[TheGreatAxios]

Summary

• Deletes packages/agent-directory — its workbench-specific hub mount
  (/api/workflow-agent-directory/*, /api/workflow-chat/participants/*)
  was already gone from apps/hub/src/server.ts (last consumer,
  apps/web/src/agents-directory.ts, was removed in feat(web): Workflows lists only workflows; Agents is a roster with a Chat action (CL-8455) #890), so
  tools/agent-directory's client was calling dead routes and 404ing at
  runtime.
• Rewrites tools/agent-directory (@corbits/agent-directory-tools,
  bundled into Myra) to reach only stock Interchange routes with the
  workflow run's own bearer:
  • list_agents reads GET /api/tenants/:t/assets?kind=workflow,
    filtering to the agent-<slug>-source convention apps/web/src/agent-deploy.ts
    already uses for hand-authored agents, and derives each one's mail
    address from its slug and the tenant's domain.
  • create_agent renders and pushes a single-step, mail-triggered
    workflow definition (git smart-HTTP, mirrored server-side from
    apps/web/src/git-push.ts), resolves the tenant's catalog offerings,
    and deploys through the stock POST /workflows/deployments — the
    same pipeline the web app's create-agent panel runs.
  • message_agent replaces the old invite/mint-dm pair with a plain
    send through the stock mailbox
    (POST /api/tenants/:t/mailbox/me/inbox/send).
• Removes the now-dead @corbits/agent-directory dependency from
  apps/hub, apps/web, and tools/access's package.json (none of them
  import it), and deletes the e2e/agent-directory suites that exercised
  the deleted package's own routes.

Verified

• bun run check (typecheck, lint, fmt, full test suite across the repo)
• cd agents/myra && bun run build — the bundle still builds with the new
  factories
• bun test tools/agent-directory — 20 pass

Not verified

• No live hub/sidecar run of create_agent's git-push-then-deploy path
  against a real hub (unit tests stub the git push; the wire-level push
  logic itself mirrors apps/web/src/git-push.ts, which also has no
  tests in this repo).

[linear-code]

CL-8466