refactor: move remaining api packages to core (#1731)

* core 1

* api/openai/files fix

* core 2 - core/config

* move over core api.go and tests to the start of core/http

* move over localai specific endpoints to core/http, begin the service/endpoint split there

* refactor big chunk on the plane

* refactor chunk 2 on plane, next step: port and modify changes to request.go

* easy fixes for request.go, major changes not done yet

* lintfix

* json tag lintfix?

* gitignore and .keep files

* strange fix attempt: rename the config dir?

api/ctx/fiber.go

@@ -1,43 +0,0 @@
-package fiberContext
-
-import (
-	"fmt"
-	"strings"
-
-	"github.com/go-skynet/LocalAI/pkg/model"
-	"github.com/gofiber/fiber/v2"
-	"github.com/rs/zerolog/log"
-)
-
-// ModelFromContext returns the model from the context
-// If no model is specified, it will take the first available
-// Takes a model string as input which should be the one received from the user request.
-// It returns the model name resolved from the context and an error if any.
-func ModelFromContext(ctx *fiber.Ctx, loader *model.ModelLoader, modelInput string, firstModel bool) (string, error) {
-	if ctx.Params("model") != "" {
-		modelInput = ctx.Params("model")
-	}
-
-	// Set model from bearer token, if available
-	bearer := strings.TrimLeft(ctx.Get("authorization"), "Bearer ")
-	bearerExists := bearer != "" && loader.ExistsInModelPath(bearer)
-
-	// If no model was specified, take the first available
-	if modelInput == "" && !bearerExists && firstModel {
-		models, _ := loader.ListModels()
-		if len(models) > 0 {
-			modelInput = models[0]
-			log.Debug().Msgf("No model specified, using: %s", modelInput)
-		} else {
-			log.Debug().Msgf("No model specified, returning error")
-			return "", fmt.Errorf("no model specified")
-		}
-	}
-
-	// If a model is found in bearer token takes precedence
-	if bearerExists {
-		log.Debug().Msgf("Using model from bearer token: %s", bearer)
-		modelInput = bearer
-	}
-	return modelInput, nil
-}