2 Commits

Include renames

Author	SHA1	Message	Date
Eric Wang	6d0a2169c8	refactor(agent): inject deps via context_schema, LLM-driven photo/confirm nodes ... - graph.py: LangGraph-native DI - StateGraph(context_schema=GraphDeps), nodes take (state, runtime: Runtime[GraphDeps]); build_graph() decoupled from LLM; deleted scaffold _event_reply/_fake_llm_propose/stub nodes - photo.py: model proposes stage+body via per-mode prompts (direct/addon); validator enforces clientMode exits; deterministic event forcing removed - confirm.py: single runtime for single/dual confirm, extraction call isolated per person_index - llm.py: workflow_fake_llm() (offline workflow-faithful responder, history-aware) for smoke/tests - backend: LangGraphBackend(graph, llm) passes context per call - tests: invoke helpers inject GraphDeps; illegal-proposal test asserts error + state untouched via second well-behaved fake Verified: 143 passed; smoke turns 1/2/1 with original welcome text	2026-10-21 15:11:16 +08:00
Eric Wang	5d68b731d4	feat(backends): wire LangGraph backend behind AGENT_BACKEND switch (assignment 2) ... - src/backends/langgraph.py: LangGraphBackend implements ChatBackend; complete() runs one graph turn per session (thread_id=sessionId) and returns state-prefixed content; stream() emits the full state prefix before body fragments (full-answer slicing, not yet real incremental output - assignment 8) - src/core/config.py: AGENT_BACKEND=fastgpt|langgraph, langgraph mode no longer requires FastGPT credentials at startup - src/core/fastgpt_client.py: lifespan builds the backend by switch - test/backends/test_langgraph_backend.py: adapter acceptance tests Verified: - pytest: 48 passed - AGENT_BACKEND=langgraph uvicorn: POST /chat -> 1002; browser_addon -> browser_addon.1002; SSE = stage_code, text_delta, single done Known limit: stream slices a complete answer; no formUpdate deltas yet (assignment 6).	2026-10-19 14:29:31 +08:00