* studio: register /settings route that opens the settings dialog
Navigating to /settings used to render Not Found because the route
was never registered. The settings dialog only opened via the user
menu, so /settings was a broken deep link if shared. Add a route
that calls useSettingsDialogStore.openDialog() and redirects to the
post-auth landing page so the modal appears on top of the chat.
* studio: harden Connections dialog provider sync and allow manual model IDs
Two related fixes for the Connections panel.
1. Keep localStorage providers when the server returns an empty list.
The dialog used to sync from /api/providers/ on mount and unconditionally
overwrite the Zustand provider store with the server result. When the
server had no enabled configs but the local store had entries (legacy
users, fresh dev installs, or providers created via earlier paths),
opening the dialog silently wiped them. The model picker reads from the
same store, so the chat header reverted from 'gpt-4o . OpenAI' to the
raw 'external::openai-1::gpt-4o' key. Treat the server as authoritative
only when it actually has rows; otherwise keep the local view.
2. Accept manual model IDs alongside the live catalog for remote-mode
providers (DeepSeek, OpenAI, etc.). Previously the only way to save was
to load the available-models catalog via a live API call, which fails
in air-gapped setups, behind 502s, or when the user already knows the
exact model ID. Add a Textarea fallback in the same render block, and
relax the validation to accept manual IDs even when availableModels is
empty. The validation message now points users at the manual path.
* studio: restrict manual model ID entry to openrouter among remote providers
Address review feedback: major remote providers (openai, anthropic,
gemini, mistral, cohere, deepseek, ...) expose large per-model
parameter surfaces that differ across models, so accepting pasted
model IDs leads to mismatched parameter expectations and frustrating
runtime errors. Keep their catalog curated by hiding the manual
textarea and falling back to the prior 'Load available models first'
validation toast for them.
OpenRouter drops unsupported parameters server-side, so manual entry
remains useful there; keep the textarea and the union save path for
it. Custom and curated backends already gated via isCustomProvider /
isCuratedModelList and continue to require manual entry as before.
* studio: shorten code comments in chat-providers-dialog.tsx
Trim three multi-line comment blocks to single lines per review.
7214f59d57