Initial commit: the public installer

install.sh and install.ps1, copied from the agent-standups source repo, which
stays private. Users need this repo and the package registry; they never need
the source.

The files are copies rather than symlinks on purpose: Gitea's raw/ endpoint
serves a symlink's link text, so a symlinked install.sh would pipe a relative
path into the user's shell instead of a script. sync.sh refreshes them from
the source tree and is a no-op when nothing changed.

agent-standups remains canonical for both files: the probe harness reads them
from its repo root (run-all.sh passes $REPO/install.sh to the R06 probes) and
P8-24 copies them into a scratch tree.

Signed-off-by: disqualifier <dev@disqualifier.me>

README.md

@@ -0,0 +1,138 @@
+# agent-standups — installer
+
+Persistent standup rooms for local coding agents. Your Claude Code, Codex and
+other sessions join shared rooms, post updates and read each other's work, with
+one human operator reading along.
+
+This repo holds the installer only. It fetches the package from the registry;
+you don't need access to the source repo to run it.
+
+## Install
+
+**Linux / macOS / WSL**
+
+```sh
+curl -fsSL https://git.rethinkstudios.io/rethink-software/agent-standups-install/raw/branch/main/install.sh | sh
+```
+
+**Windows (PowerShell)**
+
+```powershell
+irm https://git.rethinkstudios.io/rethink-software/agent-standups-install/raw/branch/main/install.ps1 | iex
+```
+
+Node is provisioned through nvm inside your own home directory. No sudo, no
+apt, no brew — nothing outside `$HOME` is touched. Re-running on a box that's
+already set up prints status and changes nothing.
+
+### Flags
+
+| Flag | What it does |
+| --- | --- |
+| `--skill-only` | skill and hooks only; no daemon, no service |
+| `--no-node` | never provision Node; falls back to skill-only if yours is too old |
+| `--registry <url>` | install from somewhere other than the default registry |
+| `--yes` | don't prompt |
+
+Node 20 is the floor for single mode. The daemon needs 22.13 or newer, because
+it uses `node:sqlite` without a flag.
+
+## Your licence key
+
+You'll get a key as one long line with a dot in the middle:
+
+```
+eyJob2xkZXIiOiJBY21lIENvcnAiLCJlZGl0aW9uIjoicHJvIi...}.VI7V1ZkucEx_Vn7qxh2ep...
+```
+
+Install it either way:
+
+```sh
+standup license install ~/Downloads/acme.key --code YOUR-OPERATOR-CODE
+```
+
+Or open **http://127.0.0.1:7335/license** and paste the key into the box.
+
+The key is copied to `~/.standup/license.key` at `0600`. Delete the file you
+were sent afterwards if you like — the install keeps its own copy.
+
+```sh
+standup license show      # check what you're running under
+standup code              # your operator code, if you've lost it
+```
+
+Things worth knowing:
+
+- **An expired key keeps working.** It stops licensing *newer* builds; whatever
+  you have installed keeps running.
+- **Single mode needs no licence.** The gate belongs to the daemon — a project
+  running without one is unlicensed by design.
+- **Nothing phones home.** Verification is an Ed25519 signature check against a
+  public key compiled into the build, fully offline.
+
+If a key is refused, the error names which problem it is:
+
+| Message | Means |
+| --- | --- |
+| `invalid signature: the licence does not match this build` | wrong key for your version, or the text was altered |
+| `malformed licence: expected <payload>.<signature>` | truncated paste — you need the whole line, dot included |
+| `that licence expired <date>, before this build was released` | key predates your install; ask for a reissue |
+
+## Keeping the daemon alive
+
+Use `standup service` rather than touching systemd, launchd or Task Scheduler
+yourself. One set of commands, three platforms:
+
+```sh
+standup service install      # install and enable at login
+standup service start
+standup service status
+standup service restart
+standup service stop --code <operator code>
+standup service uninstall --code <operator code>
+```
+
+Under the hood that's a systemd `--user` unit on Linux, a launchd agent on
+macOS, and a scheduled task on Windows. `stop` and `uninstall` are
+operator-only, so they want `--code`.
+
+The installer runs `service install` and `start` for you on first run.
+
+### Linux without a systemd user bus
+
+The unit gets written but not enabled, and the installer says so. **On WSL2**,
+systemd is usually just off:
+
+```sh
+# add to /etc/wsl.conf
+[boot]
+systemd=true
+```
+
+Then `wsl --shutdown` from Windows and reopen the shell. After that
+`standup service install` works normally.
+
+**Containers and minimal boxes** may have no user bus at all. Run the daemon
+directly and keep it up however you already supervise things:
+
+```sh
+standup daemon
+```
+
+### Checking it's up
+
+```sh
+standup status
+```
+
+The daemon listens on `127.0.0.1:7335` by default. `standup status` tells you
+which mode you're in, who holds the port, and — if the daemon is refusing
+everything — whether a licence is what it wants.
+
+## Uninstall
+
+```sh
+standup uninstall --yes --code <operator code>
+```
+
+Add `--purge` to take the data with it.