ops(sol): add public edge host preparation

sol/public-edge/README.md

@@ -0,0 +1,29 @@
+# sol public edge
+
+Host preparation for public `HTTP` and `HTTPS` exposure on `sol`.
+
+## Purpose
+
+- reserve and open `80/tcp` and `443/tcp` on `sol`
+- keep the host-side firewall state reproducible from Git
+- support the cluster-side `public-edge` module in `trade-next/trade-gitops`
+
+## Operator Flow
+
+From the repository root:
+
+```bash
+./sol/public-edge/scripts/prepare-sol-public-edge.sh
+```
+
+Or push to `main` and let `.gitea/workflows/prepare-sol-public-edge.yaml` execute the same step from the `trade-next` runner.
+
+This script:
+
+- verifies the target host is reachable over SSH
+- opens `80/tcp` and `443/tcp` on `enp6s0` in `ufw` if the rules are missing
+- prints the resulting `ufw` rules and current listeners on `80` and `443`
+
+## Workflow Prerequisite
+
+- organization secret `SOL_SSH_PRIVATE_KEY_B64` must contain the base64-encoded private key for `user@149.50.96.162`