fix(backthink): 主动推送降频(15min心跳+60min≤1次+推后30min冷却+刚聊过10min冷避) + 情绪约束(分类限频/活跃感知) + 剥离'我决定:push'内部标记

internal/services/backthink/mocks_test.go

@@ -106,7 +106,8 @@ func (m *mockIMAdapter) count() int { m.mu.Lock(); defer m.mu.Unlock(); return m
 // mockGate implements PushGate.
 type mockGate struct{ allow bool }
 
-func (g *mockGate) Allow(context.Context) bool { return g.allow }
+func (g *mockGate) Allow(context.Context, PushKind) bool { return g.allow }
+func (g *mockGate) RecordPush(PushKind)                  {}
 
 // newTestDB opens an isolated in-memory SQLite handle for one test and closes it
 // on cleanup.