v1.0.3: Change default behavior to always show help without subcommand; add README.md; update playbook.md

src/pyhdwallet.py

@@ -8,8 +8,8 @@ Commands:
   - recover (offline): derive addresses from mnemonic/seed; optionally encrypt payload to PGP pubkey
   - test (offline): minimal self-test
 
-Usability fix:
-  - If you run without a subcommand (e.g. --mnemonic ...), it behaves like "recover".
+Usability:
+  - Run with a subcommand (e.g., 'gen', 'recover'). Use -h for details.
 
 Security:
   - gen/recover/test block network I/O via NetworkGuard.
@@ -667,11 +667,7 @@ def main():
             cmd_test(args)
             return
 
-        # No subcommand: treat as recover if user provided recover inputs
-        if args.mnemonic or args.seed or args.interactive:
-            cmd_recover(args)
-            return
-
+        # No subcommand: Always show help and exit
         parser.print_help()
         sys.exit(2)