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* fix(model): deterministic, file-type-filtered backend auto-detect (#9287) When a model config declares no explicit `backend:`, Load() fell into a trial loop built by ranging the external-backends Go map (random order) with no filtering, returning the first backend whose gRPC LoadModel succeeded. An unrelated installed backend - e.g. the "opus" audio codec - could therefore win a GGUF/LLM model load, so a model that should run on llama.cpp wrongly tried to use opus. Extract the candidate selection into a pure, testable function SelectAutoLoadBackends that: - sorts the candidate list deterministically (no more map-order nondeterminism), and - for a `.gguf` model, filters to LLM-capable backends (via core/config.BackendCapabilities) and puts llama-cpp first, so an incompatible audio/codec/image backend can never win the trial loop. If filtering would leave zero candidates, the full sorted set is returned unchanged, so a previously-loadable model is never made unloadable. Signed-off-by: Ettore Di Giacinto <mudler@localai.io> Assisted-by: claude:claude-opus-4-8 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> * fix(model): break core/config <-> pkg/model import cycle in backend auto-detect The #9287 auto-detect change made pkg/model/autoload.go import core/config for the backend capability table. core/config already imports pkg/model (runtime_settings_registry.go uses model.DefaultWatchdogInterval), so this closed a core/config -> pkg/model -> core/config import cycle and broke the build and golangci-lint. Invert the dependency so the lower-level pkg/model no longer imports the higher-level core/config. pkg/model exposes RegisterLLMCapableBackendFunc and uses the registered predicate; core/config (which owns the capability table) registers it from an init(). The deterministic, GGUF-type-filtered selection behaviour is unchanged. When the predicate is unwired the GGUF filter is skipped, preserving the existing zero-candidate fallback. The unit test now injects a fake capability predicate so SelectAutoLoadBackends is exercised independently of the core/config table. Signed-off-by: Ettore Di Giacinto <mudler@localai.io> Assisted-by: Claude:opus-4.8 [Claude Code] --------- Signed-off-by: Ettore Di Giacinto <mudler@localai.io> Co-authored-by: Ettore Di Giacinto <mudler@localai.io> Co-authored-by: localai-org-maint-bot <bot-opensource@localaisrl.com>