v0.13.0 web and terminal client enhance, replay api, linux server deploy, doc and dependency update

deploy/README.md

@@ -1,7 +1,12 @@
 # Deployment Scripts
 
-Run in this order; each script's header documents its inputs. The full guide is
-[doc/deployment.md](../doc/deployment.md).
+Each script's header documents its inputs. Day-to-day database work (psql,
+accounts, deleting games, starting fresh) is in
+[doc/database.md](../doc/database.md).
+
+## FreeBSD jail
+
+Full guide: [doc/deployment.md](../doc/deployment.md). Run in this order:
 
 | Order | Where | Step | Purpose |
 |---|---|---|---|
@@ -9,13 +14,28 @@ Run in this order; each script's header documents its inputs. The full guide is
 | 2 | Jail, once | `pkg install postgresql18-server postgresql18-client stockfish` | Packages |
 | 3 | Build machine | `make server-freebsd` | Static `bin/chess-server-freebsd-amd64` |
 | 4 | Jail (root) | `freebsd/setup-jail.sh` | PostgreSQL setup, database, `chessd` service, optional log rotation and backups; rerun to upgrade |
-| 5 | Bastille host | `freebsd/nginx-chess.conf` | nginx locations for `/chess/api/` and `/chess/health` |
+| 5 | Bastille host | `nginx-chess.conf` | nginx locations for `/chess/api/`, `/chess/health`, and the `/chess` short link |
+| 6 | Jail, once | `chess-server db user add -username <name>` | First account (see the guide) |
 
-Supporting files, installed by `setup-jail.sh`:
+## Linux with systemd
+
+Full guide: [doc/deployment-linux.md](../doc/deployment-linux.md) (Debian,
+Ubuntu, Arch; PostgreSQL 17+ already running).
+
+| Order | Where | Step | Purpose |
+|---|---|---|---|
+| 1 | Host | `make server` | Static `bin/chess-server` |
+| 2 | Host (root) | `CHESS_BINARY=bin/chess-server linux/setup.sh` | Account, database, `chessd` systemd service, key, optional backup timer; rerun to upgrade |
+| 3 | Host (root) | `chess-db user add -username <name>` | First account |
+| 4 | nginx | `nginx-chess.conf` with `127.0.0.1:8080` | Optional reverse proxy |
+
+## Files
 
 - `postgresql/setup.sql` — role, database, and schema (owner or split mode)
+- `postgresql/chess-backup.sh` — nightly `pg_dump` with 14-day retention
+- `nginx-chess.conf` — nginx locations, with placeholders
 - `freebsd/rc.d/chessd` — `daemon(8)` service script
-- `freebsd/chess-backup.sh` — nightly `pg_dump` with 14-day retention
+- `linux/chessd.service` — sandboxed systemd unit; `linux/chess-backup.{service,timer}`
 
-Keep deployment-specific values (addresses, host names) in `rc.conf` and the
-host nginx configuration, not in this repository.
+Keep deployment-specific values (addresses, host names) in `rc.conf`,
+`/etc/chessd/chessd.env`, and the nginx configuration, not in this repository.