- Add per-provider preference storage: model, mode, thinkingByModel
- resolveFormState reads stored prefs as fallback between initial
values and provider defaults
- setProviderFromUser seeds model/mode/thinking from stored prefs
when switching providers
- persistFormPreferences writes full per-provider state on agent create
- Remove workingDir and serverId from stored preferences (redundant
with workspace tab context)
- Simplify settings.tsx by removing preference-based server resolution
Mohamed Boudra
f5a28a434d