* refactor: move client_type to provider, replace model fields with config JSONB
- Move `client_type` from `models` to `llm_providers` table
- Add `icon` field to `llm_providers`
- Replace `dimensions`, `input_modalities`, `supports_reasoning` on `models`
with a single `config` JSONB column containing `dimensions`,
`compatibilities` (vision, tool-call, image-output, reasoning),
and `context_window`
- Auto-imported models default to vision + tool-call + reasoning
- Update all backend consumers (agent, flow resolver, handlers, memory)
- Regenerate sqlc, swagger, and TypeScript SDK
- Update frontend forms, display, and i18n for new schema
* ui: show provider icon avatar in sidebar and detail header, remove icon input
* feat: add built-in provider registry with YAML definitions and enable toggle
- Add `enable` column to llm_providers (default true, backward-compatible)
- Create internal/registry package to load YAML provider/model definitions
on startup and upsert into database (new providers disabled by default)
- Add conf/providers/ with OpenAI, Anthropic, Google YAML definitions
- Add RegistryConfig to TOML config (providers_dir, default conf/providers)
- Model listing APIs and conversation flow now filter by enabled providers
- Frontend: enable switch in provider form, green status dot in sidebar,
enabled providers sorted to top
* fix: make 0041 migration idempotent for fresh databases
Guard data migration steps with column-existence checks so the
migration succeeds on databases created from the updated init schema.
Ran