Feat: Add endpoint to read current D1 schema

functions/api/admin/read-schema.js

@@ -0,0 +1,13 @@
+export async function onRequestPost({ request, env }) {
+    try {
+        const { admin_pass } = await request.json();
+        if (admin_pass !== env.ADMIN_PASS) return new Response("Unauthorized", { status: 401 });
+
+        const { results } = await env.D1_EV.prepare("SELECT sql FROM sqlite_master WHERE type='table' AND name='users'").all();
+        const schema = results.length ? results[0].sql : "Table 'users' not found.";
+
+        return new Response(schema);
+    } catch (e) {
+        return new Response(e.message, { status: 500 });
+    }
+}