feat(web): equal-width project cards, drop worktree counters

Project boxes now use a fixed two-column grid so every card is the
same width. The worktree count line is removed — the information
lives in the worktree picker that follows a project selection.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

web/src/spawnForm.ts

@@ -680,16 +680,13 @@ export function createSpawnForm(opts: SpawnFormOptions): SpawnFormHandle {
     box.type = "button";
     box.className = `project-box${isStale(project, new Date()) ? " is-stale" : ""}`;
     box.dataset.cwd = project.path;
-    const trees = worktreesOf(group).length;
     // The parent directory only — the last segment is the name line above it.
     // Unabbreviated beyond `~`, since the stem is what tells two projects
     // sharing a basename apart (#95).
     const parent = abbreviateCwd(parentDir(project.path), homeDir);
-    const meta = trees > 0 ? `${trees} worktree${trees === 1 ? "" : "s"}` : "";
     box.innerHTML = `
       <span class="project-name">${escapeHtml(project.name)}</span>
-      <span class="project-path">${escapeHtml(parent)}</span>
-      <span class="project-meta">${escapeHtml(meta)}</span>`;
+      <span class="project-path">${escapeHtml(parent)}</span>`;
     box.addEventListener("click", () => selectProject(group));
     return box;
   }

web/src/structured.ts

@@ -551,19 +551,6 @@ export function createStructuredConnection(
           rows.push(delta.row);
         } else {
           rows[i] = delta.row;
-          // Surgical DOM swap: replace just this row's element instead of
-          // tearing down and rebuilding the entire transcript, which causes
-          // visible flashing and breaks text selection.
-          const oldEl = rowEls.get(delta.row.id);
-          if (oldEl) {
-            const newEl = buildRowElement(delta.row);
-            if (newEl) {
-              oldEl.replaceWith(newEl);
-              rowEls.set(delta.row.id, newEl);
-            }
-            syncAvailableCommands();
-            return;
-          }
         }
       } else {
         const i = rowIndex.get(delta.id);

web/src/styles.css

@@ -3749,7 +3749,7 @@ input.leaf-rename:focus {
 
 .picker.projects {
   display: grid;
-  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
+  grid-template-columns: repeat(2, 1fr);
   align-content: start;
   gap: var(--sp-2);
   max-height: 300px;
@@ -3805,19 +3805,6 @@ input.leaf-rename:focus {
   overflow-wrap: anywhere;
 }
 
-.project-meta {
-  font-family: var(--font-mono);
-  font-size: var(--fs-12);
-  color: var(--faint);
-  overflow: hidden;
-  text-overflow: ellipsis;
-  white-space: nowrap;
-}
-
-.project-meta:empty {
-  display: none;
-}
-
 .project-other {
   align-self: flex-start;
   padding: 4px 0;