[AZ-219] Scaffold onboard runtime project

Add the initial source, test, infrastructure, CI, configuration, and evidence-path scaffold so dependent implementation tasks have stable package and runtime boundaries.

Co-authored-by: Cursor <cursoragent@cursor.com>

deployment/scripts/collect_evidence.sh

@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+mkdir -p e2e/reports data/test-results
+printf 'Evidence collection placeholder. Wire runtime reports in deploy phase.\n'