- renderPaste now looks up the paste's attachment and passes it as 'Attachment' so the paste.html attachment chip/image preview renders - remove duplicated .iconbtn.dark-toggle blocks (3x from stacked branches #127/#128) and duplicate mobile-media variants Verified: go vet + go test pass; live render on :18098 shows attachment-chip + img src=/f/id/name for a png upload (served 200 image/png) and chip-with-filename, no preview, for an html upload.