build: let tsc find the bindings nothing reads

This project has no linter and does not want one, but `strict` says nothing
about a binding that is simply never read — and that is the one kind of dead
code a reader cannot tell apart from a deliberate seam. `tsc` already walks
every file, so it may as well answer the question.

Three had accumulated: an unread `type View` import in App, and a
`useGameMeta()` resolver in Controls and YourOwn, both of which draw their
colours from somewhere else — the game-order list has its own resolver, and
YourOwn reads the reader's own records directly. None of them were wrong, they
were just leftovers that read as intent.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>

tsconfig.json

@@ -9,6 +9,8 @@
     "noEmit": true,
     "strict": true,
     "noUncheckedIndexedAccess": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
     "noImplicitOverride": true,
     "noFallthroughCasesInSwitch": true,
     "exactOptionalPropertyTypes": true,