docs: clarify Claro v1 status and validation

tools/validate_rc6.py

@@ -0,0 +1,28 @@
+#!/usr/bin/env python3
+import os
+import shutil
+import subprocess
+import sys
+
+ROOT = os.path.abspath(os.path.join(os.path.dirname(__file__), '..'))
+EXE = os.path.join(ROOT, 'claro.exe' if os.name == 'nt' else 'claro')
+SRC = os.path.join(ROOT, 'src', 'claro.c')
+
+cmd = ['gcc', '-std=c99', SRC, '-O0', '-o', EXE, '-lm']
+print('+', ' '.join(cmd))
+subprocess.check_call(cmd, cwd=ROOT)
+
+checks = [
+    [EXE, '--version'],
+    [EXE, 'test'],
+    [EXE, 'check', 'tests/25_simple_syntax.claro'],
+    [EXE, 'check', 'tests/26_end_alias.claro'],
+    [EXE, 'check', 'tests/28_text_list_helpers.claro'],
+    [EXE, 'tests/29_arguments_demo.claro', 'apple', 'banana'],
+]
+
+for c in checks:
+    print('+', ' '.join(c))
+    subprocess.check_call(c, cwd=ROOT)
+
+print('RC6 validation completed.')