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Tests-001: FakeSessionManager.TryGetSession unconditionally synthesized a session, so Invoke_WhenSessionMissing_ThrowsNotFound did not actually verify the missing-session path. Added ResolveOnlySeededSessions/SeedSession to the fake, rewrote the missing-session test, and added seeded-resolution and alarm-RPC missing-session coverage. Tests-002: re-triaged. GalaxyRepository issues only constant SQL; filters are applied in-memory by GalaxyHierarchyProjector/GalaxyGlobMatcher. Kept as a valid coverage gap and added GalaxyFilterInputSafetyTests exercising filter/glob input safety directly. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>