Add multi-account OAuth, Obsidian integration, product assets, and test tooling

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

product/site/verify.mjs

@@ -0,0 +1,62 @@
+import { spawn } from "child_process";
+
+const commands = [
+  {
+    label: "smoke",
+    cmd: "node",
+    args: ["product/site/smoke-test.cjs"],
+    env: {},
+  },
+  {
+    label: "e2e-desktop",
+    cmd: "node",
+    args: ["product/site/e2e-test.mjs"],
+    env: {
+      SQUAREMCP_E2E_PROFILE: "desktop",
+      SQUAREMCP_E2E_SCREENSHOT: "/tmp/squaremcp-e2e-desktop.png",
+    },
+  },
+  {
+    label: "e2e-mobile",
+    cmd: "node",
+    args: ["product/site/e2e-test.mjs"],
+    env: {
+      SQUAREMCP_E2E_PROFILE: "mobile",
+      SQUAREMCP_E2E_SCREENSHOT: "/tmp/squaremcp-e2e-mobile.png",
+    },
+  },
+];
+
+function runCommand({ label, cmd, args, env }) {
+  return new Promise((resolve, reject) => {
+    const child = spawn(cmd, args, {
+      stdio: "inherit",
+      env: { ...process.env, ...env },
+    });
+
+    child.on("exit", (code) => {
+      if (code === 0) {
+        resolve();
+        return;
+      }
+      reject(new Error(`${label} failed with exit code ${code}`));
+    });
+    child.on("error", reject);
+  });
+}
+
+async function main() {
+  for (const command of commands) {
+    console.log(`\n==> ${command.label}`);
+    await runCommand(command);
+  }
+
+  console.log("\nsquaremcp product site verification: PASS");
+  console.log("desktop_screenshot: /tmp/squaremcp-e2e-desktop.png");
+  console.log("mobile_screenshot: /tmp/squaremcp-e2e-mobile.png");
+}
+
+main().catch((error) => {
+  console.error(`squaremcp product site verification: FAIL: ${error.message}`);
+  process.exit(1);
+});