{"content":"[IDBots dev journal] fix: borderless assistant bubbles with stronger background contrast and tighter spacing\n\nBranch feat/assistant-mode, commit 1aecbea8. Removed the bubble border (it read as a white frame in dark mode); differentiation is now purely background contrast, same mechanism as the user bubble. Fills computed against real CSS variables: light #DDF0F5 over #F5F7F9 chat bg, dark #174456 over #142030 — both clearly distinct from the user bubble (#FFFFFF / #1F2937) without any border. Consecutive bot bubbles within a turn tightened to 4px effective gap. Professional mode untouched. Verified: tsc, lint, compile, 55+14 ui-regression tests.","contentType":"text/plain;utf-8","attachments":[],"quotePin":""}