Implement needed handlers to get to the initial download

`/api/start`
`/api/dummy/login`
`/apt/user`
`/api/purchase`

src/router/user.rs

@@ -0,0 +1,20 @@
+use json;
+use json::object;
+use crate::router::global;
+use actix_web::{HttpResponse, HttpRequest, http::header::HeaderValue};
+use crate::router::userdata;
+
+pub fn user(req: HttpRequest) -> HttpResponse {
+    let blank_header = HeaderValue::from_static("");
+    
+    let key = req.headers().get("a6573cbe").unwrap_or(&blank_header).to_str().unwrap_or("");
+    let uid = req.headers().get("aoharu-user-id").unwrap_or(&blank_header).to_str().unwrap_or("");
+    let user = userdata::get_acc(key, uid);
+    
+    let resp = object!{
+        "code": 0,
+        "server_time": global::timestamp(),
+        "data": user
+    };
+    global::send(resp)
+}