core-image-processing-workflowlisted

# Core Image Processing Workflow ## Purpose Guide Core Image processing and rendering without turning `CIImage` into a bitmap wrapper or mixing transformation with file decoding, visual recognition, or display-container ownership. Preserve Core Image, Core Graphics, Core Video, and Metal types until an explicit output boundary. ## When To Use - Use for Core Image filter chains, compositing, RAW development, custom kernels, color or HDR processing, render destinations, and Core Image performance or correctness repair. - Recommend `apple-image-representation-workflow` when decoding, encoding, metadata, or platform image-container behavior is primary. - Recommend the Vision workflow when the requested outcome is recognition or analysis rather than pixel transformation. ## Single-Path Workflow 1. Classify the request: - built-in filter chain - compositing, masking, scaling, or geometry - RAW development - custom kernel or processor - color, HDR, or alpha repair - render destination or interop - performance or correctness diagnosis 2. Apply the Apple docs gate: - read current Core Image documentation before proposing implementation changes - state the documented behavior relied on - apply `../../shared/references/apple-image-type-ownership.md` - use `references/core-image-processing-and-rendering.md` for graph, context, color, render, and performance decisions - use `references/core-image-diagnostics-and-handoffs.md` for repair probes and