Two bugs in the `hermes tools` reconfigure flow caused picking xAI Grok
Imagine for video_gen (or image_gen) to feel like a no-op:
1. `_is_provider_active()` had a branch for `image_gen_plugin_name` but
none for `video_gen_plugin_name`, so a row marked as the active xAI
video provider was never recognized as active. The picker fell through
to the env-var fallback in `_detect_active_provider_index()`, which
matched the FAL row (because `FAL_KEY` is set), so the picker visually
defaulted to FAL even though the user had selected xAI.
2. `_plugin_video_gen_providers()` and `_plugin_image_gen_providers()`
built picker rows from the plugin's `get_setup_schema()` but only
copied `name`, `badge`, `tag`, `env_vars`. The xAI plugins declare
`post_setup: "xai_grok"` so the picker should run the OAuth /
API-key prompt hook after selection — that key was silently dropped,
so the hook never fired from the picker rows.
Adds the missing `video_gen_plugin_name` branch (placed before the
`managed_nous_feature` block, mirroring the existing image_gen branch)
and propagates `post_setup` from the plugin schema into both picker-row
builders. Adds focused tests in `test_video_gen_picker.py` and
`test_image_gen_picker.py`.
`_reconfigure_provider()` handled `image_gen_plugin_name` in both
branches (no-env-vars early return and post-env-vars) but never mirrored
the same handling for `video_gen_plugin_name`. The first-time
`_configure_provider()` path correctly routes to
`_select_plugin_video_gen_provider()`; reconfigure forgot to.
Repro:
1. Enable video_gen in `hermes tools` → Configure for All Platforms.
2. Go back into `hermes tools` → Reconfigure tool → Video Generation.
3. Pick xAI (with XAI_API_KEY already set).
4. Hit Enter at the "keep current key?" prompt.
Expected: `video_gen.provider: xai` written to config.yaml.
Actual: function returns silently; no `video_gen:` block ever written;
`video_generate` tool fails with "No video generation backend is
configured."
Fix: add the missing `video_gen_plugin_name` branch in both code paths
of `_reconfigure_provider()`, mirroring the existing
`image_gen_plugin_name` handling and the first-time configure logic.
Tests: `tests/hermes_cli/test_video_gen_picker.py` covers both branches
(env-vars-set keep-current and no-env-vars paths).
