Image tools now actually process images: - Compress: re-encode JPEG with configurable quality - Resize: Lanczos3 resize with fit modes (inside/fill/crop) - Convert: cross-format conversion (JPEG/PNG/WebP/GIF/BMP) PDF tools: - Merge: combine multiple PDFs into one document - Split: extract page ranges via pagespec (1-3,5,7-9) - Images to PDF: embed images as JPEG in A4 pages with scaling - Compress: re-save PDF with optimized cross-reference table Also fix metrics format to emit default zero values. Co-Authored-By: Kilo <kilo@kilo.ai>