[TheGreatAxios]

Why

Myra's live run failed at step start: her tool factories demanded env keys the
stock sidecar never supplies (hubCapabilitiesUrl, sidecarToken, tenantId,
principalId, definitionId, ...). The root cause is not wiring — Interchange
has no concept of an agent calling the hub API. A tool gets the env
createSidecarStepBuildEnv builds (sources, storage, workdir, toolCwd,
transport, address, capabilities, deps, directors), and upstream's own tool
packages are tools-mail, tools-posix and tools-lsp: none of them reaches
the hub. So the hub-calling tool packages were a Workbench invention with no
platform behind them.

What changed

Deleted, whole: tools/access, tools/agent-directory, tools/capability,
tools/catalog, tools/interaction, tools/skills,
tools/workflow-authoring — the tools/ workspace root goes with them
(workspaces, lint/fmt globs, typecheck and run-all globs, tsconfig.build.json
references, README layout row).

Also deleted:

• packages/inference-catalog — tools/catalog was its only consumer
  (apps/hub declared the dependency but imported nothing from it), plus the
  three docs that documented it and the doc for the capability route deleted
  with packages/agent-directory.
• apps/web/src/tools/registry-publish.ts and tarball.ts (and their tests):
  they existed to pack and publish tools/* into the tenant's corbits-tools
  registry, and there is nothing left to publish. The onboarding and
  workbench-create flows no longer call the publish step. The Tools page and
  registry-read.ts stay — they list whatever a tenant has published.
• agents/myra/src/tool-packages.ts (pins for the deleted packages; the source
  lineage resolves no pins anyway).

Myra's factories are now upstream's, from their published sidecar bundles:
mail from @intx/tools-mail/sidecar-bundle and posix from
@intx/tools-posix/sidecar-bundle (both 0.3.0 from npm). @corbits/memory
tools are dropped for now — that library still requires memory env keys and is
cut over separately.

Her system prompt says, thinly, what is true now: she has mail and a working
tree; to stand up an agent or workflow she writes the package and asks the
person to deploy it from Workbench; capabilities, connections and access are
approvals the person makes in the UI.

Verification

• bun run typecheck, bun run lint, bun run fmt / fmt:check, bun run test (all workspaces) — clean.
• cd agents/myra && bun run build — bundle builds with no unresolved bare
  imports.
• The rendered entry evaluated under bun (bundle + export default buildMyraWorkflow({...})): stepOrder: ["assistant"], toolPackagePins: [], factories @intx/tools-mail/sidecar-bundle (requires: ["capabilities","address"], mail_send/reply/search/read/wait) and
  @intx/tools-posix/sidecar-bundle (requires: [], read_file/write_file/
  run_shell/edit_file/search_files/grep).

Not verified: nothing was exercised against a live hub — the dev stack was not
started or restarted. The live check after merge is a run whose turn calls a
mail or posix tool instead of failing env validation.

[linear-code]

CL-8471