M8: list density tokens (scarfGoCompactListRow + scarfGoListDensity)

Apple's default List styling targets Reading/Notes-style apps:
~60pt rows, 10pt inter-row spacing, big vertical padding on
grouped cells. ScarfGo's lists (Memory, Cron, Skills, More,
Dashboard recent sessions) lean information-dense — devs want to
see 4-6 items per screen, not 2.

Two tokens in Scarf iOS/App/Theme/ListDensity.swift:

- `.scarfGoCompactListRow()` — 6pt vertical listRowInsets (down
  from default ~12pt), explicit `.frame(minHeight: 44)` to preserve
  the Apple HIG tap target, and `.contentShape(Rectangle())` so
  rows can shrink below 44pt visually while keeping the full-row
  hit area. ~48pt rows end up net, vs. ~60pt default.
- `.scarfGoListDensity()` — `.listRowSpacing(0)` kills inter-row
  gaps on the whole List, `.defaultMinListRowHeight(36)` sets the
  floor for rows that want to go smaller (e.g. `LabeledContent`).

Applied to Memory, Cron, Skills, Dashboard, MoreTab. No visual
change to Chat (it's not a List — different density patterns for
M8 items 2.4–2.7). Research-backed: Fantastical / GitHub Mobile /
Mona for Mastodon use similar spacing.

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

scarf/Scarf iOS/App/ScarfGoTabRoot.swift

@@ -111,16 +111,19 @@ private struct MoreTab: View {
                 } label: {
                     Label("Cron jobs", systemImage: "clock.arrow.circlepath")
                 }
+                .scarfGoCompactListRow()
                 NavigationLink {
                     SkillsListView(config: config)
                 } label: {
                     Label("Skills", systemImage: "sparkles")
                 }
+                .scarfGoCompactListRow()
                 NavigationLink {
                     SettingsView(config: config)
                 } label: {
                     Label("Settings", systemImage: "gearshape.fill")
                 }
+                .scarfGoCompactListRow()
             }
 
             Section {
@@ -143,6 +146,7 @@ private struct MoreTab: View {
                     .font(.caption)
             }
         }
+        .scarfGoListDensity()
         .navigationTitle("More")
         .navigationBarTitleDisplayMode(.inline)
         .confirmationDialog(

scarf/Scarf iOS/App/Theme/ListDensity.swift

@@ -0,0 +1,33 @@
+import SwiftUI
+
+/// ScarfGo's density tokens. Developer-tool context benefits from
+/// tighter list rows than Apple's ~60pt default — we aim for ~48pt
+/// rows that still meet the 44pt tap-target invariant. Research-
+/// backed (M8 density pass): Fantastical, GitHub Mobile, Mona for
+/// Mastodon use similar spacing.
+public extension View {
+    /// Apply to individual `List` rows to shrink vertical padding
+    /// while keeping the full row hit-target ≥ 44pt. Use this on
+    /// every ScarfGo list that renders more than 3 rows per screen
+    /// (Memory, Cron, Skills, Settings, Dashboard recent sessions,
+    /// More).
+    ///
+    /// Pair with `scarfGoListDensity()` on the containing List to
+    /// tighten inter-section spacing.
+    func scarfGoCompactListRow() -> some View {
+        self
+            .listRowInsets(EdgeInsets(top: 6, leading: 16, bottom: 6, trailing: 16))
+            .contentShape(Rectangle())
+            .frame(minHeight: 44)
+    }
+
+    /// Apply to a `List` to reduce the default minimum row height +
+    /// kill the inter-row spacing iOS 18 injects between rows. Works
+    /// with `.plain` and `.insetGrouped` list styles. Does not affect
+    /// section-header spacing.
+    func scarfGoListDensity() -> some View {
+        self
+            .environment(\.defaultMinListRowHeight, 36)
+            .listRowSpacing(0)
+    }
+}

scarf/Scarf iOS/Cron/CronListView.swift

@@ -48,6 +48,7 @@ struct CronListView: View {
                         } onTap: {
                             editingJob = job
                         }
+                        .scarfGoCompactListRow()
                         .swipeActions(edge: .trailing, allowsFullSwipe: false) {
                             Button(role: .destructive) {
                                 Task { await vm.delete(id: job.id) }
@@ -59,6 +60,7 @@ struct CronListView: View {
                 }
             }
         }
+        .scarfGoListDensity()
         .navigationTitle("Cron jobs")
         .navigationBarTitleDisplayMode(.inline)
         .toolbar {

scarf/Scarf iOS/Dashboard/DashboardView.swift

@@ -87,6 +87,7 @@ struct DashboardView: View {
                 }
 
         }
+        .scarfGoListDensity()
         .navigationTitle(config.displayName)
         .navigationBarTitleDisplayMode(.large)
         .refreshable {

scarf/Scarf iOS/Memory/MemoryListView.swift

@@ -19,13 +19,17 @@ struct MemoryListView: View {
         List {
             Section {
                 memoryRow(.memory, context: ctx)
+                    .scarfGoCompactListRow()
                 memoryRow(.user, context: ctx)
+                    .scarfGoCompactListRow()
                 memoryRow(.soul, context: ctx)
+                    .scarfGoCompactListRow()
             } footer: {
                 Text("MEMORY.md and USER.md live under `~/.hermes/memories/`. SOUL.md lives at `~/.hermes/SOUL.md`.")
                     .font(.caption)
             }
         }
+        .scarfGoListDensity()
         .navigationTitle("Memory")
         .navigationBarTitleDisplayMode(.inline)
     }

scarf/Scarf iOS/Skills/SkillsListView.swift

@@ -54,11 +54,13 @@ struct SkillsListView: View {
                                         .foregroundStyle(.secondary)
                                 }
                             }
+                            .scarfGoCompactListRow()
                         }
                     }
                 }
             }
         }
+        .scarfGoListDensity()
         .navigationTitle("Skills")
         .navigationBarTitleDisplayMode(.inline)
         .overlay {