…follow-up) (#726)

## What

Regenerates the committed API clients against the post-#715 (merged A2 +
MVP) API surface — the follow-up that #715's merge commit explicitly
deferred:

> ⚠️ **CI will be red until generated clients are regenerated** against
the merged API surface … **Generated clients now carry ZERO diff in this
PR** (reset to main in `f9ea0730`) — regenerate upstream against the
merged API surface.

Since that merge, the **API client drift** check fails on every PR
touching `apps/**` (e.g. #725's run 8 minutes after the merge). This PR
turns it green again.

## Content

**Commit 2 — the regen (`apps/libs/api-client`, `apps/api-client-go`,
231 files).** Pure `openapi-generator` 7.23.0 output, zero hand edits,
produced with the exact `api-client-drift.yml` recipe (pinned generator
via `openapitools.json`, NestJS spec boot with local Redis, GNU sed for
the postprocess script). `analytics-api-client` and `toolbox-api-client`
regenerated to **zero diff** (already current since #721/#723).

Surface delta (mirrors the A2 + MVP API changes):
- **removed:** snapshots / docker-registry / build / backup /
archive-lifecycle / quota / usage-overview endpoints and models;
`BoxState` build states (`pending_build`, `build_failed`, …);
`write:snapshots` + `delete:snapshots` permission values;
`listBoxesPaginated`'s `snapshots` filter param
- **added:** `SystemRole`, `UpdateOrganizationName` (+ `PATCH
/organizations/{organizationId}/name`), admin overview/observability
models

**Commit 1 — prek lint unblock (34 deleted lines, dashboard).** The
Sandbox→Box rename left `LEGACY_*` route enum members byte-identical to
the canonical ones — 4 pre-existing
`@typescript-eslint/no-duplicate-enum-values` errors at HEAD that fail
the repo's prek pre-commit hook (`make lint:fix`) for *every* local
commit. The legacy routes are unreachable (identical paths, canonical
registrations precede them), so this deletes them plus the orphaned
`LegacyBoxRedirect`. No behavior change. Included here because nothing
can be committed locally until it lands.

## Verification

- `go build ./...` passes in `apps/api-client-go` (standalone),
`apps/common-go`, `apps/otel-collector/exporter`.
- The **API client drift** check on this PR is the canonical
byte-for-byte proof.

## Known follow-up (intentionally split)

Per review preference, this PR is generated code only. Three consumers
still reference removed APIs and will not compile against the new
clients until the prepared follow-up PR lands (branched on top of this
one):

- `apps/cli` — Dockerfile-build flow (`CreateBuildInfo`,
`BOXSTATE_BUILD_FAILED`/`PENDING_BUILD`, `--dockerfile`/`--context`, MCP
`buildInfo` arg, `pkg/minio`)
- `apps/dashboard` — Registries page + registry hooks, usage-overview
wiring in Spending/Limits, `templates` filter arg
- `apps/libs/sdk-typescript` —
`Box.buildInfo`/`backupState`/`backupCreatedAt`, `getBuildLogsUrl`

No CI workflow compiles these consumers on PR today (the drift check is
the only `apps/**` gate), so this PR is green-mergeable; the follow-up
restores local builds. Note `apps/runner` has a **pre-existing**
unrelated compile failure on main (`boxlite.WithPort` undefined in
`pkg/boxlite`) — out of scope here.