docs(course): fix review findings in modules 00–05

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

course/03-pure-game-rules.md

@@ -335,6 +335,20 @@ Valid `x` values on a board of width 5 are 0, 1, 2, 3, 4. So `x >= 0` and `x < w
 
 </details>
 
+<details><summary>Exercise 3.2 (inBounds) — near-solution (try the others first)</summary>
+
+```js
+export const inBounds = (state, p) => p.x >= 0 && p.x < ___ && ___ && ___
+```
+```scala
+def inBounds(state: GameState, p: Point): Boolean = p.x >= 0 && p.x < ___ && ___ && ___
+```
+```fsharp
+let inBounds (state: GameState) (p: Point) : bool = p.X >= 0 && p.X < ___ && ___ && ___
+```
+
+</details>
+
 <details><summary>Exercise 3.3 (turn) — nudge</summary>
 
 Write the guard first: in which two situations does the function return `state` as it is? Then the one-field copy.