LLM settings environment-configurable

src/repo_registry/web_api/app.py

@@ -5,6 +5,7 @@ from pathlib import Path
 
 from fastapi import Depends, FastAPI, HTTPException
 from pydantic import BaseModel, Field
+from pydantic_settings import BaseSettings, SettingsConfigDict
 
 from repo_registry.core.service import RegistryService
 from repo_registry.llm_extraction import LLMCandidateExtractor, create_llm_connect_adapter
@@ -12,7 +13,9 @@ from repo_registry.repo_ingestion.git import GitIngestionService
 from repo_registry.storage.sqlite import NotFoundError, RegistryStore
 
 
-class Settings(BaseModel):
+class Settings(BaseSettings):
+    model_config = SettingsConfigDict(env_prefix="REPO_REGISTRY_")
+
     database_path: str = Field(default="var/repo-registry.sqlite3")
     checkout_root: str = Field(default="var/checkouts")
     llm_provider: str | None = Field(default=None)