ch.qos.logback.classic.Logger instances are cached per class and shared for the
whole JVM, and surefire reuses forks. A test that pins a shared logger's level
and restores only the appender leaves that level pinned for every test that
runs after it, in the same class or a different one in the same fork.
Move CapturedLog (merged in #527 for #525) out of SessionManagerTest into
dev.ltms.fleet.testing.CapturedLog, and convert all 19 unrestored setLevel
pins across 9 files to it, so there is exactly one way to capture and pin a
logger in this test tree:
- FleetdAwaitHerdrTest, FleetdReplyInboxSelectionTest, AuditLogTest,
CompletionResolverTest, InjectorTest (4), LeadRolloverTest,
AmqpConnectionFailureLoggerTest, GitWorktreesTest (8),
WorktreeSessionManagerTest.
AuditLog logs through a named "audit" logger rather than a class, so
CapturedLog gains String-named at()/of() overloads alongside the existing
Class-based ones, plus a setLevel() method so a fixture that already pinned a
coarser baseline (GitWorktreesTest's @BeforeEach) can re-pin further for one
test without losing what close() restores.
Adds an ordered proving test to WorktreeSessionManagerTest asserting the
SessionManager logger level is back to a known baseline after the dirty-
worktree release test runs; this proves the within-class case only, since
JUnit does not guarantee cross-class ordering.
Every existing intentional pin (SessionManagerTest's two explicit INFO pins
and its @BeforeAll DEBUG baseline) is left untouched, per the ticket.