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P4 retirement + code slim-down (~18.5k lines deleted), on top of the intent-gate WIP (docs §17/§18 + agent/tool refinements): - Delete old 8-scene multi-agent stack: XlyErpService, SceneSelector/ Chati/ErpAi/DynamicTableNl2Sql agents, DynamicToolProvider (62 meta tools), Scene/ToolMeta/ParamRule entities+mappers+startup caches - Delete whole milvus/tts/ocr packages, /api/tts + /api/ocr endpoints, tts.html, python stream_server.py; strip dead TTS JS from chat.html (playByIndex/handleNormalResponse had no callers) - Three-pass orphan sweep: 17 dead utils, 16 dead entities, dead constants/exceptions, RedisService+RedisConfig, duplicate JacksonConfig, OperableChatMemoryProvider, old prompt generators; fold PageController into MvcConfig; trim OkHttpUtil 495→39 lines - pom: ~35→13 deps (drop mybatis/JPA/webflux/tika/pdfbox/poi/jieba/ jsoup/gson/fastjson2/springdoc/mapstruct/pagehelper/pinyin4j/ spring-retry/jnr-ffi/hutool/ocr/milvus/embeddings; add starter-jdbc); war 200M+→48M - application.yml: drop milvus/tts/ocr/tesseract/mybatis blocks; GlobalExceptionHandler returns plain {code,message} JSON - docs: mark P4 retirement done in agent-architecture §13/§18 Verified: mvn clean package OK; boot smoke on :8199 (Started 0.9s, /chat 200, health db UP). Old /api/tts & /api/ocr now 404 by design.
