Brief agents on the environment a fresh checkout cannot infer

.github/workflows/ci.ymlmodified+3-0

Changes to .github/workflows/ci.yml

		⋯293 linesShow the 293 lines above this hunk@@ -294,6 +294,9 @@ jobs:
294	294	- name: Test dependency-bot job selection
295	295	run: bun test scripts/buddy-schedule.test.ts scripts/buddy-update.test.ts
296	296
	297	+ - name: Test agent environment briefing
	298	+ run: bun test scripts/agents-guidelines.test.ts
	299	+
297	300	- name: Test merged SBOM inventory
298	301	run: bun test scripts/merge-sbom.test.ts
299	302