swarm-controller: own the swarm-wide forge objects; hive-c0re stops creating them

The orgs agent-configs/internal/agents (plus mirror owners), the
operators team in agents and agent-configs, the pull-mirrors,
internal/docs, internal/knowledge (public, README-seeded) and the
agent-configs org avatar are one set per forge. hive-c0re ensured them in
its boot sweep, as the core admin, and only on the hive co-located with
the forge container.

swarm-controller now reconciles them at start and every 5 minutes
(forge/objects.rs: observe -> pure plan -> apply). A failed object logs
a warn line plus a pass summary and is retried next tick. create_repo
ensures the agent-configs org and its operators team first, so a config
repo's merge gate never depends on the periodic pass having run.

hive-c0re drops ensure_org, SEEDED_ORGS, ensure_mirrors/ensure_mirror_repo,
ensure_operators_team, ensure_shared_docs_repo, ensure_knowledge_repo/
set_repo_public, seed_readme, ensure_config_org_avatar and the one-shot
knowledge::remove_webhook cleanup, with their now-unused helpers.

nix: the mirror list moves from the hive-c0re unit
(HYPERHIVE_FORGE_MIRRORS) to the swarm-controller unit
(SWARM_CONTROLLER_FORGE_MIRRORS), with an eval warning when mirrors are
declared on a host that runs no controller. c0re.orgAvatarPng is renamed
to deploy.swarm-controller.configOrgAvatarPng.

Refs #3782

nix/host-modules/hive-c0re/environment.nix

@@ -47,15 +47,6 @@ in
   # prompts). `hive_sh4re::assets::*` reads paths underneath.
   # `forge/users.rs` reads the core avatar PNG from here on startup.
   HIVE_ASSETS_DIR = "${cfg.assets}/share/hyperhive";
-  # `agent-configs` org avatar PNG — independently overridable via
-  # `orgAvatarPng` without replacing the whole `assets` package.
-  # Falls back to the bundled PNG under HIVE_ASSETS_DIR when unset.
-  # Read by `forge::users::config_org_avatar_png_path`.
-  HIVE_ORG_AVATAR_PNG =
-    if cfg.orgAvatarPng != null then
-      "${cfg.orgAvatarPng}"
-    else
-      "${cfg.assets}/share/hyperhive/branding/agent-configs.png";
   # Whether this hive runs ruthless — no root/manager agent at all
   # (`auto_update::ensure_root_agent`). Default false = root
   # auto-managed; true makes the sweep a no-op.

nix/host-modules/hive-c0re/options.nix

@@ -55,19 +55,6 @@
         rust derivation.
       '';
     };
-    orgAvatarPng = lib.mkOption {
-      type = lib.types.nullOr lib.types.path;
-      default = null;
-      description = ''
-        PNG uploaded once as the `agent-configs` Forgejo org's avatar
-        (`forge::users::ensure_config_org_avatar`, one-shot,
-        marker-guarded — delete `forge/agent-configs-avatar-set` under
-        the state dir to force a re-upload after changing this).
-        Defaults (`null`) to the bundled `agent-configs.png` from
-        `assets`. Set this to override just the org avatar without
-        replacing the whole `assets` package.
-      '';
-    };
     xdgIcons = lib.mkOption {
       type = lib.types.package;
       defaultText = lib.literalExpression "hyperhive.packages.\${system}.xdg-icons";

nix/host-modules/hive-forge/default.nix

@@ -633,9 +633,9 @@ in
         '';
       }
       {
-        # Keep mirror orgs out of the hive-c0re-managed namespaces
+        # Keep mirror orgs out of the hyperhive-managed namespaces
         # (config/shared/agents/core) so the seed never races / collides
-        # with hive-c0re's own startup provisioning of those orgs.
+        # with the provisioning of those orgs.
         assertion = lib.all (
           m:
           !(lib.elem (builtins.elemAt (lib.splitString "/" m.dest) 0) [
@@ -647,8 +647,8 @@ in
         ) effectiveMirrors;
         message = ''
           services.hyperhive.deploy.forgejo.mirrors[].dest must not place a mirror
-          in a hive-c0re-managed org (config / shared / agents / core) —
-          those are provisioned by hive-c0re and a mirror there would
+          in a hyperhive-managed org (config / shared / agents / core) —
+          those are provisioned by hyperhive itself and a mirror there would
           collide. Use a dedicated org (e.g. "actions/checkout").
         '';
       }
@@ -1358,12 +1358,22 @@ in
       ];
     };
 
-    # Forward the declared pull-mirrors to hive-c0re, which seeds them in
-    # its forge provisioning sweep (`forge.rs::ensure_mirrors`, alongside
-    # the SEEDED_ORGS ensure). c0re already holds the core admin token and
-    # ensures the orgs there, so the seeding lives in one place rather than
-    # a parallel host-side unit. JSON-encoded list of { upstream, dest };
-    # `[]` when nothing to seed (c0re no-ops).
-    systemd.services.hive-c0re.environment.HYPERHIVE_FORGE_MIRRORS = builtins.toJSON effectiveMirrors;
+    # Forward the declared pull-mirrors to the swarm-controller, which seeds
+    # them in its swarm-wide forge-objects pass
+    # (`swarm-controller/src/forge/objects.rs`), beside the orgs they live in.
+    # JSON-encoded list of { upstream, dest }; `[]` when nothing to seed.
+    #
+    # ⚠️ This host's `mirrors` reach a controller on THIS host only. A
+    # controller elsewhere reads its own host's list, so mirrors declared
+    # here would never be seeded; the warning below says so at eval rather
+    # than leaving it to be noticed as a missing repo.
+    systemd.services.swarm-controller.environment.SWARM_CONTROLLER_FORGE_MIRRORS =
+      lib.mkIf deployCfg.swarm-controller.enable (builtins.toJSON effectiveMirrors);
+    warnings = lib.optional (effectiveMirrors != [ ] && !deployCfg.swarm-controller.enable) ''
+      services.hyperhive.deploy.forgejo.mirrors (or the actions/checkout mirror
+      deploy.forgejo.ci.enable adds) is set on a host that does not run the
+      swarm-controller. The controller seeds mirrors from its own host's list,
+      so these are not seeded: declare them on the swarm-controller's host.
+    '';
   };
 }

nix/host-modules/swarm-controller.nix

@@ -190,6 +190,13 @@ let
     # Same `%d` shape as the queue secret above — root reads the plaintext
     # at unit start, the daemon's own user sees a 0400 copy.
     SWARM_CONTROLLER_FORGE_TOKEN_FILE = "%d/forge-token";
+    # `agent-configs` org avatar for the forge-objects pass
+    # (`forge/objects.rs`). Only meaningful with forge access, hence here.
+    SWARM_CONTROLLER_CONFIG_ORG_AVATAR_PNG =
+      if deployCfg.swarm-controller.configOrgAvatarPng != null then
+        "${deployCfg.swarm-controller.configOrgAvatarPng}"
+      else
+        "${config.services.hyperhive.c0re.assets}/share/hyperhive/branding/agent-configs.png";
   };
 
   # How the forge must address this controller to deliver a swarm-wide
@@ -311,6 +318,12 @@ in
       hostUnit = true;
       enable = deployCfg.swarm-controller.enable;
     })
+    # The avatar moved with the forge-objects pass that uploads it: from
+    # hive-c0re's boot sweep to this daemon.
+    (lib.mkRenamedOptionModule
+      [ "services" "hyperhive" "c0re" "orgAvatarPng" ]
+      [ "services" "hyperhive" "deploy" "swarm-controller" "configOrgAvatarPng" ]
+    )
   ];
 
   options.services.hyperhive.swarm.controller = {
@@ -498,6 +511,20 @@ in
       '';
     };
 
+    configOrgAvatarPng = lib.mkOption {
+      type = lib.types.nullOr lib.types.path;
+      default = null;
+      description = ''
+        PNG uploaded once as the `agent-configs` Forgejo org's avatar by
+        the controller's swarm-wide forge-objects pass (one-shot,
+        marker-guarded — delete `forge-config-org-avatar-set` under the
+        controller's state directory to force a re-upload after changing
+        this). Defaults (`null`) to the bundled `agent-configs.png` from
+        {option}`services.hyperhive.c0re.assets`. Set this to override just
+        the org avatar without replacing the whole `assets` package.
+      '';
+    };
+
     forgeTokenFile = lib.mkOption {
       type = lib.types.nullOr lib.types.str;
       # Forge's own delivery path when the forge runs here, since nothing