fix: module 10 review round 1 (module-local SpellGrid cards, cast target check, CLI without panic hook)

- SpellGrid cards move to course/10-spellgrid/cards; start-module and
  verify-references stage course/cards plus module-local cards up to the module,
  so M5-M9 workspaces get exactly the pre-M10 card set.
- cast() rejects a chosen-target spell without a target (checkCast/checkPlay);
  new test_10_targeted_spell_needs_target.
- Rust CLI pre-validates instead of swapping the global panic hook.
- Catalog: CRIER noun; DEATHRATTLE/BATTLECRY note on lexicon vs catalog role.
- Lesson: design note on mid-movement reparse.

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

course/10-spellgrid/reference/rust/src/harness.rs

@@ -436,6 +436,14 @@ impl SpellGrid {
     pub fn set_chooser(&mut self, chooser: impl FnMut(&str, &[String]) -> String + 'static) {
         self.grid.world_mut().set_chooser(Box::new(chooser));
     }
+    /// For the command line: why `cast` would panic, or `Ok` if it wouldn't.
+    pub fn check_cast(&self, card: &str, target: Option<Id>) -> Result<(), String> {
+        self.grid.check_cast(card, target)
+    }
+    /// For the command line: why `play` would panic, or `Ok` if it wouldn't.
+    pub fn check_play(&self, card: &str, x: i32, y: i32) -> Result<(), String> {
+        self.grid.check_play(card, x, y)
+    }
     /// Test hook: the naive engine reads the auras before the dead leave play, the
     /// same end-of-Phase steps reversed.
     pub fn with_naive_aura_timing(&mut self) {