fix(browse): YAML editor cut off at viewport bottom

.preview-pane__body was flex: 1 + display: flex; flex-direction:
column but without min-height: 0. The flex item's default
min-height is min-content (its natural content size), so when the
YAML editor's CodeMirror viewport carried many lines, the body
grew to fit the editor instead of letting the editor scroll
internally. The chain ran out of viewport before reaching the
editor's bottom edge; the body's own scroll bottomed out at a
height that still cropped the last few lines.

Adding min-height: 0 lets the body shrink to its flex-allocated
size so CodeMirror's internal scroll takes over correctly. Same
root cause as the standard flex+overflow papercut documented in
half the CSS guides on the internet — fine to add unconditionally,
no other consumers of .preview-pane__body care.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

browse/css/base.css

@@ -26,21 +26,6 @@ body {
 
 /* .hidden lives in shared/base.css; no per-tool override needed. */
 
-/* Status bar — shows transient errors/info */
-.status-bar {
-    padding: 0.4rem 1rem;
-    background: var(--bg-secondary);
-    border-top: 1px solid var(--border);
-    font-size: 0.85rem;
-    color: var(--text-muted);
-    min-height: 1.6rem;
-    line-height: 1.6rem;
-    flex-shrink: 0;
-}
-
-.status-bar--error { color: #b00020; }
-.status-bar--info  { color: var(--primary); }
-
 /* Read-only banner for the YAML editor — surfaced by preview-yaml.js
    when the listing's `writable` bit was false. CodeMirror's readOnly
    mode has no built-in visual signal beyond the disabled caret, so a

browse/css/tree.css

@@ -244,6 +244,11 @@ body {
 
 .preview-pane__body {
     flex: 1;
+    min-height: 0;          /* critical: lets the flex child shrink to fit
+                               the viewport instead of growing to its
+                               content's natural size (which clips the
+                               YAML editor's bottom when there are many
+                               lines, even with the editor's own scroll) */
     overflow: auto;
     display: flex;
     flex-direction: column;
@@ -575,21 +580,6 @@ body {
     color: var(--text-muted);
 }
 
-/* ── Status bar ──────────────────────────────────────────────────────────── */
-
-.status-bar {
-    padding: 0.4rem 1rem;
-    background: var(--bg-secondary);
-    border-top: 1px solid var(--border);
-    font-size: 0.8rem;
-    color: var(--text-muted);
-    min-height: 1.6rem;
-    flex-shrink: 0;
-}
-
-.status-bar.is-error { color: var(--danger); }
-.status-bar.is-info  { color: var(--text); }
-
 /* ── Markdown plugin (right-pane internals when a .md is selected) ──────── */
 /* CSS-Grid shell mirroring mdedit's layout: sidebar on the LEFT
    (front matter top + TOC bottom), content on the RIGHT (informational

browse/js/events.js

@@ -10,18 +10,21 @@
     // call time, not at IIFE-eval time.
     function previewMod() { return window.app.modules.preview; }
 
+    // Notifications route through the shared toast helper (shared/
+    // toast.js) — there's no persistent footer strip in browse. Same
+    // signatures as before so the 70+ existing call sites work
+    // unchanged; statusClear is a no-op (toasts fade on their own and
+    // single-toast policy guarantees only the latest is visible).
     function status(msg, kind) {
-        var el = document.getElementById('statusBar');
-        if (!el) return;
-        el.textContent = msg || '';
-        el.classList.remove('status-bar--error', 'status-bar--info');
-        if (kind === 'error') el.classList.add('status-bar--error');
-        if (kind === 'info')  el.classList.add('status-bar--info');
+        if (!msg) return;
+        if (!window.zddc || typeof window.zddc.toast !== 'function') return;
+        var level = kind === 'error' ? 'error' : 'info';
+        window.zddc.toast(msg, level);
     }
 
     function statusError(msg) { status(msg, 'error'); }
     function statusInfo(msg)  { status(msg, 'info'); }
-    function statusClear()    { status('', null); }
+    function statusClear()    { /* no-op — toasts fade on their own */ }
 
     async function pickLocalDir() {
         if (typeof window.showDirectoryPicker !== 'function') {

browse/js/plan-review.js

@@ -32,19 +32,17 @@
     var REVIEW_OFFSET_DAYS = 7;
     var RESPONSE_OFFSET_DAYS = 14;
 
+    // Notifications go through the shared toast helper — there's no
+    // persistent footer strip in browse anymore.
     function statusInfo(msg) {
-        var el = document.getElementById('statusBar');
-        if (!el) return;
-        el.textContent = msg || '';
-        el.classList.remove('status-bar--error');
-        el.classList.add('status-bar--info');
+        if (msg && window.zddc && typeof window.zddc.toast === 'function') {
+            window.zddc.toast(msg, 'info');
+        }
     }
     function statusError(msg) {
-        var el = document.getElementById('statusBar');
-        if (!el) return;
-        el.textContent = msg || '';
-        el.classList.remove('status-bar--info');
-        el.classList.add('status-bar--error');
+        if (msg && window.zddc && typeof window.zddc.toast === 'function') {
+            window.zddc.toast(msg, 'error');
+        }
     }
 
     // Compute today + N days as a YYYY-MM-DD string.

browse/template.html

@@ -98,8 +98,6 @@
         </div>
     </main>
 
-    <div id="statusBar" class="status-bar"></div>
-
     <!-- Help Panel -->
     <aside id="help-panel" class="help-panel" hidden aria-labelledby="help-panel-title">
         <div class="help-panel__header">