Promote AgentCompany-New to the repository root and retire the old app

The legacy application - its src, tests, landing site, promo assets, docs,
release tooling, CI workflows, and root configs - leaves the tree; it stays
reachable in history. Everything under AgentCompany-New moves up unchanged:
same package name, so the production userData/database path is untouched,
and e2e/build scripts already resolved paths relative to the project. The
developer cred.txt stays gitignored at its new location. Full verify:ci
passes from the new root.

landing/functions/api/download-stats.ts

@@ -1,34 +0,0 @@
-import type { CounterDatabase, PagesHandler } from "../types";
-import { DOWNLOAD_COUNT_SEED } from "../../lib/downloads";
-
-interface Env {
-  DOWNLOAD_COUNTER_DB: CounterDatabase;
-}
-
-async function readDownloadCount(db: CounterDatabase) {
-  const result = await db
-    .prepare(`
-      SELECT
-        COALESCE(
-          (SELECT value FROM download_counter_settings WHERE key = 'base_downloads'),
-          ?
-        ) + COUNT(*) AS downloads
-      FROM unique_download_windows
-    `)
-    .bind(DOWNLOAD_COUNT_SEED)
-    .first<{ downloads: number }>();
-
-  return result?.downloads ?? DOWNLOAD_COUNT_SEED;
-}
-
-export const onRequestGet: PagesHandler<Env> = async (context) => {
-  const downloads = await readDownloadCount(context.env.DOWNLOAD_COUNTER_DB);
-  return Response.json(
-    { downloads },
-    {
-      headers: {
-        "Cache-Control": "no-store",
-      },
-    },
-  );
-};

landing/functions/api/download.ts

@@ -1,73 +0,0 @@
-import {
-  DOWNLOAD_DEDUP_WINDOW_MS,
-  getDownloadAsset,
-} from "../../lib/downloads";
-import type { CounterDatabase, PagesHandler } from "../types";
-
-interface Env {
-  DOWNLOAD_COUNTER_DB: CounterDatabase;
-  DOWNLOAD_COUNTER_SALT?: string;
-}
-
-function getClientIp(request: Request) {
-  const cfConnectingIp = request.headers.get("CF-Connecting-IP")?.trim();
-  if (cfConnectingIp) {
-    return cfConnectingIp;
-  }
-
-  const forwardedFor = request.headers.get("X-Forwarded-For")?.split(",")[0]?.trim();
-  return forwardedFor || null;
-}
-
-function getWindowKey(now = Date.now()) {
-  return Math.floor(now / DOWNLOAD_DEDUP_WINDOW_MS);
-}
-
-async function sha256Hex(input: string) {
-  const buffer = await crypto.subtle.digest("SHA-256", new TextEncoder().encode(input));
-  return Array.from(new Uint8Array(buffer), (byte) => byte.toString(16).padStart(2, "0")).join("");
-}
-
-async function countUniqueDownload(db: CounterDatabase, request: Request, assetId: string, salt: string | undefined) {
-  const clientIp = getClientIp(request);
-  if (!clientIp) {
-    return;
-  }
-
-  const ipHash = await sha256Hex(`${salt ?? ""}:${clientIp}`);
-  const windowKey = getWindowKey();
-
-  await db
-    .prepare(`
-      INSERT OR IGNORE INTO unique_download_windows (
-        ip_hash,
-        window_key,
-        first_asset_id,
-        created_at
-      ) VALUES (?, ?, ?, datetime('now'))
-    `)
-    .bind(ipHash, windowKey, assetId)
-    .run();
-}
-
-export const onRequestGet: PagesHandler<Env> = async (context) => {
-  const url = new URL(context.request.url);
-  const assetId = url.searchParams.get("asset")?.trim();
-  if (!assetId) {
-    return new Response("Missing asset parameter.", { status: 400 });
-  }
-
-  const asset = getDownloadAsset(assetId);
-  if (!asset) {
-    return new Response("Unknown asset.", { status: 404 });
-  }
-
-  await countUniqueDownload(
-    context.env.DOWNLOAD_COUNTER_DB,
-    context.request,
-    asset.id,
-    context.env.DOWNLOAD_COUNTER_SALT,
-  );
-
-  return Response.redirect(asset.href, 302);
-};