* fix(proxy): record the route's call type on failed speech spend rows
A failed /v1/audio/speech request never puts a logging object on the request
data, so the failure lift returned nothing and the spend row's call_type came
out empty (or whatever the client sent in the body). Without a logging object,
lift the call type the route already resolved, so a failure row records the
same call type a success row on that route records
* fix(proxy): keep the call type of a failure logged under its own route
An MCP tool listing that fails inside a Responses, chat, or messages call
is logged under /mcp/list_tools, so its spend row keeps list_mcp_tools
instead of taking the outer request's call type
* fix(proxy): take a failed row's call type from its endpoint, not a route path guess
* fix(proxy): log the endpoint call type on failed image generation and rerank rows
* fix(proxy): estimate failed-call ledger usage from the route's call type again
The failure usage snapshot now gets the same call type the spend row uses for
its estimate, so a failed Responses call counts input from the newest
compaction item again, as on main.
The endpoint call type tests now go through real routers whose provider
answers 400, instead of asserting on a mocked failure hook.
* test(proxy): type the failed spend row tests and fixture
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Co-authored-by: mateo-berri <277851410+mateo-berri@users.noreply.github.com>
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