Cache repeated query translation and expansion

2026-03-16 16:15:16 +09:00
parent 60fdd7842c
commit 93b9f571ab
3 changed files with 117 additions and 3 deletions
@@ -257,11 +257,12 @@
 ## Recent Change Log
 - Date: `2026-03-16`
 - What changed:
+  - Added in-process query translation / expansion cache inside `GeminiService` so repeated identical searches can reuse the same English query and variant list without re-calling Gemini or Google Translate.
  - Added in-process response caching for repeated SearXNG requests and for source fetches used during Envato / Artgrid enrichment.
  - Added in-process Gemini visual cache for fetched thumbnails and extracted preview frames so repeated candidate evaluation no longer re-downloads the same asset or reruns `ffmpeg` every time.
  - Tightened backend tests to cover the new cache helpers.
 - Why it changed:
-  - Even after reducing query fan-out, repeated search passes and Gemini reevaluation were still paying duplicate network and media-processing cost inside the same running backend.
+  - Even after reducing query fan-out, repeated search passes and Gemini reevaluation were still paying duplicate translation, network, and media-processing cost inside the same running backend.
 - How it was verified:
  - `go test ./...`
  - `bash scripts/selftest.sh`