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Changeset 0.22.1 (#95)

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xcaliber
2026-03-02 09:58:38 +00:00
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All notable changes to Chat Switchboard.
## [0.22.1] — 2026-03-02
### Added
- **Provider profile schemas.** Each provider type declares its configurable settings with types, defaults, validation constraints, and dependency rules. Built-in schemas for openai, anthropic, venice, openrouter. Unknown types fall back to the openai schema. `providers/profile.go`.
- **Provider hooks (pre-request / post-stream).** Declarative request/response transforms driven by `provider_configs.settings` JSONB. Replaces any need for hardcoded provider switch statements in the completion path. `providers/hooks.go`.
- **OpenAI:** `system_prompt_prefix`, `frequency_penalty`, `presence_penalty` → injected into ExtraBody.
- **Anthropic:** `extended_thinking` + `thinking_budget` → injects `thinking` config into wire JSON, sets `anthropic-beta` header, clears temperature.
- **Venice:** `enable_thinking`, `enable_web_search`, `include_venice_system_prompt` → builds `venice_parameters` in ExtraBody.
- **OpenRouter:** `route`, `require_parameters` → serialized into `X-Provider-Preferences` header.
- **`ExtraBody` on `CompletionRequest`.** Provider hooks write arbitrary key-value pairs that get merged into the wire-format JSON via `mergeExtraBody()` in both OpenAI and Anthropic `doRequest` methods. Keeps the canonical request type clean while supporting provider-specific extensions.
- **Anthropic extended thinking stream support.** `content_block_delta` with `type=thinking_delta` now routes to the `Reasoning` field on `StreamEvent`, matching the existing `reasoning_content` path used by OpenAI-compatible providers.
- **Provider type registry.** `providers.RegisterType()` combines provider implementation + metadata (name, description, default endpoint, profile schema). `providers.ListTypes()` returns all registered types.
- **`GET /api/v1/admin/provider-types` endpoint.** Returns metadata and profile schemas for all registered provider types. Used by admin UI to render provider creation forms and show available settings per type.
- **Preset setting overrides.** `MergePresetSettings()` merges persona-level overrides onto provider-level settings, respecting `ProviderOnly` fields that cannot be changed at the preset level.
- **Comprehensive tests.** `providers/hooks_test.go`: 17 tests covering all four hook implementations, profile schemas, GetHooks, MergePresetSettings, mergeExtraBody, nil safety.
### Changed
- `providers/registry.go`: `Init()` now uses `RegisterType()` with full metadata instead of bare `Register()`. `ProviderTypeMeta` struct with ID, name, description, default endpoint, profile schema.
- `providers/provider.go`: `CompletionRequest.ExtraBody` field (json:"-"). `mergeExtraBody()` helper function. `Model` struct unchanged.
- `providers/openai.go`: `doRequest()` merges ExtraBody into wire JSON before HTTP dispatch.
- `providers/anthropic.go`: `doRequest()` merges ExtraBody + sets `anthropic-beta` header when thinking is enabled. Stream processing handles `thinking_delta` content block deltas. Wire type gains `Thinking` field.
- `handlers/completion.go`: `PreRequest` hook invoked at all three dispatch paths (multi-model, streaming, sync).
- `handlers/stream_loop.go`: `PostStreamEvent` hook invoked after each streaming event in both `streamWithToolLoop` and `streamModelResponse`.
- `handlers/health_admin.go`: Added `GetProviderTypes` handler.
- `main.go`: `GET /api/v1/admin/provider-types` route registered.
## [0.22.0] — 2026-03-02
### Added