Tyler Hallada
a0e8f3cafb
1. Start in Adaptive Drill by default: App launches directly into a typing lesson instead of the menu screen. 2. Fix error tracking for backspaced corrections: Add typo_flags HashSet to LessonState that persists error positions through backspace. Errors at a position are counted even if corrected, matching keybr.com behavior. Multiple errors at the same position count as one. 3. Fix keyboard visualization with depressed keys: Enable crossterm keyboard enhancement flags for key Release events. Track depressed keys in a HashSet with 150ms fallback clearing. Depressed keys render with bright/bold styling at highest priority. Add compact keyboard mode for medium-width terminals. 4. Responsive UI for small terminals: Add LayoutTier enum (Wide >=100, Medium 60-99, Narrow <60 cols). Medium hides sidebar and shows compact stats header and compact keyboard. Narrow hides keyboard and progress bar entirely. Short terminals (<20 rows) also hide keyboard/progress. 5. Delete sessions from history: Add j/k row navigation in history tab, x/Delete to initiate deletion with y/n confirmation dialog. Full chronological replay rebuilds key_stats, letter_unlock, profile scoring, and streak tracking. Only adaptive sessions update key_stats/letter_unlock during rebuild. LessonResult now persists lesson_mode for correct replay gating. 6. Improved statistics display: Bordered summary table on dashboard, WPM bar graph using block characters (green above goal, red below), accuracy Braille trend chart, bordered history table with WPM goal indicators and selected-row highlighting, character speed distribution with time labels, keyboard accuracy heatmap with percentage text per key, worst accuracy keys panel, new 7-month activity calendar heatmap widget with theme-derived intensity colors, side-by-side panel layout for terminals >170 cols wide. Also: ignore KeyEventKind::Repeat for typing input, clamp history selection to visible 20-row range, and suppress dead_code warnings on now-unused WpmChart. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>