Remove TODO.txt integration

assets/style.css

@@ -466,9 +466,6 @@ body.edit-mode footer { max-width: none; }
 .fab { position: fixed; bottom: var(--space-4); right: var(--space-4); z-index: 50; }
 button.fab { display: none; }
 .fab-rail { bottom: calc(var(--space-4) + 3rem + var(--space-2)); }
-/* Todo FAB: third slot, above the tree and right-rail FABs. Only created when
-   todo.txt exists (todo-rail.js). */
-.fab-todo { bottom: calc(var(--space-4) + 2 * (3rem + var(--space-2))); }
 
 /* === Companion status === */
 .companion-status { margin-left: auto; }
@@ -677,11 +674,6 @@ aside.sidebar:empty { display: none; }
     padding: 0;
     overflow: visible;
 }
-/* The todo widget fills the overlay: drop the rail divider and lift the
-   internal height cap so the whole file is editable on mobile. */
-.overlay-body .todo-rail { border-bottom: none; padding-bottom: 0; }
-.overlay-body .todo-rail .todo-rail-view,
-.overlay-body .todo-rail .cm-editor { max-height: none; }
 /* Right rail keeps its column spacing (TOC above widgets) inside the overlay;
    the base .sidebar already sets flex-direction + gap. */
 .overlay-body .sidebar { display: flex; }
@@ -733,9 +725,9 @@ aside.sidebar:empty { display: none; }
 /* === Tree sidebar (persistent left navigation rail) ===
    Reuses the .tree-row / .tree-children / .tree-name / .tree-chevron modules.
    Desktop: a full-height flex column in the app-shell (composes with .col)
-   holding the todo widget pinned on top and the tree's own scroll region
-   below. Mobile: not laid out inline — its content is surfaced through the
-   Overlay via the stacked FABs (see responsive). */
+   holding the tree's own scroll region. Mobile: not laid out inline — its
+   content is surfaced through the Overlay via the stacked FABs (see
+   responsive). */
 /* No right padding on the aside: the scrolling children below reach the
    border-right so their scrollbars sit flush against the divider line (they
    pad their own content off the scrollbar instead). */
@@ -746,9 +738,8 @@ aside.sidebar:empty { display: none; }
     padding: var(--space-4) 0 var(--space-4) var(--space-4);
     border-right: var(--border-dashed);
 }
-/* The tree's scroll region: only the tree overflows, the todo widget above
-   keeps its own internal scroll. Also the node the tree FAB moves into the
-   Overlay, so font sizing lives here rather than on the aside. */
+/* The tree's scroll region: the tree overflows here. Also the node the tree FAB
+   moves into the Overlay, so font sizing lives here rather than on the aside. */
 .tree-scroll {
     flex: 1 1 auto;
     min-height: 0;
@@ -760,63 +751,6 @@ aside.sidebar:empty { display: none; }
     user-select: none;
 }
 
-/* === Todo rail (root todo.txt widget) ===
-   Pinned above the folder tree (todo-rail.js). Hidden via the [hidden]
-   attribute until GET /_todo confirms the file exists. A long file scrolls
-   internally rather than pushing the tree off screen; the height cap is
-   lifted inside the Overlay. */
-.todo-rail {
-    flex-shrink: 0;
-    padding-bottom: var(--space-3);
-    border-bottom: var(--border-dashed);
-}
-.todo-rail-head {
-    font-size: var(--font-xs);
-    margin-bottom: var(--space-2);
-    padding-right: var(--space-2);
-}
-/* Compact action toolbar in the widget header. Buttons are the app's standard
-   bracketed .btn/.btn-tool; the row just holds them together and lets them wrap
-   in the narrow rail rather than overflow. */
-.todo-toolbar { flex-wrap: wrap; }
-/* Roomier tap targets when the widget is surfaced full-screen on mobile. */
-.overlay-body .todo-toolbar .btn {
-    font-size: var(--font-sm);
-    padding: var(--space-1) var(--space-2);
-}
-.todo-unsaved { color: var(--primary-hover); font-size: var(--font-xs); }
-/* The scrolling children run edge-to-edge (the aside has no right padding) so
-   their scrollbars are flush with the divider; padding-right keeps their text
-   clear of the scrollbar. */
-.todo-rail-view {
-    font-family: "Iosevka Slab", monospace;
-    font-size: var(--font-xs);
-    line-height: 1.5;
-    white-space: pre-wrap;
-    word-break: break-word;
-    max-height: 40vh;
-    overflow-y: auto;
-    padding-right: var(--space-2);
-    cursor: text;
-}
-.todo-rail .cm-editor { max-height: 40vh; }
-.todo-rail .cm-content { padding-right: var(--space-2); }
-/* Hanging indent per task. Each todo (one logical line) starts flush-left and
-   its wrapped continuation lines are indented, so a new task is distinguishable
-   from a wrapped line even when it has no leading priority/date/x marker. The
-   indent is character-relative (ch) because it aligns to the monospace text,
-   not to the layout's spacing scale. */
-.todo-rail .cm-line {
-    padding-left: 2ch;
-    text-indent: -2ch;
-}
-.todo-rail .todo-fallback {
-    width: 100%;
-    min-height: 10rem;
-    font-family: "Iosevka Slab", monospace;
-    font-size: var(--font-xs);
-}
-
 /* === Movie info box === */
 .movie-info { margin: var(--space-3) 0; }
 .movie-info::after { content: ""; display: block; clear: both; }