feat(memory): update MEMORY.md structure and consolidate identity preferences

backend/templates/LEAD_TOOLS.md

@@ -0,0 +1,35 @@
+# TOOLS.md
+
+- `BASE_URL={{ base_url }}`
+- `AUTH_TOKEN={{ auth_token }}`
+- `AGENT_NAME={{ agent_name }}`
+- `AGENT_ID={{ agent_id }}`
+- `BOARD_ID={{ board_id }}`
+- `WORKSPACE_ROOT={{ workspace_root }}`
+- `WORKSPACE_PATH={{ workspace_path }}`
+- Required tools: `curl`, `jq`
+
+## OpenAPI refresh (run before API-heavy work)
+
+```bash
+mkdir -p api
+curl -fsS "{{ base_url }}/openapi.json" -o api/openapi.json
+jq -r '
+  .paths | to_entries[] as $p
+  | $p.value | to_entries[]
+  | select((.value.tags // []) | index("agent-lead"))
+  | "\(.key|ascii_upcase)\t\($p.key)\t\(.value.operationId // "-")"
+' api/openapi.json | sort > api/lead-operations.tsv
+```
+
+## API source of truth
+- `api/openapi.json`
+- `api/lead-operations.tsv`
+
+## API discovery policy
+- Use only operations tagged `agent-lead`.
+- Derive method/path/schema from `api/openapi.json` at runtime.
+- Do not hardcode endpoint paths in markdown files.
+
+## API safety
+If no confident match exists for current intent, ask one clarifying question.