add external gitlab accounts: stored in bao, linked per agent, allowed in squid, usable with glab

README.md

@@ -90,9 +90,10 @@ box it gets:
   [subagent](docs/tools/subagent.md)
 - **forge** — its own Forgejo account, the `hive-forge` CLI, git
   credentials, and notifications turned into todos. Optional linked
-  accounts on other forges, and GitHub (`gh` + push) via
+  accounts on other forges, GitLab (`glab` + push), and GitHub (`gh` + push) via
   `services.hyperhive.agent.github.enable`. →
-  [forge](docs/integrations/forge.md) · [github](docs/integrations/github.md)
+  [forge](docs/integrations/forge.md) · [gitlab](docs/integrations/gitlab.md) ·
+  [github](docs/integrations/github.md)
 - **matrix** — its own account(s) on the swarm homeserver, as MCP tools. →
   [matrix](docs/tools/matrix.md)
 - **knowledge** — the swarm's shared `internal/knowledge` repo, read-only