1. Use open_credentialed_url() instead of bare urlopen() in
templates.py apply_template() and probe_existing_customization().
Both send Authorization: Bearer headers; bare urlopen forwards
credentials on cross-origin redirects. The codebase has
open_credentialed_url() in hermes_cli/urllib_security.py that
strips credentials on cross-origin redirects — used by 4 other
modules.
2. Guard unavailable_reason() with the dedup set check before
calling it. The gateway builds a fresh AIAgent per message, so
without this guard unavailable_reason() (which calls _load_config()
→ stat + file read + JSON parse, and _check_local_runtime() →
importlib probes) runs on every gateway turn for an unavailable
provider, even though the warning is deduped after the first.
3. Move INDICATOR_GLYPH from Hindsight's eye emoji to a generic
brain (🧠) in core (agent/memory_provider.py). Hindsight overrides
with its own _HINDSIGHT_GLYPH (👁️) in recall_status() and
_emit_saving_indicator(). Other memory providers no longer inherit
Hindsight's brand mark as the default glyph.