fix(tests): the trigger backfill assumed keyword calls; three fixtures pass positionally (#4099)

CI run 6937 red — 3 collection errors, `positional argument follows keyword
argument`, in the three integration fixtures that call the service positionally
(`create_rule(topic.id, uid, "title", "statement")`). The script that added
`when_to_apply=` to 15 fixtures inserted it as the FIRST argument, which is
valid only where every other argument is already a keyword.

Moved to the last argument in every call, which is legal in both styles, and
the continuation indent now matches the surrounding arguments.

Also repairs self-inflicted damage: the same script added a trigger to the two
tests in test_rule_trigger_required.py whose whole purpose is to call the
creators WITHOUT one. They would have stopped raising and the guard's own
proof would have inverted — a test that passes for the opposite reason than
the one it names, which is worse than a failing one.

Caught by ast.parse across tests/ rather than by the next CI round trip.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01821k5B3Ysecp9fNYs92Kuy

tests/test_integration_rule_verification.py

@@ -44,11 +44,11 @@ async def constraint():
     book = await rulebooks_svc.create_rulebook(uid, "Environment facts")
     topic = await rulebooks_svc.create_topic(book.id, uid, "ci")
     rule = await rulebooks_svc.create_rule(
-        when_to_apply="when the moment this fixture stands in for arises",
         topic.id, uid, "The runner has no bash",
         "Write every `run:` step in POSIX sh.",
         verify_with="read the workflow's shell setting",
         expires_when="the runner can be given a bash shell",
+        when_to_apply="when the moment this fixture stands in for arises",
     )
     async with async_session() as s:
         row = await s.get(Rule, rule.id)
@@ -154,18 +154,18 @@ async def rulebook_of_three():
     book = await rulebooks_svc.create_rulebook(uid, "Sweep fixture")
     topic = await rulebooks_svc.create_topic(book.id, uid, "mixed")
     decision = await rulebooks_svc.create_rule(
-        when_to_apply="when the moment this fixture stands in for arises",
         topic.id, uid, "dev is home", "Work directly on dev.",
+        when_to_apply="when the moment this fixture stands in for arises",
     )
     never = await rulebooks_svc.create_rule(
-        when_to_apply="when the moment this fixture stands in for arises",
         topic.id, uid, "The runner has no bash", "Use POSIX sh.",
         verify_with="read the workflow's shell setting",
+        when_to_apply="when the moment this fixture stands in for arises",
     )
     stale = await rulebooks_svc.create_rule(
-        when_to_apply="when the moment this fixture stands in for arises",
         topic.id, uid, "Bumps need a dashboard tick", "Tick it first.",
         verify_with="cat CI-runner/renovate/config.js",
+        when_to_apply="when the moment this fixture stands in for arises",
     )
     async with async_session() as s:
         row = await s.get(Rule, stale.id)