## Summary
Allow EDU ChatGPT workspaces to fetch cloud config bundles. The existing
cloud config eligibility gate only allowed business-like and enterprise
plans, which meant EDU admins could configure managed policies in the UI
but the Codex client would skip fetching them.
This keeps individual/pro and team-like usage-based plans excluded, and
adds service-level coverage for both `edu` and `education` plan aliases.
## Validation
- `just fmt`
- `just test -p codex-cloud-config`
- Built the Codex app locally, created a new EDU ChatGPT workspace, and
verified config bundles can be fetched and are properly applied.
## Summary
- Splits the monolithic `codex-cloud-config` implementation into focused
modules.
- Keeps behavior unchanged from the preceding config bundle runtime
switch.
## Details
This is the reviewability follow-up after the lineage-preserving
migration PRs. The split separates backend transport, loader
construction, cache handling, metrics, validation, service
orchestration, and focused tests into named files.
Verification: `just fmt`; `just test -p codex-cloud-config`.
## Summary
- Adapts the moved `codex-cloud-config` crate from the legacy cloud
requirements endpoint to the new config bundle endpoint.
- Switches runtime consumers from `CloudRequirementsLoader` to
`CloudConfigBundleLoader` so one shared bundle supplies cloud-delivered
config and requirements.
- Removes the legacy cloud requirements domain loader path.
## Details
This intentionally keeps `codex-cloud-config` monolithic for review
lineage: the previous PR establishes the crate move, and this PR shows
the behavior change against that moved implementation. A follow-up PR
splits the module back into focused files.
The new bundle path preserves the important cloud requirements loader
semantics where intended: account-scoped signed cache, 30 minute TTL, 5
minute refresh cadence, retry/backoff, auth recovery, and fail-closed
startup loading. The cached payload changes from a single requirements
TOML string to the backend-delivered bundle, and validation rejects
malformed config or requirements fragments before cache write/use.
## Summary
- Moves the existing `codex-cloud-requirements` crate to
`codex-cloud-config`.
- Updates workspace dependencies and imports to the new crate name.
- Intentionally keeps runtime behavior unchanged: this still fetches the
legacy cloud requirements endpoint.
## Details
This PR exists to make the lineage obvious before the bundle migration.
GitHub should show the old `codex-rs/cloud-requirements/src/lib.rs`
implementation as moved to `codex-rs/cloud-config/src/lib.rs`, rather
than as unrelated new code.
The follow-up PR adapts this moved crate to the new config bundle API
and switches runtime consumers over.