Add docs/V1_10_VALIDATION.md from Claro v1.17.26 zip

docs/V1_10_VALIDATION.md

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+# Claro v1.10.26 Validation
+
+Validated from a clean package with:
+
+```bash
+gcc -std=c99 src/claro.c -O0 -o claro -lm
+./claro --version
+./claro test
+./claro validate
+```
+
+Expected result:
+
+```text
+Claro v1.10.26
+PASS: 0 failure(s)
+Validation passed. Claro v1.10.26 stable package is ready for use.
+```
+
+Also validate a few first scripts:
+
+```bash
+./claro lessons/01_hello.claro
+./claro examples/quiz.claro
+./claro examples/simple_functions.claro
+./claro examples/text_polish.claro
+```