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.
A new update_meta node renders internal/meta's flake.nix with
hive-meta-flake, the renderer hive-c0re uses: hyperhive pinned to its
forge main, each custom agent a hive places pinned to its agent-configs
main, all over https, and the swarm-wide values from
SWARM_CONTROLLER_META_FLAKE (set by swarm-controller.nix from
services.hyperhive.swarm.*). The swarm builder locks it, and the
controller commits flake.nix and flake.lock in one commit and gives
every hive's forge account read on the repo. A render equal to the
committed flake.nix sends no lock and commits nothing.
It runs at start, when hyperhive's main moves, before the deploy of a
merged config PR and before the first deploy of a new agent; those
deploys now wait for it. agent_web_port moves into hive-meta-flake so
both callers compute the same port; hive-c0re re-exports it.
On deploy: internal/meta appears on the forge and follows every merge.
No hive builds from it yet.
Refs #4857
no behaviour change: a pure move of items and tests into new modules, plus
visibility edits (pub(crate)) and path updates in sibling modules that named
crate-root items. same routes, same OpenAPI, 561 tests before and after.
why: #5470, new features stop landing in one 6.4k-line file by default.
files outside swarm-controller/src: docs/agent-lifecycle/agent-roster.md,
swarm-ui JobsPage.tsx and AgentsPage.tsx, nix/host-modules/swarm-controller.nix
and swarm-grafana.nix hold comments that named main.rs for items that moved.
