Update new-dmn-check skill to run test suite

Author: prestoncabe

.claude/commands/new-dmn-check.md

@@ -407,9 +407,32 @@ Not:
 
 Use realistic test data: concrete IDs (e.g. `"p1"`), dates (ISO 8601), and parameter values that clearly demonstrate the pass vs. fail condition.
 
-## Step 5 — Print a Summary and Next-Steps Checklist
+## Step 5 — Run Tests
 
-After writing all files, print:
+Run the full test suites to verify the new check integrates correctly.
+
+**1. Maven tests** — compile and run the Java test suite:
+```bash
+cd library-api && mvn test
+```
+If tests fail, diagnose the error (most likely a malformed DMN or namespace conflict) and fix the DMN file before proceeding.
+
+**2. Bruno tests** — run the full API test suite (requires the library-api dev server running at `http://localhost:8083`):
+```bash
+cd library-api/test/bdt && bru run
+```
+If the server is not running, start it first (`cd library-api && quarkus dev`), wait for it to be ready, then run `bru run`.
+
+If any Bruno tests fail:
+- Check that the endpoint URL in the `.bru` files matches the actual generated route (verify in Swagger UI at `http://localhost:8083/q/swagger-ui`)
+- Verify the FEEL logic produces the expected `true`/`false`/`null` outputs for each test case
+- Fix the DMN or `.bru` files and re-run until all tests pass
+
+Only proceed to Step 6 once **both** `mvn test` and `bru run` pass cleanly.
+
+## Step 6 — Print a Summary and Next-Steps Checklist
+
+After all tests pass, print:
 
 ```
 ## Files Created
@@ -421,12 +444,8 @@ After writing all files, print:
 
 ## Next Steps
 
-- [ ] Start (or restart) the dev server: `cd library-api && quarkus dev`
-      (or `devbox services up` if using the full stack)
 - [ ] Verify the endpoint appears in Swagger UI:
       http://localhost:8083/q/swagger-ui  (look for POST /checks/{category}/{check-name})
-- [ ] Run Bruno tests: `cd library-api/test/bdt && bru run checks/{category}/{CheckName}`
-      (Pass → checkResult: true, Fail → checkResult: false, Null → checkResult: null)
 - [ ] If you created a new category, create the base module DMN first:
       library-api/src/main/resources/checks/{category}/{Category}.dmn
 ```