Replace the three-method LlmProvider trait (generate_search_pass,
generate_rewrite_pass, supports_web_search) and ProviderCapabilities
with a single call_llm method. Update all three provider implementations
(Gemini, OpenAI, Anthropic) and all callers in synthesis.rs,
source_scraper.rs, and api_keys.rs.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Backend:
- OpenAiProvider: Responses API with web_search_preview (pass 1),
Chat Completions with json_schema structured output (pass 2)
- AnthropicProvider: Messages API with web_search tool (pass 1),
schema-in-prompt for structured output, code fence stripping (pass 2)
- Pipeline adaptation: skip scrape+rewrite when >70% of search URLs are valid
- Provider factory updated for all three providers
- Error sanitization extended for Anthropic key patterns (sk-ant-)
- 44 new unit tests (OpenAI, Anthropic, factory, pipeline heuristic)
Frontend:
- Provider-specific info text below model selection
- Web search support badges (green/gray)
- Generate page shows selected provider and model
- Warning banner when provider lacks web search
- Provider utility module with 10 tests
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
oabrivard