feat(cli): add @videojs/cli docs command for LLM-friendly installation (#1214)

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

packages/cli/src/utils/config.ts

@@ -0,0 +1,55 @@
+import { existsSync, mkdirSync, readFileSync, writeFileSync } from 'node:fs';
+import { homedir } from 'node:os';
+import { dirname, join } from 'node:path';
+
+const CONFIG_FILE = join(homedir(), '.videojs', 'config.json');
+
+export type Framework = 'html' | 'react';
+
+interface CliConfig {
+  framework?: Framework;
+}
+
+export function readConfig(): CliConfig {
+  if (!existsSync(CONFIG_FILE)) return {};
+  try {
+    return JSON.parse(readFileSync(CONFIG_FILE, 'utf-8')) as CliConfig;
+  } catch {
+    return {};
+  }
+}
+
+function writeConfig(config: CliConfig): void {
+  const dir = dirname(CONFIG_FILE);
+  mkdirSync(dir, { recursive: true });
+  writeFileSync(CONFIG_FILE, JSON.stringify(config, null, 2) + '\n', 'utf-8');
+}
+
+const VALID_CONFIG: Record<keyof CliConfig, readonly string[]> = {
+  framework: ['html', 'react'],
+};
+
+export function getConfigValue(key: string): string | undefined {
+  if (!(key in VALID_CONFIG)) {
+    throw new Error(`Unknown config key: "${key}". Valid keys: ${Object.keys(VALID_CONFIG).join(', ')}`);
+  }
+  const config = readConfig();
+  return config[key as keyof CliConfig];
+}
+
+export function setConfigValue(key: string, value: string): void {
+  const validValues = VALID_CONFIG[key as keyof CliConfig];
+  if (!validValues) {
+    throw new Error(`Unknown config key: "${key}". Valid keys: ${Object.keys(VALID_CONFIG).join(', ')}`);
+  }
+  if (!validValues.includes(value)) {
+    throw new Error(`Invalid value "${value}" for "${key}". Valid values: ${validValues.join(', ')}`);
+  }
+  const config = readConfig();
+  (config as Record<string, string>)[key] = value;
+  writeConfig(config);
+}
+
+export function listConfig(): CliConfig {
+  return readConfig();
+}