feat(webui,cli): U1 cross-organization read model and console verbs (#1873)

GET /api/workspace on the dev-local-owner Console: one snapshot of
projects, sessions, inbox, tasks and per-org metrics across every
organization the owner belongs to. Membership reuses the org list's
admission (organizations.members); each org is read over the same
per-org options the org pages use, with one deadline per org (4000 ms)
and a state (ok, down, starting, timeout, invalid) with a time. Every
row carries its org id; decide commands carry --org. Granted users
and the tester get 403 owner-only. Polling at 10 s, no push.

mosaic console restart and mosaic org reload <id> call the Console's
F3 routes (POST /api/console/restart, POST /api/orgs/<id>/restart/bus)
so gating, proof and trail are the Console's own; both refuse inside
an agent run first.

The cross-org assistant read is designed and stopped: it needs a new
broker read verb or role authority.

docs/TOOLS.md

@@ -311,7 +311,8 @@ scripts/mosaic decide <decision> <option> [--note <text>] [--yes]
 scripts/mosaic trail <task|decision> [--json]
 scripts/mosaic bus start <business> [--pm | --no-launch] [--dev-local-owner] | stop | status [--json]
 scripts/mosaic console start [--dev-local-owner [--dev-insecure-bind ADDR --dev-allow-host NAME[,NAME...]]] [--detach] [--port auto|N]
-scripts/mosaic console stop | status
+scripts/mosaic console stop | status | restart
+scripts/mosaic org reload <org>
 scripts/mosaic talk <role> <text> [--wait SECONDS] [--business <id>]
 scripts/mosaic project create <name> [--repo <repo>] | list [--json]
 scripts/mosaic threads [--project <project>] [--json] [--tester]
@@ -332,6 +333,8 @@ For local development on a named instance only, `mosaic bus start BUSINESS --dev
 
 `mosaic console start --dev-local-owner --dev-insecure-bind ADDR --dev-allow-host NAME[,NAME...]` opens that dev owner Console to other machines, for UI testing from another device on a trusted LAN. It has no sign-in: anyone who can reach ADDR:PORT acts as the owner. Start, and `mosaic console status` while that Console runs, print `WARNING: dev owner Console listens on ADDR:PORT with no sign-in; anyone who can reach it acts as the owner.` on stderr. ADDR is `0.0.0.0` or an IPv4 address, and a specific address must also be one of the names. NAME is a host name or IPv4 address without a port; give several as one comma-separated value. The Console answers only `NAME:<bound port>` and the loopback names, and takes a write only when Origin is `http://` plus that same Host. A browser on such an http origin sends no Fetch Metadata, so for an allowed NAME a write with that exact Origin and no `Sec-Fetch-Site` counts as same-origin; a `Sec-Fetch-Site` the browser did send is still checked. Both flags are refused without `--dev-local-owner`, and `--dev-insecure-bind` is refused without a `--dev-allow-host`. SSO, preview and tester Consoles stay on loopback. The Console state file records `bind` and `allowHosts`. `mosaic console status` prints the state as JSON (`bind` is `127.0.0.1` for a loopback Console) and never moves a stale state file.
 
+`mosaic console restart` and `mosaic org reload ORG` are the Console's Settings controls (F3) from a terminal (U1, #1873). Each sends one request to the running Console named in the instance's console state, as the page sends it (the Console's own Host and Origin, `Sec-Fetch-Site: same-origin`, a JSON `{}` body), so the Console applies the same owner, `--send` and origin checks and writes the same action trail, `<dataRoot>/console/actions.jsonl`. Both refuse inside an agent run (exit 3) before reading anything, and refuse with exit 3 when no Console runs. `console restart` works only for a Console started in the foreground by `mosaic console start` (otherwise the Console answers `not-supervised`); it waits up to 30 seconds for the relaunched Console to answer and prints `{"outcome":"restarted","from":OLD,"boot":NEW}`. `org reload ORG` restarts a running bus or starts a stopped one and prints the Console's done receipt. A request that left but got no answer is reported as outcome unknown (exit 1) and is never retried; check `mosaic console status`, `mosaic bus status ORG` and the trail. `mosaic bus restart ORG` remains the trail-less host verb.
+
 The instance processing switch is separate from per-business launches off/on.
 `mosaic halt` durably stops managed processing across every business in the
 selected configuration's data root. The bus stays up for reads and human