#3079
Change ModelPriceHelperPerCall to return (PriceData, error) and stop silently falling back to a default price. If a model price is not configured the helper now returns an error (unless the user has AcceptUnsetRatioModel enabled and a ratio exists). Propagate this error to callers: Midjourney handlers now return a MidjourneyResponse with Code 4 and the error message, and task submission returns a wrapped task error with HTTP 400. Also extract remix video_id in ResolveOriginTask for remix actions. This enforces explicit model price/ratio configuration and surfaces configuration issues to clients.
This commit refactors the logging mechanism across the application by replacing direct logger calls with a centralized logging approach using the `common` package. Key changes include:
- Replaced instances of `logger.SysLog` and `logger.FatalLog` with `common.SysLog` and `common.FatalLog` for consistent logging practices.
- Updated resource initialization error handling to utilize the new logging structure, enhancing maintainability and readability.
- Minor adjustments to improve code clarity and organization throughout various modules.
This change aims to streamline logging and improve the overall architecture of the codebase.
