Implements AnthropicProvider::status/summarize/suggest_tags against the
real Anthropic Messages API (POST /v1/messages, x-api-key + anthropic-
version headers, SSE streaming for summarize, non-streaming for the
short tag reply), replacing the stub that returned "isn't built yet".
- Adds llm::credentials (mirrors sync::credentials) so hosted API keys
live in the OS credential store, never settings/DB/logs (ADR-0011).
- Fixes OpenAiCompatProvider::api_key() to actually read credential_ref
from the store instead of the hardcoded None left by the T10a.2 stub.
- Splits build_messages/build_tag_messages into system/user halves
(build_system_and_user/tag_system_and_user) since Anthropic's system
prompt is a top-level field, not a messages[0] entry like OpenAI's shape.
- is_local() is unconditionally false for AnthropicProvider (no
unauthenticated mode, unlike OpenAiCompatProvider).
- Adds a loopback raw-socket mock HTTP server (mirrors sync::oauth's
LoopbackRedirect pattern — no HTTP-mock crate in the dependency tree)
and tests proving request/response shape for both AnthropicProvider
and OpenAiCompatProvider against mocked endpoints.
iamdoubz
c3e8bae27f