51,6 +52,18 @@ router.delete("/file/:repo/*path", async (req, res) => {
   }
 });
 
+router.post("/search", async (req, res) => {
+  const { repo, query, regex, caseSensitive, includePattern, excludePattern, maxResults } = req.body;
+  if (!repo || !query) return res.status(400).json({ error: "repo and query required" });
+  try {
+    const results = await searchFiles(repo, query, { regex, caseSensitive, includePattern, excludePattern, maxResults });
+    res.json(results);
+  } catch (err: unknown) {
+    const message = err instanceof Error ? err.message : "Unknown error";
+    res.status(500).json({ error: message });
+  }
+});
+
 router.get("/resref/:resref", (req, res) => {
   const entry = lookupResref(req.params.resref);
   if (entry) {