WeLe Agentic AI: LangGraph multi-agent CRM assistant with voice

.env.example

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+# ============================================
+# WeLe Agentic AI — Environment
+# ============================================
+
+# --- Server ---
+PORT=4000
+NODE_ENV=development
+PUBLIC_BASE_URL=http://localhost:4000
+
+# --- LLM providers & failover ---
+# Ordered chain of `provider:model`, tried left to right. If the first provider
+# is rate-limited, out of quota, or down, the next takes over mid-turn.
+# Providers: gmi | openrouter   (both OpenAI-compatible)
+LLM_CHAIN_SUPERVISOR=gmi:MiniMaxAI/MiniMax-M3,openrouter:nvidia/nemotron-3-ultra-550b-a55b:free
+LLM_CHAIN_AGENT=gmi:MiniMaxAI/MiniMax-M3,openrouter:nvidia/nemotron-3-ultra-550b-a55b:free
+LLM_DEFAULT_PROVIDER=gmi
+
+# GMI Cloud — free MiniMax allocation (MiniMaxAI/MiniMax-M3, MiniMaxAI/MiniMax-M2.7)
+GMI_API_KEY=
+GMI_BASE_URL=https://api.gmi-serving.com/v1
+
+# OpenRouter — fallback
+OPENROUTER_API_KEY=
+OPENROUTER_BASE_URL=https://openrouter.ai/api/v1
+
+LLM_MAX_TOKENS=4000
+
+# --- MongoDB (shared with CRM — READ path) ---
+MONGODB_URI=
+
+# --- CRM REST API (WRITE path) ---
+CRM_API_BASE=http://localhost:3000
+CRM_JWT_SECRET=
+
+# --- Redis (memory + cache; optional, falls back to in-memory) ---
+REDIS_ENABLED=true
+REDIS_HOST=localhost
+REDIS_PORT=6379
+REDIS_PASSWORD=
+REDIS_PREFIX=agentic:
+
+# --- Session / memory ---
+SESSION_TTL_SECONDS=86400
+CACHE_TTL_SECONDS=300
+MAX_HISTORY_MESSAGES=12
+
+# --- Guardrails ---
+REQUIRE_APPROVAL_FOR_WRITES=true
+MAX_TOOL_CALLS_PER_TURN=12
+SUPERVISOR_RECURSION_LIMIT=14
+AGENT_RECURSION_LIMIT=8
+RATE_LIMIT_WINDOW_MS=60000
+RATE_LIMIT_MAX=40
+
+# --- Artifacts ---
+ARTIFACT_DIR=./storage/artifacts
+ARTIFACT_TTL_HOURS=72