* fix: surface approval prompt in UI instead of getting stuck in Thinking
When a dangerous command was detected during streaming, the approval system
would call submit_pending() but no SSE 'approval' event would be emitted to
the frontend. The agent thread either blocked indefinitely (gateway path) or
returned an approval_required status the UI never saw (EXEC_ASK path). Either
way the chat UI stayed stuck in 'Thinking...' with no prompt shown.
Root cause: streaming.py used HERMES_EXEC_ASK=1 but never registered a
register_gateway_notify() callback. Without it, check_all_command_guards()
fell back to the legacy polling path (submit_pending only), which relies on
on_tool() polling -- but on_tool() fires *before* the tool runs, so by the
time the terminal tool detected the dangerous command and called submit_pending,
the approval event had already missed its window.
Fix (streaming.py):
- Register a gateway-style notify_cb via register_gateway_notify() before the
agent runs. The callback calls put('approval', ...) to emit the SSE event
the moment a dangerous command is detected, regardless of on_tool() timing.
- Unregister via unregister_gateway_notify() in the finally block to unblock
any threads still waiting if the stream ends or is cancelled mid-approval.
- Keep the on_tool() fallback poll for older approval module versions.
Fix (routes.py):
- Import and call resolve_gateway_approval() in _handle_approval_respond().
This unblocks the agent thread parked in entry.event.wait() when the user
clicks Allow or Deny in the UI. Without this call the thread would block
until the 5-minute gateway timeout.
Tests (tests/test_approval_unblock.py):
- 16 new tests covering: resolve_gateway_approval() event signalling, deny/
session/once choices, resolve_all, notify_cb registration/firing/cleanup,
unregister signals blocked entries, full end-to-end streaming simulation,
module symbol exports, and HTTP endpoint regressions.
515 tests pass (499 existing + 16 new).
* feat: full approval UI — i18n buttons, keyboard shortcut, loading state, scoping fix
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Co-authored-by: Nathan Esquenazi <nesquena@gmail.com>
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