Add Unraid deployment template

docs/CODEX_EXECUTION_LOG.md

@@ -1,3 +1,30 @@
+## Sprint 31 Unraid deployment template (2026-06-17)
+
+Changed:
+- Made `docker-compose.yml` configurable through `.env` defaults for frontend port, backend port, storage path, PostGIS database/user/password, CORS origins and upload limit.
+- Added `deploy/unraid/geointel.env.example` for Unraid/Tower runtime configuration.
+- Added `deploy/unraid/geointel-unraid-template.xml` as Unraid/DockerMan-style metadata for the editable Compose stack settings.
+- Added `deploy/unraid/geointel-icon.svg` and served the same icon through `frontend/public/geointel-icon.svg`.
+- Added the frontend favicon link for the GeoIntel icon.
+- Added Sprint 31 tests for Unraid template coverage, compose variable coverage, docs and icon availability.
+- Updated root README, TODO and changelog docs.
+
+Validation:
+- `python -m pytest backend/tests/test_sprint31_unraid_template.py backend/tests/test_docker_runtime_config.py` passed: 22 tests.
+- `cd frontend && npm run typecheck` passed.
+- `cd frontend && npm run build` passed.
+- `python -m compileall backend/app` passed.
+- `cd backend && python -m pytest` passed: 177 tests.
+- `bash scripts/run_readiness_check.sh` passed: 177 backend tests, frontend typecheck/build, Alembic head check and script syntax checks.
+- `cd backend && python -m alembic heads` passed: single head `202606120900`.
+- `cd backend && python -m alembic upgrade head --sql` passed.
+- `bash -n scripts/live_migration_smoke.sh` passed.
+
+Notes:
+- Local Windows environment does not have `docker` in PATH, so local `docker compose config` could not be run from this machine.
+- The Tower deployment pass should validate Docker Compose config and live runtime after commit.
+- No API contracts, backend behavior, migrations, product features, provider fetching or AI behavior changed.
+
 ## Sprint 30 workbench component decomposition (2026-06-17)
 
 Changed: