refactor(cli): colocate --help examples in command files (#202)

Move per-command examples from the centralized `help.ts` record into
each command file as `export const examples: Example[]`. help.ts now
dynamically imports them at --help time.

This means adding a new command and its examples happens in one file
instead of two, reducing the chance of forgetting examples.

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

packages/cli/src/commands/info.ts

@@ -1,5 +1,11 @@
 import { defineCommand } from "citty";
+import type { Example } from "./_examples.js";
 import { readFileSync, readdirSync, statSync } from "node:fs";
+
+export const examples: Example[] = [
+  ["Show project metadata", "hyperframes info"],
+  ["Output as JSON", "hyperframes info --json"],
+];
 import { join } from "node:path";
 import { parseHtml } from "@hyperframes/core";
 import { c } from "../ui/colors.js";