The agent terminal page swaps the page's favicon for the agent's icon while it is mounted, so tabs of different agents tell apart. A subagent terminal shows its agent's icon. An agent with no icon, or an unreachable controller, keeps the hyperhive mark; leaving the page restores the page's own icon.
A replay consumer now has a 5s idle heartbeat, and the row stream ends at
the first consumer error instead of skipping it. When the server drops the
consumer, as on a restart, two missed heartbeats end the SSE response and
the browser reconnects with Last-Event-ID. Before, the response stayed
open and delivered nothing.
A Last-Event-ID above the stream's newest sequence now replays as a fresh
reader. The server accepts a start past the end and delivers nothing
until the stream reaches it, so a stale id stalled the replay.
swarm-controller's stream tests run against a real nats-server on
loopback (`test_nats`, binary from HIVE_NATS_SERVER, exported by
checks.nix and devshell.nix). They cover: ensuring the stream twice, an
existing stream with other limits being opened as it is, the replay
arriving before live rows, a reconnect getting every later row exactly
once, and a dropped consumer ending the row stream.
The limits test now compares against the subagent stream's own config.
Two comments that described the agent's terminal route as live-only are
corrected.
swarm-controller now creates `term-main-<agent>` for every live agent, in
the same one-minute pass and with the same config style as
`term-sub-<agent>` (#4897): subjects `$SWARM.term.<agent>` only, max_age
24h, max_bytes 64 MiB, discard Old, max_message_size from the queue's
max_payload. An existing stream is opened as it is. The agent keeps its
plain publish on `$SWARM.term.<agent>` and gets no JetStream subject.
`GET /api/agents/{name}/term/stream` creates an ephemeral push consumer on
that stream starting 100 rows back, so a swarm-ui terminal opens with
recent history and then follows new rows, in order, from one
subscription. Each SSE event carries the row's stream sequence as its id,
and a reconnect's Last-Event-ID resumes after it. Without the stream the
route falls back to the live core subscription it used before.
The stream is `term-main-<agent>`, not `term-<agent>`: an agent may be
named `sub-x`, whose `term-<agent>` would be agent `x`'s subagent stream.
Its one literal subject cannot match `$SWARM.term.<agent>.sub.>`, which
needs more tokens, so the two streams never overlap.
The reader gains `$JS.API.CONSUMER.CREATE.*.*.$SWARM.term.*`, the
extended create form whose last tokens are the consumer's filter. Checked
against nats-server 2.14.4, the trailing `*` also admits a literal `*` or
`>` filter, so a consumer under it reaches any terminal row, main or
subagent; those are rows the reader already subscribes to and reads with
`STREAM.MSG.GET.*`.
Closes#4826
swarm-controller re-issues an agent's store leaf at half its validity, but
the running container kept presenting the copy its hive delivered at
start, so a re-issued leaf reached the agent only on its next restart.
hive-agent-bao-identity now seeds a live copy of the pair in its own
runtime directory from the delivered credentials, and re-runs every 10
minutes: it logs in with the live leaf, reads its own
swarm/agents/<agent>/bao-mtls (a read render_agent already grants), and
when the leaf changed, logs in with the new pair and swaps it in only if
the store accepts it.
Every unit in the container that logs in to the store presents the live
pair: hive-agent (queue-identity.nix), hive-matrix-daemon,
hive-subagent-daemon, hive-agent-forge-token, hive-agent-forge-accounts
and hive-agent-github-token. They keep loading the server CA as a
credential. The long-running daemons are ordered after the refresher so
the live pair exists when they start.
It renews only while the held leaf is still valid: the login that reads
the new leaf is made with the current one.
Refs #5017
The turn-end /compact (operator button or the agent's `compact` tool) dropped
the compaction error with `let _ =`, emitted no note, and returned
`Ok(true)`, so the turn was recorded `result_kind = "compacted"` although
nothing compacted. The idle path already printed `/compact failed: …`.
Both paths now go through one `report_compact` helper that emits the done /
failed note; the turn-end path returns whether the compact succeeded.
Both proxy paths copied upstream response headers with HeaderMap::insert,
which replaces earlier values of the same name, so an upstream sending two
Set-Cookie (or Link, Vary, ...) headers reached the browser with only the
last one. Use append in both loops. Tests cover the http and unix: paths.
hive-claude 0.1.4 (hive-claude #28) sends the idle watchdog's signal as
SIGINT to claude's process group instead of SIGKILL. It then waits for
claude to exit, with no SIGKILL fallback. claude stops the commands its
Bash tool started when it shuts down on SIGINT, and a SIGKILL left them
running. This is the last SIGKILL of a claude process from #4999.
hive-agent's `idle_timeout` -> `Error::IdleTimeout` -> `TurnError::ApiStall`
path is unchanged. The difference is that the error now arrives only
once claude has exited. A claude that ignores the SIGINT keeps the turn
open until it is killed by hand or the unit stops.
The Cargo.lock change is only hive-claude's version and checksum. A plain
`cargo update -p hive-claude --precise 0.1.4` also moved seven crates'
Windows-only `windows-sys` edges from 0.61.2 to 0.52.0, unrelated to this
bump. The minimal lock passes `--locked`.
The turn-loop and web-UI docs, and hive-agent's watchdog docs and stall
note, now say SIGINT instead of "killed". That includes the ACP spots
that the previous commit's `Drop` change made stale.
claude's Bash tool starts every command in a new session, so a signal to
claude's process group never reaches it. claude stops those commands
itself when SIGINT makes it shut down. A SIGKILL leaves them running,
re-parented to init. Per the ruling on #4999, every stop is SIGINT and
nothing escalates.
- Subagent `interrupt` always sends SIGINT. The `force` argument is gone
from the MCP tool and from `session::interrupt`. A caller that still
sends `force: true` gets SIGINT; the argument is ignored.
- `interrupt` used to free the session name before it signalled, so a
`continue` could start a second claude on the session while the first
was still exiting. The `running` map now holds a three-state `Slot`
(starting, running, stopping). An interrupted claude turn is
`Stopping` until the turn task's own `finish_turn` clears it. `status`
says "stopping", and `start`/`continue` on that name are refused.
`interrupt` still returns at once. The ACP arm is unchanged: its name
is freed when `session/cancel` is sent.
- ACP `Connection` drop sends its process group SIGINT, not SIGKILL, and
the spawn no longer sets tokio's `kill_on_drop`, which SIGKILLed the
leader after the `Drop` body. The test fixture's background grandchild
resets SIGINT to default, since `&` starts it ignored.
Tests: a fake claude that records SIGINT, interrupted, fails with
`cancel(true)` (the old `force: true` path). An interrupted fake claude
that keeps running keeps its name claimed and `continue` is refused,
which fails when the slot is freed before the signal. A fake ACP agent
that records SIGINT, dropped, fails with SIGKILL in `Drop`, and also with
SIGINT in `Drop` but `kill_on_drop(true)` left in place.
Not changed: hive-claude's idle watchdog (still SIGKILL, separate
hive-claude change), the units' `KillSignal`, `machinectl kill`, and the
login helper.
hive-claude 0.1.3 spawns claude as the leader of its own process group,
and its `Cancel::cancel` and idle watchdog signal that group instead of
claude's pid alone. Commands claude started (a `nix build`, a test run)
used to survive a subagent `interrupt` and keep running.
Bump hive-claude to 0.1.3. The subagent `interrupt` call site needs no
code change: `Cancel::cancel(force)` kept its signature.
The harness's `/cancel` and `/logout` did not go through hive-claude:
they ran `kill -INT <pid>` on the claude child they found in /proc. They
now SIGINT the group that child leads, through `libc::kill`. A `claude`
child that leads no group (the `claude plugin` calls) shares the
harness's group and is still signalled alone.
Tests: an interrupted subagent's grandchild dies, for both SIGINT and
`force`, and fails on hive-claude 0.1.2; a harness cancel stops a
turn's grandchild, and fails when only the pid is signalled.
A build_logs row is opened with finished_at NULL and closed only by the
process that runs the build. If hive-c0re stopped in between, the row stayed
open for good: the dashboard listed it with no status, its log stream never
sent `done`, and the retention sweep, which skips open rows, never deleted it.
Coordinator::open now closes every open row as `fail` and appends a line
saying hive-c0re stopped. It runs before this process starts any build, and
only there: BuildLogs::open itself leaves rows alone so a second opener can't
close another process's live rows.
subagent.md no longer says the web UI's model picker offers
availableModels, and the comments in Dropdown, ComponentsPage and
WantedMenu no longer point at the deleted per-agent Picker.
mara on #5034: "effort shares /models fate". The per-agent web UI no
longer sets effort: the `/effort` slash command, the effort picker,
`POST /api/effort`, `Bus::set_effort`, the `hyperhive-effort` writer,
`EFFORT_LEVELS`/`is_valid_effort` and the ACP effort-list payload are
gone, and `lib/modelEffort.ts` with them. The effort chip is
display-only and shows its source (`effort_source` in `/api/state`);
on ACP it stays hidden while the session offers no effort level.
The read side is unchanged: with no swarm value an agent runs an
existing `hyperhive-effort` file, else its agent.nix effort, else
medium. Existing files are not touched.
Refs #5034
The per-agent web UI no longer sets the model: the `/model` slash
command, the model picker, `POST /api/model`, `Bus::set_model` and the
`hyperhive-model` writer are gone. The model chip is display-only and
shows where the model comes from (`model_source` in `/api/state`). The
model is set on the swarm (swarm UI agents page, `swarmctl agent
inference set`).
The read side is unchanged: with no swarm value an agent runs its
agent.nix model, else an existing `hyperhive-model` file, else haiku.
Existing files are not touched.
With the picker gone, its model list goes too: `available_models` in
`/api/state`, the ACP model-list filter, and the harness's global
`HIVE_AVAILABLE_MODELS`. The subagent daemon keeps its own
`HIVE_AVAILABLE_MODELS` from mcp.nix, and the `availableModels`
assertion stays.
`/effort` (command, picker, route, file) is unchanged.
Refs #5034
post_mark_todos_done dropped every dial failure and Response::Err and
answered 200 {"acked":0}, so the todos panel showed "marked done" and
cleared its checkboxes while the todos stayed. Any failing id now fails
the request with a 500 naming how many ids failed; the panel already
shows non-OK bodies as "failed: ...".
Add docs/swarm/review-classifier.md, the high-level architecture of the
planned PR review classifier pipeline, written as the full target shape
under a "planned, not implemented yet" banner. Link it from docs/README.md
and the docs/swarm/README.md piece list.
The page reflects the epic description and the operator's answers in the
epic thread; points still open are listed in its "Still open" section.
The banner names the epic by title rather than by number because the
tracker-tag lint rejects issue references in tracked files.
The agent detail panel shows the model and effort an agent runs on with
where each comes from, plus the swarm's subagent model list. An edit
dialog sets the swarm value (PUT) and a clear action removes it (DELETE).
Reads the configured/effective view, and shows the stored values alone
until an agent has reported what it runs on.
`GET /api/agents/{name}/inference` answered `"configured": {}` both for
an agent with no key in `agent-inference` and for a stored value with no
fields, so a reader could not tell "the swarm sets nothing" from "a
setting with every field unset". It now reads the key as
`Option<AgentInference>`: an absent or deleted key is `null`, a stored
`{}` stays `{}`. The shared `schedules::read` helper is unchanged.
`swarmctl agent inference get` prints "no swarm setting; the agent runs
on its own model and effort" for `null`; `set` merges into an empty
value in that case, as before.
The agent itself still treats no key and `{}` the same.
Refs #5034
`check_model` accepted a value like `--dangerously-skip-permissions`,
and the stored model ends up in the agent's `claude` argv. A PUT whose
`model`, or any `subagent_models` entry (same validator), starts with
`-` is now a 400 with the same problem+json shape as the other model
checks. A dash inside a name (`claude-opus-4-8`) is still accepted.
Raised by argus on #5084.
Refs #5034
The header on `$SWARM.agent-state.<agent>` went out only when a bus event
changed it, and the core subject keeps nothing for a late subscriber. An
idle agent therefore said nothing to a reader that attached after its
last change: swarm-controller after a restart showed `effective: null`
for that agent until its next turn, which can be hours.
The publish loop now also wakes every 60 s and re-sends the current
header through the same `publish` path (clearing the dedup state first).
Transitions still go out as they happen. Same subject, same grant.
An agent whose queue connection is down now logs `swarm agent state:
publish skipped` once a minute even while idle, so the
`hh-swarm-agent-state-publish-skipped` alert also fires for idle
disconnected agents, not only busy ones.
Refs #5034
Each agent now reports the model and effort it runs on, and where each
comes from (`swarm`, `agent_nix`, `local_file` or `default`), in its
turn-state header on `$SWARM.agent-state.<agent>`: `effort`,
`model_source` and `effort_source` join `model`. The shared
`swarm_queue_client::agent_inference::{Effective, Source}` types spell
those fields for both ends.
The Bus keeps a source next to the model and effort. `Bus::new` takes it
from the local fallback chain (`harness_state::local_model` /
`local_effort`, which now return the source with the value), a `/model`
or `/effort` pick sets `local_file`, and the swarm poller sets `swarm`
or, on a clear, the local chain's source. A swarm value equal to the one
the agent already runs is now applied once, so the source moves to
`swarm` and the header is republished; before, `next()` skipped it as
unchanged.
swarm-controller subscribes to every agent's header with the reader
grant it already holds for the state relay, and keeps the latest
inference fields per agent in memory (`inference::Reported`).
`GET /api/agents/{name}/inference` now answers
`{configured, effective}`, `effective` being `null` until the agent's
first header with these fields since the controller started.
`swarmctl agent inference get` prints both; `set` reads `configured`.
Refs #5034
sso.md still described a host-side copy unit and an operator-placed file
for a forge elsewhere; secrets.md's client-secret row still named
sso.clientSecretFile as the operator's route. The clientSecretFile
example now shows the path swarm-bao-forge-oidc writes.
Refs #5015
The forge's login source read its OIDC client secret from a file that
`hive-forge-oidc-secret` copied out of authelia's container tree. That
unit only existed where authelia ran on the forge's host (`ssoLocal`),
so a forge anywhere else needed the file placed by hand.
The publisher on authelia's host now carries the forge's client secret
to `secret/swarm/services/<forge client id>/oidc/client`, like every
other swarm service's. On the forge's host `swarm-bao-forge-oidc`, a copy
of `swarm-bao-matrix-oidc`, reads it under the forge publisher's leaf
(the forge host's one store identity, whose policy gains read on that
one path) and writes the file `forgejo-sso-source` reads, re-running the
login source when the value changes. It retries on the shared
store-retry shape while the store is down or the secret is not yet
published.
`hive-forge-oidc-secret` is removed, `clientSecretFile` defaults to the
in-container path wherever the forge runs, and the `ssoLocal` gate on
the login source's resolver ordering goes with it: the login source
fetches the issuer's discovery document on every forge host.
Refs #5015
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.
knowledge.md: swarm-controller's site-admin account also pushes; the
clone no longer carries a token, the .git overlay hides history.
forge.md: the dashboard link follows swarm.forge.publicUrl; the poller's
HIVE_FORGE_URL gate is only unmet outside a nix-built hive.
matrix.md: the homeserver is the swarm's, not the hive's.
A `start` or `continue` naming a `model` now reads this agent's key in the
`agent-inference` bucket and, when `subagent_models` is set, checks the
model against that list instead of HIVE_AVAILABLE_MODELS (agent.nix
`availableModels`). An unset field, an absent key or an absent bucket
keeps today's check. A read that fails or takes over 2 s falls back to
HIVE_AVAILABLE_MODELS with a warning, so a subagent start never waits on
the queue. A call without a `model` is not checked and does not read.
The read uses the agent's own queue credential through swarm_term's
connect, and the one direct-get subject the agent is granted in that
bucket. The refusal names the list and that it came from the swarm.
Refs #5034 (S5)
The previous commit dropped `hive-otel-client-secret` and the collector's
`requires`/`after` on it for every hive. Only the store fetch restarts the
collector when its file lands; an operator-named `otel.clientSecretFile`
has nothing doing that, so a late file failed `LoadCredential` straight into
the collector's start limit with no way back.
The wait unit and the ordering are back for `senderAuth && !fetches`, and
absent only where `swarm-bao-hive-otel-oidc` delivers the file. The
module-eval case for a hand-named secret now also pins the wait unit and
the collector's `requires`/`after` on it, on both of its fixtures.
Refs #5015
The hive collector's `oauth2client` secret came from a `clientSecretFile`
defaulting to authelia's own minted file on the IdP's host, with a
`hive-otel-client-secret` oneshot that only waited up to 120s for that
file to exist; any other hive had to copy the file across by hand.
`swarm-bao-hive-otel-oidc` now logs in with the hive's leaf
(`deploy.bao.clientCertFile`), reads `swarm/hives/<hive>/oidc/client`
(written by the publisher, granted by the hive leaf's
`swarm/hives/<hive>/*` read), writes it root 0400 when it differs, and
restarts the collector when the file is newer than its last start.
Retries every 30s for 24h (`lib/store-retry.nix`), like the matrix and
forge fetches. `clientSecretFile` defaults to that file wherever the hive
leaf is set and stays as an override; an overridden file renders no fetch.
otelcol-contrib 0.151.0's oauth2client re-reads `client_secret_file` on
every token fetch, but the path is `LoadCredential`'s start-time copy, so a
changed secret still needs a restart. `lib/refresh-consumer.nix` gains
`refresh_unit` for a host unit; `refresh_consumer` now calls it with
`--machine`.
nats-authelia's "consumer of the host client-secret dir" case pointed at
the collector's old default; it now reads the publisher's path unit.
Refs #5015
A claude agent with useApiKey gets ANTHROPIC_API_KEY through
backendEnvironmentFile, but only the harness unit loaded that file;
hive-subagent-daemon loaded it for ACP agents alone. The daemon's nested
claude inherits the daemon's environment (hive-claude adds to it, never
clears it), and an api-key agent has no OAuth session in ~/.claude, so
its claude subagents started with no credentials.
hive-subagent-daemon now loads backendEnvironmentFile when the agent is
ACP (unchanged) or has useApiKey set. Module-eval covers the api-key
claude arm; the existing claude arm (file set, useApiKey unset) still
asserts no EnvironmentFile.
Closes#5088
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 ACP agent was spawned with only `kill_on_drop`, which SIGKILLs the
agent's own pid. Commands the agent had started (a `nix build`, a test
run) were reparented and kept running after the agent was killed: when a
subagent run ends after `interrupt`, when an agent ignores
`session/cancel` past the grace, and when the harness drops the runtime.
The agent now leads its own process group (`process_group(0)`), and
dropping its `Connection` SIGKILLs that group. The soft path is unchanged:
`interrupt` / `Canceller::cancel` still sends `session/cancel`.
Refs #4999. The claude half needs hive-claude 0.1.3, which is not on
crates.io yet.
swarm-controller keeps each agent's inference settings in a new
`agent-inference` KV bucket, one key per agent, and is its only writer
(`GET`/`PUT`/`DELETE /api/agents/{name}/inference`; `swarmctl agent
inference get|set|clear`). Every field is optional. Each agent reads its
own key every 10 s through a direct-get grant on that key alone, and a
set `model` or `effort` replaces the Bus value, so the next turn runs on
it and the badge follows.
The swarm value is applied without persisting it: `Bus::set_model` and
`set_effort` are split into a persisting setter and a non-persisting
`apply_*`, and the poller uses the latter. Otherwise the swarm value
would overwrite `hyperhive-model`/`hyperhive-effort`, and clearing it, or
a restart, would no longer find the agent's own value. An unset field
changes nothing; a field cleared after being applied goes back to the
local value (`harness_state::local_model`/`local_effort`, the same
resolution `Bus::new` uses), read again at the clear.
`subagent_models` is validated, stored and shown by `get`; no agent
applies it yet.
Refs #5034
advance_applied_main refused every rev that does not descend from
applied/main, including an ancestor of it. Ancestors arrive in normal
operation: swarm-controller queues each merge's TriggerDeploy as an
independent node with no resource or edge between them and spawns each
runnable node on its own task, so two merges of one agent can publish in
either order; the meta-update cascade fast-forwards applied/main to the
forge's main on its own; and the webhook handler does not dedup a
redelivered merge event. Since a refusal now logs at ERROR and fires the
`hh-config-rev-refused` alert, each of those would page as a refusal.
An ancestor is now RevAdvance::Superseded, logged at info, nothing queued.
Only a rev that has diverged (neither descendant nor ancestor) is refused.
Refs #4851
A deploy request whose rev hive-c0re refuses (fetch failed, or the rev
does not descend from applied/main) no longer tries to comment on the PR
that merged it. Off the forge host that attempt always failed with "forge
core token absent". The refusal now logs at ERROR, message unchanged, and
the new `hh-config-rev-refused` Grafana rule fires on it.
Deleted with the posting: actions::post_rev_deploy_failure_to_pr, the
whole forge/pr_comment.rs (config_repo, merged_pr_for_commit,
post_pr_comment), and ReaderToken::value, whose only caller was
merged_pr_for_commit.
Refs #4851
The issue-comments endpoint takes no page or limit, so `comments
--since` cut its window client-side from a whole-list response. The
leftover over-fetch-by-one request (`.page_size(limit + 1)`) was a
no-op and the `--limit` clamp to MAX_LIMIT (49) guarded a truncation
check that no longer needs one.
Drop both: `--since T --limit N` now returns N comments. `comments
--json` still emits `since_limit_clamped`, always `false`. `timeline`
is untouched; its endpoint pages and its clamp stays.
The forge's issue-comments endpoint takes no page or limit and always
returns the whole thread. #5055 wrapped view's fetch in all_pages, which
never saw a short page on a thread of 50+ comments and fetched the same
list 50 times: `issue view 3782` printed 3000 comments instead of 60.
`comments --limit K` sent K as a page size the forge ignored, so it
returned the whole thread.
view and pr status's last_comment now send one request. comments fetches
the thread once and cuts the --limit / --tail window client-side; the
X-Total-Count probe and the computed-page tail walk are gone, and the
count of comments outside the window is the length of the list.
--since is unchanged.
tests/comments_no_paging.rs runs the binary against a loopback mock
forge whose comments route ignores page and limit, as Forgejo's does.
priv_client::list_containers now waits at most 30s (LIST_WAIT) for
hive-priv's `nixos-container list`, via the existing `within` helper. Its
periodic callers (crash_watch, agent_sockets, swarm_agent_status, wanted,
mcp_sockets, swarm_status via container_view) already treat an Err as a
skipped cycle, so a hung listing no longer stops their loops for good.
lifecycle::is_running / unit_state run `systemctl is-active` with
kill_on_drop and a 10s timeout (IS_ACTIVE_TIMEOUT); a timeout warns and
reads as not-running / UnitState::Other, the same as a systemctl that
could not be spawned. The new lifecycle::running_state returns None for
that case, and crash_watch keeps the agent's previous observation on None
so a hung systemctl is neither reported as a crash nor as a recovery.
`call` itself and every mutating op (start/stop/destroy/send-snapshot/
daemon-reload) stay unbounded.
Closes#5061
The forge clamps page_size to 50. branches, pr reviews, the review
bodies merged into `comments <pr>`, and view's comment list each sent
one request, so anything past the first page was dropped silently.
labels::repo_labels did loop, but asked for 100/page and stopped on
`len < 100`, so a clamped full page of 50 ended the walk.
Add verbs::all_pages: requests 50/page until a short page, capped at
50 pages with a stderr warning when the cap is hit. Use it in all of
the above; repo-labels now calls labels::repo_labels instead of its
own copy of the loop.
list --json now prints the same "N of M shown" stderr trailer as the
pretty output; its paging and stdout shape are unchanged.
Closes#5051