893e07a543
Element Call may rotate encryption keys to index > 0. Previously we
always called set_key(identity, key, 0) regardless of the actual index,
causing decryption to fail when the active key was at a non-zero index.
- _fetch_encryption_key_http: collect all {index->key} pairs from event
- _run: set each caller key at its correct index
- on_encryption_key: handle multiple indices, remove first-key-only gate
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>