feat(standards): fix F11-F16 and rebuild bundle (43 components) + trial findings

- F11 PopulateRule field_name/collection_name corrections
- F12 service adaptor update handles PopulatingRepository
- F13 nested-references section; F14 authless /users/me guidance
- F15 template ruff-clean; F16 stop vendoring .ruff_cache, ship .gitignore
- document --template-style in build_recipe/spec_first_routing; refresh collected
  openapi-first + standards bundle (12 modules, 43 components)
- add trial.md and trial_findings.md (F1-F16, re-trial A/B evidence)

standards/src/templates/app/main.py

@@ -4,6 +4,7 @@ FastAPI application bootstrap — uses OpenAPIFirstApp for spec-driven routing.
 Handlers are looked up by operationId in interfaces.openapi, so no router tables
 are declared here; the lifespan initializes and shuts down app resources.
 """
+# ruff: noqa: E402
 import logging
 from contextlib import asynccontextmanager