dsh-tdai-memory: TencentDB Agent Memory Plugin for DeepSeek Harness

dsh-tdai-memory is an MIT-licensed plugin (v0.2.14, requiring Node >=22.18) for DeepSeek Harness (DSH), designed to provide a long-term memory layer for the Web profile. It enables memory retention and structuring through L0 conversation capture, L1 structured memory extraction (facts/preferences/events), L2 scenario generation, and L3 user profile construction. The core functionalities of the plugin include automatically recalling and injecting relevant memories as dynamic context during prompt assembly, as well as providing two search tools: `tdai_memory_search` and `tdai_conversation_search`. The installation method is via `dsh plugin`.