tlc: §31 SortDialog wiring, truncation indicators, editor toggles
§31.1 SortDialog wiring: orphaned SortDialog struct connected to
Alt-Shift-T keybinding, Cmd::SortDialog variant, DialogState::Sort,
dialog key handling (Confirm/Cancel/Running), apply_sort() on Panel,
full render path through render.rs.
§31.2 Filename truncation indicator: truncate_to_width() appends ~
when content overflows panel width (MC parity). Applied to Long/Full
listing modes, info mode, and quickview mode. 5 tests.
§31.3 Editor auto-indent toggle: auto_indent field (default on),
Alt-A toggles. When off, Enter inserts plain newline with no
indentation copy. 3 tests.
§31.4 Editor show whitespace toggle: show_whitespace field (default
off), Alt-E toggles. push_rendered_text gains show_ws param — when
off, tabs render as 4 spaces and spaces render normally (no glyph
markers). 2 tests.
PLAN.md §14.7 tables updated: 30+ stale ❌ entries corrected to ✅.
Effort summary updated from ~36% to ~90% complete.
Tests: 1212 passed, 0 failed (1204 baseline + 8 new).
vasilito
2c4ccd5f3f