refactor: new structure

tasks/space-exploration/docs/space-exploration-1.md

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+# Space Exploration 1
+
+**Title:** Исследуй Планету
+**Subtitle:** Собери ресурсы, решая примеры!
+**Footer bubble:** Итого собрано на планете:
+
+## Layout
+
+- 2 columns, 20 problems per page
+- Icons: assets/icons/pack1/
+
+## Pages
+
+### Page 1
+- **Task:** A + B +/- C, where A from 8 to 16, B from 4 to 8, C from 1 to 3. Sign +/- chosen randomly
+- **Problem count:** 20
+- **Hero:** spaceship2.jpeg, direction: row-reverse
+
+### Page 2
+- **Task:** 5 * N +/- C, where N from 1 to 5, C from 1 to 6. Sign +/- chosen randomly
+- **Problem count:** 20
+- **Hero:** spaceship4.jpeg, direction: row
+
+### Page 3
+- **Task:** A * B +/- C, where A and B from 1 to 4, C from 1 to 8. Sign +/- chosen randomly
+- **Problem count:** 20
+- **Hero:** spaceship6.jpeg, direction: row-reverse