refactor: flatten shell/ dir and add ask screenshot to README

Caddyfile

@@ -0,0 +1,50 @@
+:8080 {
+    # Route based on Host header (set by haloy)
+    @ask {
+        host ask.xn--2dk.xyz
+    }
+    @db {
+        host db.xn--2dk.xyz
+    }
+
+    handle @ask {
+        reverse_proxy localhost:7682 {
+            flush_interval -1
+        }
+    }
+
+    handle @db {
+        handle /health {
+            respond 200
+        }
+
+        handle /login {
+            reverse_proxy 127.0.0.1:8081
+        }
+
+        handle /query {
+            reverse_proxy 127.0.0.1:8081
+        }
+
+        @websocket {
+            header Connection *Upgrade*
+            header Upgrade websocket
+        }
+
+        handle @websocket {
+            reverse_proxy localhost:7681 {
+                flush_interval -1
+            }
+        }
+
+        handle {
+            forward_auth 127.0.0.1:8081 {
+                uri /auth
+                copy_headers Cookie
+            }
+            reverse_proxy localhost:7681 {
+                flush_interval -1
+            }
+        }
+    }
+}