chore: add local env example

.local.env.example

@@ -0,0 +1,14 @@
+PORT=8787
+HOST=0.0.0.0
+LOG_LEVEL=info
+
+OPENCODE_MODE=embedded
+OPENCODE_MODEL=deepseek/deepseek-v4-flash
+OPENCODE_HOSTNAME=127.0.0.1
+OPENCODE_PORT=4096
+
+AGENT_LOCAL_USER_ID=local-user
+AGENT_LOCAL_PROJECT_ID=local-project
+AGENT_LOCAL_NETWORK=local-network
+
+TJWATER_API_BASE_URL=http://127.0.0.1:8000