hive-c0re copies the hive's store read token to /run/hyperhive/forge-hive-token
for nix's git credential helper, and no longer mints, reads or falls back to
the core admin token. drops the core user sweep, avatar upload, webhook
cleanup and hive-priv's RunForgeAdmin.
Comments, docs and the hive-c0re README no longer say the hive renders, locks or pushes a meta flake. core/meta is the legacy permission-seed repo that meta::remove_permission_files still commits to; builds come from internal/meta (meta_rev.rs). Docs note that a start of a stale stopped agent can fail until the swarm's update pins the config.
The hive no longer renders, locks or commits a meta flake. A rebuild's
MetaSync node picks the internal/meta commit and records it with the
hyperhive and config pins it holds; Prebuild, Swap and Create build from it,
and a head that does not pin the agent's current config fails the build
naming the agent. hive-priv's meta_rev is required.
Removed: meta.rs sync/lock/render, the manual-rebuild relock, the boot
sweep's hyperhive bump (MetaLock), the update-meta-inputs form and its
panel, MetaWindow, the hive's hyperhive_rev setting.
Kept: agent_set::refresh holds what sync_agents also did (topology.json, the
gateway's agent-socket map and nginx include), called from spawn, destroy,
rebuild and the migration.
The boot reconcile and the stale-start upgrade compare the agent's marker
with the hyperhive pin of internal/meta; the dashboard's deployed chip reads
the config marker a successful build writes.
The swarm UI's user menu moves to @hive/shared and takes the whoami URL and
authelia's URL as props; the swarm UI keeps a thin wrapper, and the hive
dashboard and the per-agent page mount the same component. The dashboard's
nginx vhost proxies /api/whoami to authelia (the agent page is served from
the same vhost), and hive-c0re's state carries authelia_public_url, set from
services.hyperhive.swarm.authelia.url. The agent page shows the menu only
behind the gateway.
A rebuild's MetaSync resolves the head of the swarm's internal/meta once and
records it; the prebuild and the swap build that flake instead of the hive's
own, and a first deploy does the same in Create. hive-priv takes the commit as
a validated meta_rev on UpdateContainer and CreateContainer and builds from its
own forge URL (HIVE_PRIV_FORGE_URL).
The head is used only when its flake lists the agent at the config commit the
forge's main is at; otherwise, and when the repo has no commit or this hive has
no core token file for nix's git, the hive renders locally as before.
hive-c0re's and hive-priv's gitconfig now share the forge credential helper and
rewrite the forge's https URLs to http, which hive-priv lacked.
The swarm controller offers its own running rev (services.hyperhive.c0re.
hyperhiveRev) as the hyperhive pin of internal/meta and takes it only when
the forge compare API shows it descends from the committed pin; merges to
hyperhive main no longer move the pin, and the first commit pins main's head.
When a commit moves the pin, every placed agent gets a TriggerDeploy.
A deploy after a meta update no longer waits on it succeeding (after_any), so
a down builder does not hold back hives that render locally.
HIVE_AGENT_NATS_URL now reaches each container in its hive facts, from
the host's deploy.hive-controller.queue.agentNatsUrl, instead of being
rendered into the meta flake. The agent option
services.hyperhive.agent.queue.natsUrl is removed; the harness unit
imports the queue credential whenever the token endpoint is set.
On deploy every agent rebuilds once (the rendered flake loses the
address), and the harness reads the address from the facts file
hive-priv writes before each start.
Refs #4857
hive-c0re's render_flake and the pieces it needs (AgentSpec, AgentPin,
pinned_git_url, the forwarded-var tables, canonical_inputs_in_lock) move
into a new crate with no IO. The forwarded values and the GitHub switch
are now arguments; hive-c0re passes what it read from its own unit env,
as before. Nothing changes on deploy: the rendered flake is byte-for-byte
the same, and hive-c0re's render tests pass unchanged.
Refs #4857
Every agent now connects to the queue and reads logs with its own secret
from the store (#5181), so the per-hive `hive-<h>-agent` OIDC client has
no reader left. Remove it end to end:
- hive-c0re no longer forwards `hive-queue-agent-{secret,client-id}` into
containers, and no longer forwards HIVE_AGENT_OIDC_TOKEN_ENDPOINT; the
agent module that loaded them (nix/agent-modules/queue.nix) is gone, its
options refused with a removal message.
- The host reader (glue-queue-agent-credential.nix, swarm-bao-queue-agent),
its store role and policy unit (swarm-bao-queue-agent-policy), its PKI
leaf and the deploy.bao.queueAgent* / queue.agentCredentialDir options
are gone; the options are refused with a removal message.
- authelia mints no `hive-<h>-agent` client, and swarm-secret-publish no
longer writes swarm/hives/<h>/queue/agent.
- swarm-secret-client drops queue::agent_client_path / queue::Credential.
- HIVE_AGENT_NATS_URL is now gated on the agents' queue address alone.
The log store's authelia check stays for operators. swarm-nats-auth still
refuses a `-agent` client id; that refusal and `agentClientSuffix` are left
for a follow-up.
Refs #4459
Refs #4765
A set HYPERHIVE_CLAUDE_CODE_PATH whose build is gone (collected after a
bump while the container still holds the old facts) made the wrapper
run the container's own claude-code silently, which can be a different
version. It now prints one line naming the missing path.
Refs #4857
The three values that differ per host (deploy.hive-controller.dashboardPort,
claudeCodePackage and otel.extraResourceAttributes) no longer go into the
meta flake. hive-priv writes them into the container's
/etc/hyperhive-hive-facts with the hive name and domain, and the agent
reads them at boot:
- HIVE_DASHBOARD_PORT reaches every unit through the hive-facts generator;
the web UI still defaults to 7000 without it.
- `claude` on PATH is a wrapper that runs HYPERHIVE_CLAUDE_CODE_PATH's
claude when it is there, and the container's own claude-code otherwise.
The host's serve.json keeps gc-rooting the pinned build.
- OTEL_RESOURCE_ATTRIBUTES moves out of the units' Environment= into a
boot-time generator, which appends HYPERHIVE_OTEL_EXTRA_RESOURCE_ATTRIBUTES.
The agent options services.hyperhive.agent.claudeCodePath (now a removed
option) and otel.extraResourceAttributes go; only the meta render set them.
render_flake takes no HiveEnv any more, so the memory-cap render test and
render_hive_flake_at, which only existed to vary HiveEnv into the render,
go with it.
Refs #4857
The external export is a setting of the swarm collector, so it moves to
services.hyperhive.deploy.swarm-otel.upstream. Renamed:
- otel.endpoint -> upstream.endpoint
- otel.protocol -> upstream.protocol
- otel.headersCredential -> upstream.headersCredential
- otel.collector.upstreamHeaderName -> upstream.headerName
The unreleased otel.upstreamSignals is declared as upstream.signals.
Hosts keep working through the rename warnings. Eval test covers the old
paths reaching the new options. Docs and stale comments point at the
new paths.
hive-core's .gitconfig now resets credential.helper (globally and for the
forge URL) before adding hive-forge. git runs every matching helper, system
config first, so a host-level `oauth` helper blocked `nix flake update`'s
git ls-remote of agent-configs forever.
On deploy: the boot sweep's meta_lock completes and rebuilds run.
The dashboard vhost, the hive domain vhost and the dashboard's local
name move to hive-c0re/vhosts.nix; the matrix .well-known discovery and
the legacy /matrix/ redirect move to glue-matrix-hive-discovery.nix,
which adds them to the hive domain vhost. Both declare through
gateway.vhosts. hive-gateway/vhosts.nix keeps the catch-all only, and
the gateway no longer reads deploy.matrix or c0re.servedFrontend, nor
deploy.hive-controller.enable for its vhosts.
Part of #3742.
These three are per-host choices that hive-c0re reads and renders into
its agents, so they belong under the hive controller's deploy namespace
rather than swarm-wide:
- c0re.dashboardPort -> deploy.hive-controller.dashboardPort
- c0re.claudeCodePackage -> deploy.hive-controller.claudeCodePackage
(the claude-login and review-classifier containers on the same host
keep following it)
- otel.extraResourceAttributes -> deploy.hive-controller.otel.extraResourceAttributes
The old paths stay as mkRenamedOptionModule aliases, now in deploy.nix
with the namespace's other renames. github.enable and the collector port
stay swarm-wide.
Five host options whose values hive-c0re renders into every agent's
build move under services.hyperhive.swarm, so the swarm states each of
them once instead of every hive carrying its own copy:
c0re.dashboardPort -> swarm.dashboardPort
c0re.claudeCodePackage -> swarm.claudeCodePackage
github.enable -> swarm.github.enable
otel.collector.port -> swarm.hiveOtel.collectorPort
otel.extraResourceAttributes -> swarm.hiveOtel.extraResourceAttributes
Every old path is a mkRenamedOptionModule alias, so a host that sets one
keeps its value and gets an eval warning naming the new path. Types and
defaults are unchanged, so the rendered meta flake, serve.json and
hive-c0re's environment are the same as before on a host that sets
none of them.
The readers move with them: serve.json and its gc-root assertion, the
hive-c0re environment, the hive collector's listen address and bridge
port, the swarm collector's port-collision assertion, and the
claude-login and review-classifier containers' claude pin. The
swarm-services-switch fixture sets the swarm path and now also checks
that serve.json carries the pinned claude.
Part of #4857 (slice 2).
swarm-metrics reads the swarm's VictoriaMetrics from inside an agent
container: query, query-range, series, labels and label-values, each one
GET against the store's Prometheus read API through the gateway, printing
the store's JSON. It authenticates the way swarm-logs does, with the
agent's own queue secret read from bao under the agent's leaf, sent as
a swarm-agent bearer.
On the metrics store's host the read API's auth map gains an agent arm
ahead of the Grafana one. It routes to swarm-metrics-agent-auth, a
swarm-logs-auth instance logged in under the existing swarm-metrics-auth
leaf, whose bao grant now includes swarm/agents/+/queue read. The check is
rate-limited per address like the log store's
(deploy.victoriametrics.agentAuth{Rate,Burst,VerdictTtl}).
nix/agent-modules/metrics.nix installs the wrapped binary when the hive
forwards HIVE_AGENT_METRICS_URL (from swarm.victoriametrics.domain) and a
store address, the same gate as swarm-logs. Adds the base:swarm-metrics
skill and the CLI reference with its freshness check.
Fixes#5395
Delete nix/templates/ruth.nix, the ruth nixosConfiguration, module and
toplevel, the hive-c0re managerToplevel option, and the meta flake's
isManager switch with lifecycle::MANAGER_NAME. Every agent, ruth
included, now builds from nix/templates/agent.nix. The template's only
content beyond agent.nix was docs.enable = mkDefault true; docs.enable
is off by default for every agent and ruth's own agent.nix turns it on.
Refs #5377
Both are ignored with a warning through the same shim, now
nix/host-modules/hive-options-removed.nix.
- otel.metricIntervalMs: claude in every agent and hive-c0re's
container-resource exporter run at the 60s default. The agent-level
services.hyperhive.agent.otel.metricIntervalMs, set only by the meta
render, goes too (warning shim in nix/agent-modules/otel-removed.nix).
- otel.debug: services.hyperhive.agent.otel.debug stays, documented and
set in an agent's own config; the meta render no longer emits it.
Both options are now ignored with a warning (the swarm-peers-removed.nix
shape), so a host that still sets one keeps evaluating.
- operatorPronouns: the agents' system prompt names the pronouns as
she/her, the value the harness fell back to and the option's default.
The --operator-pronouns flag, HiveEnv field, meta-flake let binding
and HIVE_OPERATOR_PRONOUNS env var are gone.
- contextWindowTokens: the per-family defaults (haiku 200000, sonnet
1000000, opus 1000000) move into hive-agent's harness_state as a
table; the window the API reports after a turn still wins. The
--context-window-tokens flag, HiveEnv field and the rendered
HIVE_CONTEXT_WINDOW_TOKENS_<KEY> env vars are gone.
ruth is created from the swarm dashboard like any agent. An existing ruth container starts at boot through the boot reconcile, like every other agent. A definition of services.hyperhive.ruthless now fails evaluation with a removal message.
Drop the H0M3 tile hub and the core page. The dashboard is now the index;
kept state is its fifth tab. A pages menu in the chrome links flow, stats,
API docs and the swarm UI. The swarm apex URL comes from
services.hyperhive.swarm.domain via HIVE_SWARM_PUBLIC_URL and the new
swarm_public_url field of the state snapshot.
Agents are handed `http://hive-collector.<swarm domain>:<port>` as their
otel endpoint instead of `http://<bridge IP>:<port>`. Every hive running
its collector contributes the name to `gateway.localNames`, so its own
dnsmasq answers it with its bridge IP, the way the queue's name already
works. The rendered meta flake then carries no hive-specific address,
which a swarm-level render needs (#4857, operator ruling 100744: "b").
hive-c0re's own exporter keeps the bridge address: on the host the name
may resolve to loopback through `gateway.localHostsEntry`, where the
receiver does not listen.
The name sits under the swarm domain and starts with `hive`, a fragment
no hive name may contain, so no hive's default domain can take it.
The dashboard, its API, the swagger UI and the agent routes move to their
own vhost, `swarm.dashboardDomain` = `<hive>.hives.<swarm.domain>`, under
the swarm domain so authelia's session cookie reaches it. `/`, `/api/` and
`/api/docs/` ask authelia through `auth_request`, and authelia's
`operatorsOnly` rule for each hive's dashboard name lets only the admins
group in. The hive domain keeps matrix discovery and redirects every other
path to the new name.
The name rides as a SAN on the hive's own gateway leaf: the per-hive bao
role allows it, and hive-tls asks for it and checks coverage.
HTTP Basic auth is gone: the htpasswd writer and its test, the
`hivectl gateway` verbs and host-socket requests, the `gateway.auth`
options (now a removed-option error), the unauthorized page and the bcrypt
dependency. tmpfiles deletes a leftover gateway.htpasswd, which held
bcrypt hashes at 0644.
c0re hands out dashboard and agent URLs on the new name
(HYPERHIVE_DASHBOARD_DOMAIN), and the swarm controller's hive roster
carries each hive's dashboard name for the swarm UI's hive list.
Closes#3469
swarm-logs reads `swarm/agents/<agent>/queue` from the swarm secret
store with the agent's own store certificate (the read hive-agent makes
for its queue connection) and presents it as
`Bearer swarm-agent.<agent>.<secret>`, which the gateway's
swarm-logs-auth checks. On a 401 it reads the secret again and retries
once, so a secret re-minted between the read and the check does not
fail the query.
The OIDC mint against the hive's shared `hive-<h>-agent` client is gone
from swarm-logs, along with the unused `HIVE_AGENT_OIDC_CA_FILE` anchor.
logs.nix now gates on the store address instead of the queue's token
endpoint and wraps the binary with the paths queue-identity.nix gives
the harness; the host forwards the query URL wherever it forwards a
store identity.
The shared client is still delivered into containers; removing that is
Part of #4459.
Logs live at swarm level now (VictoriaLogs, read through Grafana
Explore). The hive dashboard's own journal viewer goes, with
everything that existed only to serve it:
- frontend: /logs.html, logs.js, logs.css, the H0M3 "Logs" tile and
the per-agent menu's "journal logs ->" link. The build-log list
rules BU1LDS used from logs.css move into builds.css.
- hive-c0re: GET /api/journal/{name} and GET /api/journal-host, and
priv_client::read_container_journal.
- hive-priv / hive-priv-sock: the ReadContainerJournal request, its
JournalQuery/JournalOutput wire types and the journalctl -M executor.
- nix: hive-c0re's systemd-journal supplementary group, whose only
reader was the journal-host handler.
- docs: the L0GS section, the API entry and the security table row.
Closes#5113Closes#3819
config-changes.md § Meta flake, hive-c0re nix comments and the meta.rs/exec.rs
doc comments still described the declared agent-<n> input as a forge-hosted
git+http repo; meta.rs renders git+file://<applied>.
forge.md said the meta flake fetches agent-configs over git+http through a
credential helper. The input is git+file://<applied> (meta.rs), and
hive-c0re's own git reads use forge::reader_token(). Fix the same claim in
the comments above the hive-c0re gitconfig and the credential helper. No
code change.
hive-c0re publishes this hive's status to the swarm queue as the OIDC
client `hive-<name>`. Its secret came from
`deploy.hive-controller.statusPublish.clientSecretFile`, which defaulted
to authelia's minted file only on a host running both authelia and the
queue. Every other hive had no secret and never published, so the
controller showed it `never_reported`.
Now `swarm-secret-publish`, beside authelia, also copies each hive's
`hive-<name>` secret to `swarm/hives/<hive>/oidc/client`. Its policy
already allows `swarm/hives/*`. hive-c0re reads that path under the
hive's own store leaf, which the existing `swarm/hives/<hive>/*` grant
covers, and holds the value in memory.
The shared queue client no longer remembers a failed first connect for
the life of the process. A failed attempt is retried with a backoff
from 5s, doubling to a cap of 5 minutes; the dashboard banner stays up
until an attempt succeeds. The two status publishers wait for the
client instead of giving up on the first `None`, so a secret published
after boot is picked up without a restart.
Removed: the `statusPublish.clientSecretFile` option (both spellings,
now removed options with a message), its same-host default, its
LoadCredential, the assertion tying it to the other two coordinates,
and `swarm_queue_client::QueueConfig::from_env`, whose only caller was
this read. Publishing is now on wherever the queue URL and token
endpoint are set and the hive holds a store leaf.
Refs #5015
The docs, option descriptions and comments that named the swarm root, the
swarm CA or the hive CA as an existing trust anchor now name the secret
store's pki root or the trust bundle that holds it:
- docs/swarm/README.md, secrets.md, bao.md
- deploy.bao.clientCaFile's and gateway.verifiedProxyTo's descriptions
- comments in hive-c0re/src/meta.rs, hive-agent/src/swarm_queue.rs,
swarm-logs/src/auth.rs, swarm-controller/src/vcs_metrics.rs,
hive-forge, swarm-authelia, swarm-ci-runner, glue-bao-tls, swarm-bao,
swarm-grafana, swarm-otel, otel, hive-c0re, lib/hive-ca-trust.nix,
hive-forge/Cargo.toml and the flake-update workflow
Nothing behaves differently: every edit is a nix, Rust or TOML comment, an
option description, or a test assertion message. The Rust edits change the
workspace source, which this PR already rebuilds for hivectl.
Refs #4588
The secret store's pki root issues every hive's gateway leaf and the
swarm's service names, so the root swarm-ca.service generated on the
host anchors nothing and its key is a secret outside the store.
- swarm-ca.nix is gone: swarm-ca.service, root.pem and root-key.pem,
and the swarm.ca.{autoConfigure,stateDir,validityDays} options. A
definition of any of them fails evaluation with a removal message
(swarm-ca-removed.nix), and a tmpfiles rule deletes /var/lib/swarm-ca
on every host. singleHostSwarm no longer sets a swarm.* option.
- hive-tls-ca drops the $root slot: trust-bundle.pem holds the store's
pki root and a hive CA's public ca.pem/ca-previous.pem only.
- hivectl peer-config no longer prints the scp line for the swarm root;
the store's pki root is the one step.
- The gateway's cert import no longer stands a hive leaf or a throwaway
in for a missing swarm-services leaf where it Requires= the issuing
unit: it fails, naming swarm-services-cert.service. The stand-in stays
where the gateway does not wait (no swarm name, or the store's UI
only, whose passthrough must start with the store sealed).
Comments and docs that named swarm-ca.nix, swarm.ca.* or the host root
now name the store's pki root.
Refs #4588
The CI runner was a hive deploy module: hive-ci.nix ran it beside the
forge, and hive-c0re registered it through the forge's admin API with
the `core` token, writing the registration token through hive-priv. It
could only run on the forge's host, and it kept an admin-scoped forge
token on a hive.
Now the runner is a swarm service:
- swarm-ci-runner.nix runs it in a `swarm-ci-runner` container on the
host that sets deploy.ci-runner.enable, reaching the forge by name.
It needs neither the forge nor a hive there.
- swarm-controller reads the forge's runner registration token with its
own admin token and writes it to swarm/services/ci-runner/
registration-token whenever it differs from what it last wrote. Its
grant on that path is create/update only.
- The runner's own leaf (CN swarm-ci-runner, role and policy of the same
name) reads that one path. swarm-bao-ci-runner.service fetches it into
the runner's EnvironmentFile and restarts the runner on a change.
- A pre-start step removes .runner when the daemon's journal since its
last start holds Forgejo's "unregistered runner" refusal (the daemon
exits 1 when its startup Declare gets it), or when .runner names
another forge address; upstream's pre-start step then registers again.
Removed from the hive side: hive-ci.nix and deploy.forgejo.ci.*,
forge/ci_runner.rs, PrivRequest::RegisterCiRunner and its handler and
ReadWritePaths entry, InfraContainer::Ci with hivectl's --ci and the
dashboard's hive-ci journal entry, HYPERHIVE_FORGE_CI_ENABLED, and
read:admin,write:admin from CORE_TOKEN_SCOPES: nothing else in hive-c0re
calls /api/v1/admin/*. The old ci options, under both swarm.forge.ci and
deploy.forgejo.ci, now fail evaluation naming deploy.ci-runner.
The forge's half of the old ci.enable, the actions/checkout mirror and
DEFAULT_ACTIONS_URL = self, is deploy.forgejo.actionsFromSelf.
Closes#4954
Rewrite comments and option descriptions under nix/ that narrate how the
code got here ("used to", "new name", "sat at the TOP", "no longer",
renamed/moved narration, attributions) to say what the code does now and
why. Comments and description strings only; no logic changes.
Files in open PR #4970's diff are left alone. Refs #3902
Every hive's homeserver loaded a per-hive `hyperhive` appservice
registration, and the swarm minted and delivered an as_token for it
through bao. No client presented that token: swarm-controller creates
every `@hive-<hive>` sender and every agent account with the swarm
appservice token (hive_sender.rs, agent_token.rs), and no Rust code read
the per-hive one.
Removed, with everything that existed only to serve it:
- hive-matrix.nix: the `hyperhive` registration, its activation-time
render, the host bind mount of /var/lib/hyperhive/matrix-appservice,
its LoadCredential entry, and the internal options
`deploy.matrix.appserviceTokenFile` / `appserviceRegistrationScript`.
tuwunel now loads only the swarm registration.
- glue-matrix-bao-token.nix and its `swarm-bao-matrix-token` unit.
- glue-bao-tls.nix: the matrix-token leaf and its defaults.
- swarm-bao.nix: the `swarm-matrix-token-<hive>` roles and policies
(`swarm-bao-matrix-token-policy`), and the options
`deploy.bao.matrixTokenClient{Cert,Key}File` and
`matrixTokenCommonNamePrefix`, now mkRemovedOptionModule.
- swarm-secret-publisher.nix: the per-hive token mint and its state dir.
- swarm.nix: the reserved `<matrixTokenCommonNamePrefix>-<hive>` CN.
- swarm-secret-client: `matrix::appservice_token_path`.
The swarm registration (swarm-matrix-ctl, swarm-controller) is untouched.
Comments and docs that pointed at the removed glue file now point at
glue-queue-agent-credential.nix, which has the same reader shape.
Refs #4428
hive-c0re logs in with the hive's matrix sender token and creates the
Space and rooms over swarm.matrix.apiUrl. On a hive that does not run
the homeserver that crosses the network, so the default is now
https://<gatewayHost>. hive-c0re already verifies against the hive trust
bundle (SSL_CERT_FILE: system CAs, swarm root and the store's services
root), which covers the gateway's leaf for that name.
Also drops the remaining loopback-default wording in hive-c0re's matrix
module and the openFirewall description, and pins the https default on a
hive host without the homeserver in module-eval-matrix-core.
- swarm.serviceDomains lists every swarm service name on every host. The
store's issuing role is built from it, so the store now admits a leaf
for grafana, metrics, otel, logs, the bao UI and the apex whichever host
runs the store. Each gateway's own leaf stays narrowed by
localServiceDomains.
- swarm.matrix.apiUrl defaults to http://<swarm.matrix.gatewayHost>
(null when gatewayHost is null) instead of loopback on the matrix host.
- The authelia vhost proxies /bridge/ to swarm-authelia-bridge with the
prefix stripped, and deploy.swarm-controller.authBridgeUrl defaults to
${swarm.authelia.url}/bridge on every host. swarm.authelia.bridgeUrl is
removed.
- swarm-authelia-bridge admits only swarm-controller's OIDC client on
every request (403 for any other active token), configured by
SWARM_AUTHELIA_BRIDGE_CONTROLLER_CLIENT_ID (renamed from
..._OPERATOR_READER_CLIENT_ID, which gated ListOperators alone).
- swarm.peerHives is removed; swarm-wireguard.nix filters this host's own
hive out of swarm.hives itself.
Closes#4933
Removes services.hyperhive.deploy.matrix.gui.enable and its
swarm.matrix.gui.enable alias; both are mkRemovedOptionModule stubs. A
host running the homeserver serves fluffychat at gatewayHost's vhost,
and the hive's /matrix/ redirect follows the same condition.
The swarm-controller builds the Matrix quick link from
swarm.matrix.gatewayHost, replacing hive-matrix.nix's per-host entry.
HIVE_MATRIX_PUBLIC_URL is set on every hive with a gatewayHost, so
`hivectl open matrix` resolves off the homeserver's host too.
Drops HIVE_MATRIX_GUI_ENABLED and the dashboard's matrix_gui_enabled
field; nothing in the frontend reads it.
Refs #4885