[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>

.dockerignore

@@ -0,0 +1,27 @@
+.git
+.github
+.cursor
+_docs
+.venv
+__pycache__
+.pytest_cache
+.ruff_cache
+.mypy_cache
+.env
+.env.*
+*.pem
+*.key
+*.secret
+data/input/*
+data/cache/*
+data/fdr/*
+data/test-results/*
+*.tlog
+*.ulg
+*.bag
+*.mcap
+*.cbor
+*.parquet
+*.mp4
+*.mov
+*.avi