Add Komoot import with public (bio verification) and authenticated modes

Two-mode import: public mode verifies Komoot account ownership by checking
that the user's trails.cool profile URL appears in their Komoot bio — no
credentials stored. Authenticated mode uses email + password (AES-256-GCM
encrypted) to import private tours as well.

Includes unit tests for crypto/komoot client and E2E tests for the full
connect + import flow.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

apps/journal/app/routes/api.sync.komoot.verify.ts

@@ -0,0 +1,41 @@
+// POST /api/sync/komoot/verify
+// Verifies Komoot public profile ownership by checking that the user's
+// trails.cool profile URL appears in their Komoot bio.
+// On success, creates or replaces the connected service row in public mode.
+
+import { data, redirect } from "react-router";
+import type { Route } from "./+types/api.sync.komoot.verify";
+import { getSessionUser } from "~/lib/auth/session.server";
+import { parseKomootUserId, verifyKomootOwnership } from "~/lib/komoot.server";
+import { link } from "~/lib/connected-services/manager";
+export async function action({ request }: Route.ActionArgs) {
+  const user = await getSessionUser(request);
+  if (!user) return redirect("/auth/login");
+
+  const body = (await request.json()) as { komootProfileUrl?: string };
+  const input = body.komootProfileUrl?.trim() ?? "";
+
+  const komootUserId = parseKomootUserId(input);
+  if (!komootUserId) {
+    return data({ error: "invalid_url" }, { status: 400 });
+  }
+
+  const origin = process.env.ORIGIN ?? "http://localhost:3000";
+  const trailsProfileUrl = `${origin}/users/${user.username}`;
+
+  const verified = await verifyKomootOwnership(komootUserId, trailsProfileUrl);
+  if (!verified) {
+    return data({ error: "not_verified" }, { status: 422 });
+  }
+
+  await link({
+    userId: user.id,
+    provider: "komoot",
+    credentialKind: "public",
+    credentials: { mode: "public", komootUserId },
+    providerUserId: komootUserId,
+    grantedScopes: [],
+  });
+
+  return data({ success: true });
+}