cde0c33031
Enter still submits; Ctrl+J (always) and Alt+Enter (most terminals) insert a newline at the cursor. True Shift+Enter isn't distinguishable from Enter in bubbletea v1.3.10 (terminals send the same byte, no kitty-protocol parsing), so these are the working stand-ins — noted in the input hint. - editorLines() renders the buffer as styled rows with the caret at the cursor, splitting on \n and capping at maxInputLines (last rows kept). Both the idle launcher input and the in-session bottom bar use it and grow to fit; View() sizes the bottom bar via inputBarHeight() instead of the fixed inputH. - Footer gains a "^J newline" hint in insert mode (non-filter); the launcher sub-line shows "⌥↵/^J newline". New "compose" preview kind + editor_lines_test (split + height cap). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>