Flatten repo structure: move crawler/ to root, remove vqa/ and immoweb/

The crawler subdirectory was the only active project. Moving it to the
repo root simplifies paths and removes the unnecessary nesting. The
vqa/ and immoweb/ directories were legacy/unused and have been removed.

Updated .drone.yml, .gitignore, .claude/ docs, and skills to reflect
the new flat structure.

frontend/src/auth/config.ts

@@ -0,0 +1,14 @@
+import { WebStorageStateStore } from "oidc-client-ts";
+
+export const oidcConfig = {
+    authority: "https://authentik.viktorbarzin.me/application/o/wrongmove/",
+    client_id: "5AJKRgcdgVm1OyApBzFkadDFfStW9a555zwv2MOe",
+    redirect_uri: import.meta.env.MODE === 'development' ? "https://localhost/callback" : "https://wrongmove.viktorbarzin.me/callback",
+    post_logout_redirect_uri: import.meta.env.MODE === 'development' ? "https://localhost/" : "https://wrongmove.viktorbarzin.me/",
+    userStore: new WebStorageStateStore({ store: window.localStorage }),
+    response_type: 'code', // PKCE flow (recommended for SPAs)
+    scope: 'openid profile email', // Requested scopes
+    automaticSilentRenew: true, // Renew tokens silently
+    filterProtocolClaims: true,
+    loadUserInfo: true,
+};