sidecar timeouts: a constant, not an env var

const TIMEOUTS_ON = false, in create-proxy.ts. flip the line to turn them
back on. no environment variable, nothing to set per host.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Officer-Session: 656f5c85-e49a-4f1f-b9f3-042a04b4d043

.env.example

@@ -85,8 +85,3 @@ PUBLIC_URL=http://localhost:9000
 
 # Immich (officer-photos) is configured from the app, not from here — Photos → Connection. Instances and
 # their API keys live encrypted in `photos_config`, so the platform never sees a key.
-
-# Put request timeouts back on sidecar proxies. Unset is the default and means NO timeout on either leg:
-# long requests arrive from everywhere (transcribing a 42-minute recording, a from-scratch music reindex)
-# and every ceiling is a number somebody guessed. Set to 1 only to restore the old behaviour.
-# SIDECAR_TIMEOUTS=1