feat: add admin CLI for project management

- User management (list, create, delete, reset-password)
- Data CRUD for all 32 collections
- Import/export with JSON support
- Worker/queue management (status, jobs, retry, trigger)
- Webhook management (list, test, deliveries, retry)
- Agent management (list, CRUD, tasks, trigger, activity)
- Health diagnostics (check, errors, stats)
- JSON output mode (--json flag)
- Run via: npm run cli -- <command>

packages/cli/lib/args.ts

@@ -0,0 +1,72 @@
+export interface ParsedArgs {
+  command: string;
+  subcommand: string;
+  positional: string[];
+  flags: Record<string, string | boolean>;
+}
+
+export function parseArgs(argv: string[]): ParsedArgs {
+  const args = argv.slice(2); // skip node and script path
+  const flags: Record<string, string | boolean> = {};
+  const positional: string[] = [];
+
+  for (let i = 0; i < args.length; i++) {
+    const arg = args[i];
+    if (arg.startsWith('--')) {
+      const key = arg.slice(2);
+      // Check if next arg is a value (not a flag)
+      const next = args[i + 1];
+      if (next && !next.startsWith('--')) {
+        flags[key] = next;
+        i++;
+      } else {
+        flags[key] = true;
+      }
+    } else if (arg.startsWith('-') && arg.length === 2) {
+      // Short flags like -j
+      const key = arg.slice(1);
+      const next = args[i + 1];
+      if (next && !next.startsWith('-')) {
+        flags[key] = next;
+        i++;
+      } else {
+        flags[key] = true;
+      }
+    } else {
+      positional.push(arg);
+    }
+  }
+
+  return {
+    command: positional[0] || '',
+    subcommand: positional[1] || '',
+    positional: positional.slice(2),
+    flags,
+  };
+}
+
+export function getFlag(flags: Record<string, string | boolean>, name: string, defaultValue = ''): string {
+  const val = flags[name];
+  if (val === undefined || val === true) return defaultValue;
+  return String(val);
+}
+
+export function getFlagNumber(flags: Record<string, string | boolean>, name: string, defaultValue: number): number {
+  const val = getFlag(flags, name);
+  if (!val) return defaultValue;
+  const num = parseInt(val, 10);
+  return isNaN(num) ? defaultValue : num;
+}
+
+export function hasFlag(flags: Record<string, string | boolean>, name: string): boolean {
+  return flags[name] !== undefined;
+}
+
+export function requirePositional(positional: string[], index: number, name: string): string {
+  const val = positional[index];
+  if (!val) {
+    console.error(`Error: Missing required argument: ${name}`);
+    process.exit(1);
+  }
+  return val;
+}