From 0526ede4c18d68bb2d9398e590b7dff81cb9f3df Mon Sep 17 00:00:00 2001
From: Senko-san <senko@Senko-sans-Mac-mini.local>
Date: Tue, 9 Jun 2026 13:11:20 +0300
Subject: [PATCH] =?UTF-8?q?chore:=20wire=20ACOUSTID=5FAPI=5FKEY=20+=20bump?=
 =?UTF-8?q?=20backend=20(enrichment=20=C2=A71D)?=
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- .env.example: document ACOUSTID_API_KEY (blank = embedded-tag enrichment
  only; set to enable AcoustID fingerprint identification)
- bump mcma-backend to the tag-first metadata enrichment pipeline

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
---
 .env.example | 6 +++++-
 mcma-backend | 2 +-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/.env.example b/.env.example
index cf368fd..8e90669 100644
--- a/.env.example
+++ b/.env.example
@@ -40,7 +40,11 @@ MAX_PARALLEL_DOWNLOADS=2
 
 # external services (all optional — backend degrades gracefully if unset)
 # ML_SERVICE_URL=http://ml:9000
-# ACOUSTID_API_KEY=
+# Metadata enrichment (§1D): without a key, only embedded-tag enrichment runs;
+# set it to enable AcoustID fingerprint → MusicBrainz identification.
+# Get a free key at https://acoustid.org/new-application
+ACOUSTID_API_KEY=
+# Sent to MusicBrainz/AcoustID — put a real contact so you don't get rate-limited.
 MUSICBRAINZ_USER_AGENT=mcma-backend/0.1.0 ( https://github.com/your/repo )
 # YOUTUBE_COOKIES_PATH=/data/cookies.txt
 
diff --git a/mcma-backend b/mcma-backend
index 4ade693..c72d195 160000
--- a/mcma-backend
+++ b/mcma-backend
@@ -1 +1 @@
-Subproject commit 4ade6939b60fe46350c50c4b56b566d28113aa52
+Subproject commit c72d19599a85ca7abe636e2e30eb33b1325722fc