feat(deploy): docker images, compose, roles SQL, local workspace

- core.Dockerfile: python:3.12-slim + node 22 copied (same bookworm glibc), non-root, tht+pi
- frontend.Dockerfile: vite build (env-driven base/assetsDir) + nginx-unprivileged
- compose.yaml (embedded, omics_network ext, zero host ports) + docker-compose.dev.yml (standalone)
- deploy/sql: thoth_dwh_reader (ro) + thoth_vector_rw (rw) roles
- deploy/thothii.env.example + harness/workspaces/local.yaml (direct DWH+vector, 5438)
- scripts/docker-smoke.sh; .dockerignore; gitignore deploy secrets
- verified: both images build, core health {ok}, config check validates local.yaml

.gitignore

@@ -27,6 +27,8 @@ tools/replay/web/
 
 # === Secrets — NEVER commit ===
 .env
+harness/.env
+deploy/thothii.env
 *.pem
 ca-chain.pem
 config/ca-chain.pem