feat(litellm): add LiteLLM proxy with PostgreSQL and Redis

litellm/.env.example

@@ -0,0 +1,41 @@
+# Copy to .env and fill in. Never commit .env.
+#
+#   cp .env.example .env
+
+# Admin key for the proxy API and the virtual keys it issues. Must start with sk-.
+# Generate one with: echo "sk-$(openssl rand -hex 24)"
+LITELLM_MASTER_KEY=
+
+# Admin UI login.
+UI_USERNAME=admin
+UI_PASSWORD=
+
+# PostgreSQL credentials, used by the database and by LiteLLM's DATABASE_URL.
+POSTGRES_USER=litellm
+POSTGRES_PASSWORD=
+POSTGRES_DB=litellm
+
+# OpenRouter backs openrouter-free, the target of every model_group_alias in
+# config.yaml. Gemini backs gemini-embedding-001 and the Gemini chat models.
+OPENROUTER_API_KEY=
+GEMINI_API_KEY=
+
+# Keep models added in the admin UI in PostgreSQL.
+STORE_MODEL_IN_DB=True
+
+LITELLM_MODE=PRODUCTION
+LITELLM_LOG=ERROR
+
+# Provider keys for the other models in config.yaml. Uncomment here and in
+# compose.yml to enable a provider; an unset key disables only its models.
+# TOKENROUTER_API_KEY=
+# ORCAROUTER_API_KEY=
+# KIMI_API_KEY=
+# MINIMAX_API_KEY=
+# KILO_API_KEY=
+# OPENCODE_API_KEY=
+# NVIDIA_NIM_API_KEY=
+# OLLAMA_API_KEY=
+# Cloudflare Workers AI, for the commented-out Cloudflare model in config.yaml.
+# CLOUDFLARE_API_KEY=
+# CLOUDFLARE_ACCOUNT_ID=