config(git,claude,ssh): templated gitconfig; claude settings/commands/hooks/skills; ssh config

gitconfig: name/email from chezmoi data, gh credential helper by PATH
lookup (portable to darwin). claude: no credentials, history, projects,
sessions, or plugin caches. ssh config as private_ (0600).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

dot_claude/skills/turnstile-spin/references/nextjs-app.md

@@ -0,0 +1,110 @@
+# Next.js (App Router)
+
+For `app/`-directory Next.js projects. The widget needs to run on the client, so the page or component must be `"use client"`.
+
+```tsx title="app/signup/page.tsx"
+"use client";
+import Script from "next/script";
+import { useEffect, useState } from "react";
+
+declare global {
+	interface Window {
+		onTurnstileSuccess?: (token: string) => void;
+	}
+}
+
+export default function SignupPage() {
+	const [token, setToken] = useState("");
+
+	useEffect(() => {
+		window.onTurnstileSuccess = (t: string) => setToken(t);
+	}, []);
+
+	async function handleSubmit(e: React.FormEvent<HTMLFormElement>) {
+		e.preventDefault();
+		const res = await fetch("https://YOUR_WORKER_URL/", {
+			method: "POST",
+			headers: { "Content-Type": "application/json" },
+			body: JSON.stringify({ token }),
+		});
+		const data = await res.json();
+		if (data.success) {
+			// proceed
+		}
+	}
+
+	return (
+		<>
+			<Script
+				src="https://challenges.cloudflare.com/turnstile/v0/api.js"
+				strategy="afterInteractive"
+			/>
+			<form onSubmit={handleSubmit}>
+				<input name="email" type="email" required />
+				<div
+					className="cf-turnstile"
+					data-sitekey="YOUR_SITEKEY"
+					data-action="turnstile-spin-v1"
+					data-callback="onTurnstileSuccess"
+				/>
+				<button type="submit" disabled={!token}>
+					Sign up
+				</button>
+			</form>
+		</>
+	);
+}
+```
+
+`data-callback` expects a string referencing a global function. The `useEffect` wires `window.onTurnstileSuccess` so the widget can call back into React state.
+
+## Variant: Server Action
+
+If you are using Server Actions, do the siteverify call from the action itself. The widget still goes in a client component, but the verify call moves server-side:
+
+```tsx title="app/signup/actions.ts"
+"use server";
+
+export async function submitSignup(formData: FormData) {
+	const token = formData.get("cf-turnstile-response") as string;
+
+	const res = await fetch("https://YOUR_WORKER_URL/", {
+		method: "POST",
+		headers: { "Content-Type": "application/json" },
+		body: JSON.stringify({ token }),
+	});
+	const data = await res.json();
+	if (!data.success) {
+		return { error: "Verification failed" };
+	}
+
+	// process signup
+	return { ok: true };
+}
+```
+
+```tsx title="app/signup/page.tsx"
+"use client";
+import { submitSignup } from "./actions";
+
+export default function SignupPage() {
+	return (
+		<form action={submitSignup}>
+			<input name="email" type="email" required />
+			<div
+				className="cf-turnstile"
+				data-sitekey="YOUR_SITEKEY"
+				data-action="turnstile-spin-v1"
+			/>
+			<button type="submit">Sign up</button>
+		</form>
+	);
+}
+```
+
+## Substitutions
+
+| Placeholder        | Replace with                                |
+| ------------------ | ------------------------------------------- |
+| `YOUR_WORKER_URL`  | Deployed Worker URL from Step 5             |
+| `YOUR_SITEKEY`     | Widget site key from Step 4                 |