T17 Editor: CodeEditor with gutter, folds, minimap, rulers, guides, brackets, whitespace, cursors, multi-cursor, sticky scroll, inlay hints, lenses, decorations, ghost text, inline chat and diff (T17a); completions, signatures, hover, code actions, rename, references, outline, go to symbol, call and type hierarchy (T17b); find and replace, search panel and filters (T17c); problems, output, debug console, extensions, settings with JSON, keybindings, theme previews, welcome, recent projects, switcher, task runner (T17d); status items (T17e)

Shared: generic undo History, OverflowMenu icon and tooltip, StatusBarItem leading, six Lucide icons.

TASKS.md

@@ -229,3 +229,8 @@ Per-component lines live in `tasks/`. Tags there:
 | T16d | 2 | PASS | |
 | T16e | 1 | FAIL | a smaller loss than expected read as a miss |
 | T16e | 2 | PASS | |
+| T17a | 1 | — | pending review |
+| T17b | 1 | — | pending review |
+| T17c | 1 | — | pending review |
+| T17d | 1 | — | pending review |
+| T17e | 1 | — | pending review |