api key integration

.env.example

@@ -120,3 +120,16 @@ EMBEDDING_DIMENSIONS=0
 # ── Geocoding ───────────────────────────────────────────────────────────────
 # Google Geocoding when set; OpenStreetMap's Nominatim otherwise.
 GEOCODER_API_KEY=
+
+# Nearle Buddy. Any OpenAI-compatible endpoint; empty provider disables the
+# assistant entirely and the console's composer stays disabled.
+#   Groq:   https://api.groq.com/openai/v1   openai/gpt-oss-120b
+#   Ollama: http://localhost:11434/v1        (no key needed)
+ASSISTANT_PROVIDER=
+ASSISTANT_BASE_URL=
+ASSISTANT_API_KEY=
+ASSISTANT_MODEL=
+# Optional per-tier overrides. ASSISTANT_MODEL alone sets all three.
+ASSISTANT_MODEL_FAST=
+ASSISTANT_MODEL_BALANCED=
+ASSISTANT_MODEL_DEEP=