 curo1305
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0fd6930b41
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feat(07-01): services/ai_config.py HKDF helpers, ProviderConfig loader, env seed
- Create backend/services/ai_config.py with:
- _derive_ai_settings_key(master_key, provider_id): fresh HKDF per call, salt=provider_id.encode("utf-8"), info=b"ai-provider-settings" (domain-separated from b"cloud-credentials")
- encrypt_api_key / decrypt_api_key: Fernet round-trip without JSON wrapping
- load_provider_config(session): reads is_active=True row from system_settings, decrypts api_key_enc; returns stub ProviderConfig (real class lands in Plan 02)
- seed_system_settings_from_env(session): idempotent insert of default provider on first boot
- _ProviderConfigStub: minimal Pydantic model stub until ai/provider_config.py exists (Plan 02)
- Update backend/main.py: import seed_system_settings_from_env, call in lifespan with try/except so missing table (pre-migration fresh boot) doesn't crash startup
- Round-trip smoke test: encrypt_api_key → decrypt_api_key == original plaintext
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2026-06-04 18:50:01 +02:00 |
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