chore: Add typechecking and pruning to CI (#2543)

.github/workflows/build.yml

@@ -28,6 +28,12 @@ jobs:
       - name: Lint
         run: yarn run lint
 
+      - name: Type-check
+        run: yarn run typecheck
+
+      - name: Check for dead exports
+        run: yarn run prune
+
       - name: Check formatting
         run: yarn run format-check
 

package.json

@@ -189,10 +189,11 @@
     "docs-update-dependencies": "./scripts/docs-update-dependencies.sh",
     "docs-update-uml": "docker run --init --rm -u \"$(id -u):$(id -g)\" -e HOME=/tmp -e JAVA_TOOL_OPTIONS=-Duser.home=/tmp -v \"$(pwd):/data\" -w /data plantuml/plantuml -tsvg docs/uml/call-sequence.puml -o /data/docs/images",
     "lint": "eslint '{src,tests}/**/*.ts'",
+    "typecheck": "tsc --noEmit -p tsconfig.json",
     "format": "prettier --write .",
     "format-check": "prettier --check .",
     "rollup": "rollup -c",
-    "prune": "ts-prune",
+    "prune": "ts-prune --error",
     "test": "vitest run",
     "coverage": "vitest run --coverage"
   },