Add multilingual language and systems learning tracks

tl/basic-foundations-20261101/README.md

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+# BASIC — mga unang hakbang
+
+[Agila University track](https://edu.agilaos.com/track.php?track=21&lang=tl)
+
+Mga 15 minuto bawat aralin. Hulaan, patakbuhin, baguhin, ipaliwanag, at sagutan ang pagsusulit sa University.
+
+- [Lesson 1: Ang unang programang kaya mong ipaliwanag](lesson-1/lesson.html)
+- [Lesson 2: Mga value at desisyon](lesson-2/lesson.html)
+- [Lesson 3: Function at malinaw na patakaran](lesson-3/lesson.html)