Add ccc-server/client/queue bins and blessed queue TUI

- bin/ccc-server, ccc-client, ccc-queue wired up via package.json bin
- client/config.mjs: shared secrets/user resolution from CLI args or
  CCC_SECRETS/CCC_USER env vars
- ccc-queue: blessed TUI with two-pane layout (list + detail), polls
  every 2s, y/n to approve/deny selected item, r to refresh, q to quit

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

bin/ccc-client.mjs

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+#!/usr/bin/env node
+import '../client/index.mjs';

bin/ccc-queue.mjs

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+#!/usr/bin/env node
+import blessed from 'blessed';
+import { load_client_config } from '../client/config.mjs';
+import { get_queue, resolve_queue_item } from '../client/index.mjs';
+
+const POLL_INTERVAL = 2000;
+
+const { username, secret } = load_client_config(process.argv);
+
+const screen = blessed.screen({
+	smartCSR: true,
+	title: 'ccc-queue',
+});
+
+// ── Layout ────────────────────────────────────────────────────────────────────
+
+const list_box = blessed.list({
+	top: 0,
+	left: 0,
+	width: '40%',
+	height: '100%-3',
+	border: { type: 'line' },
+	label: ' Pending Actions ',
+	scrollable: true,
+	keys: true,
+	vi: true,
+	mouse: true,
+	style: {
+		selected: { bg: 'blue', fg: 'white', bold: true },
+		border: { fg: 'cyan' },
+		label: { fg: 'cyan', bold: true },
+	},
+});
+
+const detail_box = blessed.box({
+	top: 0,
+	left: '40%',
+	width: '60%',
+	height: '100%-3',
+	border: { type: 'line' },
+	label: ' Details ',
+	scrollable: true,
+	alwaysScroll: true,
+	tags: true,
+	style: {
+		border: { fg: 'cyan' },
+		label: { fg: 'cyan', bold: true },
+	},
+});
+
+const status_bar = blessed.box({
+	bottom: 0,
+	left: 0,
+	width: '100%',
+	height: 3,
+	border: { type: 'line' },
+	tags: true,
+	style: { border: { fg: 'grey' } },
+});
+
+screen.append(list_box);
+screen.append(detail_box);
+screen.append(status_bar);
+
+// ── State ─────────────────────────────────────────────────────────────────────
+
+let items = [];
+let status_text = '';
+
+function set_status(text, is_error = false) {
+	status_text = text;
+	const color = is_error ? 'red' : 'green';
+	status_bar.setContent(
+		`  {${color}-fg}${text}{/${color}-fg}   ` +
+		`{grey-fg}[y]{/grey-fg} approve  ` +
+		`{grey-fg}[n]{/grey-fg} deny  ` +
+		`{grey-fg}[r]{/grey-fg} refresh  ` +
+		`{grey-fg}[q]{/grey-fg} quit`
+	);
+	screen.render();
+}
+
+function render_detail(item) {
+	if (!item) {
+		detail_box.setContent('{grey-fg}No item selected{/grey-fg}');
+		return;
+	}
+	const lines = [
+		`{bold}Action:{/bold}       ${item.action}`,
+		`{bold}ID:{/bold}           ${item.id}`,
+		`{bold}Submitted by:{/bold} ${item.submitted_by}`,
+		`{bold}Created:{/bold}      ${item.created_at}`,
+		'',
+		'{bold}Params:{/bold}',
+	];
+	for (const [k, v] of Object.entries(item.params ?? {})) {
+		lines.push(`  {cyan-fg}${k}{/cyan-fg}: ${v}`);
+	}
+	detail_box.setContent(lines.join('\n'));
+}
+
+function render_list() {
+	const selected = list_box.selected ?? 0;
+	list_box.clearItems();
+	if (items.length === 0) {
+		list_box.addItem('{grey-fg}(no pending items){/grey-fg}');
+	} else {
+		for (const item of items) {
+			list_box.addItem(`{yellow-fg}${item.id.slice(0, 8)}{/yellow-fg}  ${item.action}`);
+		}
+		list_box.select(Math.min(selected, items.length - 1));
+	}
+	render_detail(items[list_box.selected] ?? null);
+	screen.render();
+}
+
+// ── Polling ───────────────────────────────────────────────────────────────────
+
+async function refresh() {
+	try {
+		items = await get_queue(username, secret);
+		render_list();
+		set_status(`Last refresh: ${new Date().toLocaleTimeString()}`);
+	} catch (err) {
+		set_status(`Refresh failed: ${err.message}`, true);
+	}
+}
+
+// ── Actions ───────────────────────────────────────────────────────────────────
+
+async function decide(decision) {
+	const item = items[list_box.selected];
+	if (!item) {
+		return;
+	}
+	set_status(`Sending ${decision} for ${item.id.slice(0, 8)}…`);
+	try {
+		await resolve_queue_item(item.id, decision, username, secret);
+		await refresh();
+	} catch (err) {
+		set_status(`Failed: ${err.message}`, true);
+	}
+}
+
+// ── Keys ──────────────────────────────────────────────────────────────────────
+
+screen.key(['q', 'C-c'], () => process.exit(0));
+screen.key('r', refresh);
+screen.key('y', () => decide('approve'));
+screen.key('n', () => decide('deny'));
+
+list_box.on('select item', () => {
+	render_detail(items[list_box.selected] ?? null);
+	screen.render();
+});
+
+list_box.focus();
+
+// ── Boot ──────────────────────────────────────────────────────────────────────
+
+set_status('Connecting…');
+refresh();
+const poll = setInterval(refresh, POLL_INTERVAL);
+poll.unref();

bin/ccc-server.mjs

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+#!/usr/bin/env node
+import '../server/index.mjs';