Convert storage layer to 100% pure local disk JSON database (.data.json)

server.ts

@@ -815,6 +815,42 @@ app.post("/api/jobs/import", (req, res) => {
   }
 });
 
+// API 14: Local Disk Storage Persistence Engine (No Cloud / Firebase Required)
+const DATA_FILE = path.join(process.cwd(), ".data.json");
+import fs from "fs";
+
+app.get("/api/local/data", (req, res) => {
+  try {
+    const key = String(req.query.key || "");
+    if (!fs.existsSync(DATA_FILE)) {
+      return res.json({});
+    }
+    const raw = fs.readFileSync(DATA_FILE, "utf-8");
+    const store = JSON.parse(raw || "{}");
+    res.json(store[key] || {});
+  } catch (e: any) {
+    res.status(500).json({ error: e.message });
+  }
+});
+
+app.post("/api/local/data", (req, res) => {
+  try {
+    const { key, items, profile } = req.body;
+    let store: any = {};
+    if (fs.existsSync(DATA_FILE)) {
+      try { store = JSON.parse(fs.readFileSync(DATA_FILE, "utf-8") || "{}"); } catch (e) {}
+    }
+    if (key) {
+      if (items !== undefined) store[key] = { items };
+      if (profile !== undefined) store[key] = { profile };
+    }
+    fs.writeFileSync(DATA_FILE, JSON.stringify(store, null, 2));
+    res.json({ success: true });
+  } catch (e: any) {
+    res.status(500).json({ error: e.message });
+  }
+});
+
 // API 10: Google Drive - List Job Application Artifacts
 app.get("/api/workspace/drive/files", async (req, res) => {
   try {