chore: clean up repo structure

- Add node_modules/, test-results/, e2e-report/, .omp/ to .gitignore
- Remove throwaway debug scripts (debug-pw*.js, debug-login-dom.js)
- Remove empty mock-server/ directory
- Untrack harness artifact (.omp/plans/)
- Add missing project files to git (e2e tests, Dockerfiles, tooling configs)

luci-dev/TODO.md

@@ -0,0 +1,22 @@
+# E2E Test Implementation Checklist
+
+## Done
+- [x] Fix `docker-compose.yml` tab corruption (line 21)
+- [x] Fix Dockerfile to be buildable from base image via `podman build --security-opt seccomp=unconfined`
+- [x] Update `luci-dev` skill with podman build learnings
+
+## In Progress
+- [ ] Update `mise.toml` `docker:up` task to use `podman build` before `docker compose up -d`
+- [ ] Start stack with freshly built image and verify containers stay up
+- [ ] Verify end-to-end:
+  - `curl` ubus login returns a session ID
+  - `curl` `zt-gateway.status` returns `active_gateway: amsterdam`, `active_ip: 10.99.12.3`
+  - `curl` `zt-gateway.switch` to `tirunelveli`/`force` succeeds (mock gateway is reachable)
+
+## Pending
+- [ ] Write `e2e/login.spec.ts`
+- [ ] Write `e2e/overview.spec.ts`
+- [ ] Write `e2e/switch.spec.ts`
+- [ ] Write `e2e/drain.spec.ts`
+- [ ] Write `e2e/health.spec.ts`
+- [ ] Run tests serially and verify they pass