Sub2API v1.0 - AI API 网关（二开初始版本，基于上游 Wei-Shaw/sub2api）

backend/migrations/225_backfill_codex_fingerprint_seed.sql

@@ -0,0 +1,21 @@
+-- Backfill system-managed Codex fingerprint seeds for enabled OpenAI OAuth accounts.
+-- Idempotent: valid canonical seeds are preserved on rerun.
+UPDATE accounts
+SET extra = jsonb_set(
+    COALESCE(extra, '{}'::jsonb),
+    '{codex_fingerprint_seed}',
+    to_jsonb(gen_random_uuid()::text),
+    true
+)
+WHERE deleted_at IS NULL
+  AND platform = 'openai'
+  AND type = 'oauth'
+  AND COALESCE(extra->>'codex_fingerprint_mode', '') IN ('device', 'session', 'full')
+  AND (
+      extra->>'codex_fingerprint_seed' IS NULL
+      OR btrim(extra->>'codex_fingerprint_seed') = ''
+      OR NOT (
+          extra->>'codex_fingerprint_seed' ~ '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$'
+          AND extra->>'codex_fingerprint_seed' <> '00000000-0000-0000-0000-000000000000'
+      )
+  );