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J. Nick Koston
237cfdebfc
FanTraits contained a std::vector<const char *> for preset modes. Every get_traits() call reconstructed this vector, causing heap allocations on every publish_state() and control()/perform() call. Move the vector storage to the Fan base class and have FanTraits hold a const pointer instead. Internal callers (save_state_, find_preset_mode_) search the Fan-owned vector directly, avoiding traits reconstruction. The old FanTraits setters are preserved as deprecated compatibility overloads (removed in 2026.11.0) that self-own the data, so external components continue to compile — they just get a deprecation warning and still heap-allocate until they migrate.
