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feat(gateway): pass through upstream finish_reason end-to-end

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The gateway hardcoded "stop" on every terminating stream chunk, so
tool-call rounds reported finish_reason=stop and length caps were
invisible to clients. UnifiedChunk now carries finish_reason; adapters
emit it (with empty-string finish reasons like sensenova treated as
non-terminal), standardSSEChunk passes it through for un-adapted
upstreams, [DONE] no longer emits a duplicate reason-less done chunk,
and both streaming paths emit the real reason with "stop" as fallback.

Also vendor sensenova/agentrouter adapters into the repo: they were
WebUI-only uploads and a deploy sync silently removed them while live
AUTO-chain slots still referenced them.
This commit is contained in:
JianFeeeee
2026-08-24 15:05:50 +08:00
parent 9c99ded8c0
commit bb3af3bdb3
17 changed files with 399 additions and 27 deletions
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14
internal/lua/adapters/gemini.lua
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@ -110,7 +110,19 @@ function adapter.transform_stream_chunk(raw_chunk)
return ""
end
local cand = chunk.candidates[1]
local unified = { content = "", done = (cand.finishReason ~= nil) }
-- Gemini finishReason -> OpenAI finish_reason
local finish = nil
if cand.finishReason ~= nil then
if cand.finishReason == "MAX_TOKENS" then
finish = "length"
elseif cand.finishReason == "SAFETY" or cand.finishReason == "RECITATION"
or cand.finishReason == "BLOCKLIST" then
finish = "content_filter"
else
finish = "stop"
end
end
local unified = { content = "", done = (finish ~= nil), finish_reason = finish }
local reasoning = ""
local tools = {}
if cand.content and cand.content.parts then