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/domain/item/ports/db.py

@@ -2,9 +2,10 @@
 
 Mongo persistence for items: document schema and repository factory.
 """
+from mongo_ops import BaseDocument, BaseRepository
+
 from domain.item.models import Item
 from infra.db.repos.mongo import _repo_factory as mongo_repo_factory
-from mongo_ops import BaseDocument, BaseRepository
 
 
 class ItemDocument(Item, BaseDocument):

standards/src/templates/app/domain/job/models.py

@@ -3,6 +3,7 @@
 Job domain model — a pipeline work item consumed by the background worker.
 """
 from typing import Literal
+
 from pydantic import BaseModel, Field
 
 

standards/src/templates/app/domain/job/ports/db.py

@@ -2,9 +2,10 @@
 
 Mongo persistence for jobs: document schema and repository factory.
 """
+from mongo_ops import BaseDocument, BaseRepository
+
 from domain.job.models import Job
 from infra.db.repos.mongo import _repo_factory as mongo_repo_factory
-from mongo_ops import BaseDocument, BaseRepository
 
 
 class JobDocument(Job, BaseDocument):