feat: module 10 spellgrid

SpellGrid capstone: Part I's card engine and Part II's grid engine joined at
three seams (rules -> aura data, hazard victims -> one destroy Sequence,
Sequence end -> write text, remove the dead, reparse). Three levels with
scripted solutions, a naive-timing test via a harness-only hook that
reverses the END_OF_PHASE list, CLIs in both tracks, the BATTLECRY IS DOUBLE
Expansion Drop, SpellGrid cards and words in course/cards and the catalog,
level schema cards/hand, and tools staging/copying of module levels.

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

tools/start-module.mjs

@@ -40,6 +40,13 @@ if (existsSync(cards)) {
   console.log(`Copied the course card data into ${join(ws, "cards")}`);
 }
 
+// The module's puzzle levels (Module 10's tests load them from levels/).
+const levels = join(mod.path, "levels");
+if (existsSync(levels)) {
+  cpSync(levels, join(ws, "levels"), { recursive: true });
+  console.log(`Copied the module's levels into ${join(ws, "levels")}`);
+}
+
 // Harness additions: module-local note, else the "- M<N>:" line of course/harness.md.
 const note = join(mod.path, "harness-adds.md");
 let adds = existsSync(note) ? readFileSync(note, "utf8").trim() : "";