feat: add .env.example for easier contributor onboarding

.env.example

@@ -0,0 +1,25 @@
+# =============================================================================
+# Kubeflow Docs Agent - Environment Variables
+# =============================================================================
+# Copy this file to .env and update values for your environment.
+#
+# Usage:
+#   cp .env.example .env
+#   # Edit .env with your values
+# =============================================================================
+
+# --- LLM / KServe Configuration ---
+KSERVE_URL=http://llama.docs-agent.svc.cluster.local/openai/v1/chat/completions
+MODEL=llama3.1-8B
+
+# --- Server Configuration ---
+PORT=8000
+
+# --- Milvus Vector Database ---
+MILVUS_HOST=my-release-milvus.docs-agent.svc.cluster.local
+MILVUS_PORT=19530
+MILVUS_COLLECTION=docs_rag
+MILVUS_VECTOR_FIELD=vector
+
+# --- Embedding Model ---
+EMBEDDING_MODEL=sentence-transformers/all-mpnet-base-v2

.gitignore

@@ -217,4 +217,4 @@ feast_repo/registry.db
 
 # Compiled pipeline YAML
 pipelines/*.yaml
-!pipelines/README.md
+!pipelines/README.md