Align with gpustack backend commits 7b57cd3b (add route dimension to
usage breakdown) and 51fd25c8 (use model_route_id as models_called):
* group_by, filters, and BreakdownItem now use the `route` dimension;
`models` filter cascader is replaced with a flat `routes` selector
(routes have no provider/cluster grouping).
* Tab / group_by option / column header keep the user-facing "模型 / Model"
wording — only the underlying data dimension changed.
* Drop cluster_name / provider_type columns from the breakdown table;
drop api_keys_used column per design.
* Fix pre-existing excel export bug in use-export-table — string
dataIndex was lodash-joined char-by-char ("input_tokens" →
"i_n_p_u_t..."), array dataIndex was used as a flat key against nested
rows. Rebuilt around buildSheetMeta that emits a stable field key plus
a formatMap using _.get(row, path) for nested values. Sheet name kept
as `models` to match the visible column label.
Introduce `pages/api-keys/plugin.tsx` and `pages/model-routes/plugin.tsx`
defining a unified `{ key, labelId, icon, priority, danger, form,
useCreate }` contract that plugins use to contribute per-row
"configure this record" actions. The host renders one dropdown entry
per registered action and mounts each entry's form, ordered by a
single numeric priority (built-ins are ranked on the same scale; rows
flagged `danger` sink to the bottom).
Drops the older `apiKeys.rowActions` / `modelRoutes.rowActions` slots
and the implicit drawer half of
`<PluginExtraFields name="APIKeysPageGlobal" />`. The model-routes
mount point stays for the page-level quota-defaults bulk-fetch and now
also accepts a `refreshToken` so per-row saves can invalidate derived
page data without changing the row set.
Yuxing Deng