feat: refine workbench chrome (#761)

* docs: define product and design direction

* style: establish restrained workbench primitives

* refactor: declutter board and task topbars

* style: align dockview panel chrome

* fix: align task topbar vcs control sizing

* refactor: surface integrations navigation

* fix: repair integrations and task creation workflow

* refactor: include linear in integrations navigation

* style: restore familiar workbench tones

* fix: add dockview tab breathing room

* fix: show configured integration shortcuts

* fix: hover open integrations menu

* fix: stabilize integrations hover menu

* fix: align home and dockview topbars

* fix: normalize home topbar controls

* fix: compact home topbar height

* fix: simplify home chrome and split buttons

* fix: move integrations to left chrome

* fix: restore home stats shortcut

* fix: add dockview tab breathing room

* fix: border home stats button

* fix: streamline dockview topbar actions

* fix: align task split button seam

* fix: address review feedback

* fix: restore topbar e2e affordances

* fix: stabilize workflow e2e isolation

* fix: add task topbar action overflow

* fix: address PR review feedback

apps/web/app/dockview-theme.css

@@ -1,30 +1,23 @@
-/* Dockview theme — Mux-inspired pill tabs */
+/* Dockview workbench chrome */
 
 .dockview-theme-kandev {
-  /* Overall dockview bg (visible in gaps between groups) — match card to eliminate visible gaps */
   --dv-background-color: var(--card);
-
-  /* Each group panel area */
   --dv-group-view-background-color: var(--background);
 
-  /* Separator / sash */
   --dv-separator-border: var(--border);
   --dv-active-sash-color: var(--primary);
   --dv-paneview-header-border-color: var(--border);
 
-  /* Tab bar — #171717 bg, matching panel content */
   --dv-tabs-and-actions-container-font-size: 12px;
+  --dv-tabs-and-actions-container-height: 40px;
   --dv-tabs-and-actions-container-background-color: var(--background);
 
-  /* Active group, selected tab — #2a2a2a pill */
   --dv-activegroup-visiblepanel-tab-background-color: var(--muted);
   --dv-activegroup-visiblepanel-tab-color: var(--foreground);
 
-  /* Active group, unselected tab — transparent */
   --dv-activegroup-hiddenpanel-tab-background-color: transparent;
   --dv-activegroup-hiddenpanel-tab-color: var(--muted-foreground);
 
-  /* Inactive group tabs — more dimmed */
   --dv-inactivegroup-visiblepanel-tab-background-color: color-mix(
     in srgb,
     var(--muted) 100%,
@@ -42,48 +35,38 @@
     transparent
   );
 
-  /* Close icon */
   --dv-tab-close-icon: var(--muted-foreground);
-
-  /* Misc */
   --dv-tabs-container-scrollbar-color: var(--scrollbar-thumb);
   --dv-drag-over-background-color: color-mix(in oklab, var(--primary) 10%, transparent);
   --dv-drag-over-border-color: var(--primary);
 }
 
-/* ── Inactive group tab bar dimming ── */
-.dockview-theme-kandev .inactive-group .dv-tabs-and-actions-container {
-  /* opacity: 0.6; */
-}
-
-/* ── Tab bar container ── */
 .dockview-theme-kandev .dv-tabs-and-actions-container {
   background: var(--background);
   border-bottom: 1px solid var(--border);
-  min-height: 34px;
-  height: 34px;
-  padding: 0 6px;
+  min-height: 40px;
+  height: 40px;
+  padding: 7px 5px 5px;
   align-items: center;
 }
 
-/* Remove tab divider separators */
 .dockview-theme-kandev .dv-tabs-container.dv-horizontal .dv-tab::before {
   display: none !important;
 }
 
-/* ── Individual tabs — pill style ── */
 .dockview-theme-kandev .dv-tab {
   padding: 0;
-  margin: 0 2px;
+  margin: 0 1px;
   font-size: 12px;
   font-weight: 500;
   min-width: auto;
-  border-radius: 6px;
+  border-radius: 5px;
   border-bottom: none !important;
-  outline: none !important;
+  outline: none;
   transition:
     background-color 0.15s ease,
     color 0.15s ease;
+  cursor: pointer;
 }
 
 .dockview-theme-kandev .dv-tab:hover {
@@ -91,28 +74,38 @@
   color: var(--foreground);
 }
 
-/* Active tab — filled pill, no underline */
 .dockview-theme-kandev .dv-active-tab {
   border-bottom: none !important;
 }
 
-/* ── Default tab (built-in with close button) ── */
+.dockview-theme-kandev .dv-tab:focus-within,
+.dockview-theme-kandev .dv-tab:focus-visible {
+  box-shadow:
+    inset 0 0 0 1px var(--ring),
+    0 0 0 1px color-mix(in oklab, var(--ring) 20%, transparent);
+}
+
 .dockview-theme-kandev .dv-default-tab {
   font-size: 12px;
   font-weight: 500;
-  padding: 2px 6px;
-  gap: 6px;
+  padding: 0 7px;
+  gap: 5px;
+  height: 24px;
+  line-height: 1;
 }
 
-/* Close button — show on hover and active */
 .dockview-theme-kandev .dv-default-tab .dv-default-tab-action {
   opacity: 0;
-  transition: opacity 0.15s ease;
-  border-radius: 3px;
+  transition:
+    opacity 0.15s ease,
+    background-color 0.15s ease,
+    color 0.15s ease;
+  border-radius: 4px;
   padding: 2px;
   display: flex;
   align-items: center;
   justify-content: center;
+  cursor: pointer;
 }
 
 .dockview-theme-kandev .dv-default-tab .dv-default-tab-action .dv-svg {
@@ -122,6 +115,12 @@
 
 .dockview-theme-kandev .dv-default-tab .dv-default-tab-action:hover {
   background: color-mix(in srgb, var(--foreground) 12%, transparent);
+  color: var(--foreground);
+}
+
+.dockview-theme-kandev .dv-default-tab .dv-default-tab-action:focus-visible {
+  outline: 1px solid var(--ring);
+  outline-offset: 1px;
 }
 
 .dockview-theme-kandev .dv-tab:hover .dv-default-tab .dv-default-tab-action,
@@ -129,12 +128,10 @@
   opacity: 1;
 }
 
-/* ── Panel content ── */
 .dockview-theme-kandev .dv-content-container {
   background: var(--card);
 }
 
-/* Strip all chrome from session panel wrappers inside dockview */
 .dockview-theme-kandev .dv-content-container .session-panel-content-wrapper {
   border-radius: 0 !important;
   box-shadow: none !important;
@@ -147,7 +144,6 @@
   margin: 0 !important;
 }
 
-/* ── Sash (resize handle) ── */
 .dockview-theme-kandev .dv-resize-container > .sash-container .sash {
   background: transparent;
   transition: background-color 0.15s ease;
@@ -158,43 +154,49 @@
   background: var(--primary);
 }
 
-/* Hide close button on tabs in locked groups (sidebar) */
 .dockview-theme-kandev .dv-locked-groupview .dv-default-tab .dv-default-tab-action {
   display: none !important;
 }
 
-/* ── Left header actions (after last tab — "+" button) ── */
 .dockview-theme-kandev .dv-left-actions-container {
   display: flex;
   align-items: center;
-  padding-left: 4px;
+  padding-left: 3px;
   gap: 2px;
 }
 
-.dv-tab:focus-within:after,
-.dv-tab:focus:after {
+.dockview-theme-kandev .dv-tab:focus-within::after,
+.dockview-theme-kandev .dv-tab:focus::after {
   outline: none !important;
 }
 
-/* ── Right header actions ── */
 .dockview-theme-kandev .dv-right-actions-container {
   display: flex;
   align-items: center;
-  padding-right: 4px;
+  padding-right: 3px;
   gap: 2px;
 }
 
-/* ── Void container (spacer between left-actions and right-actions) ── */
+.dockview-theme-kandev .dv-left-actions-container button,
+.dockview-theme-kandev .dv-right-actions-container button {
+  border-radius: 5px;
+  cursor: pointer;
+}
+
+.dockview-theme-kandev .dv-left-actions-container button:focus-visible,
+.dockview-theme-kandev .dv-right-actions-container button:focus-visible {
+  outline: 1px solid var(--ring);
+  outline-offset: 1px;
+}
+
 .dockview-theme-kandev .dv-void-container {
   flex: 1;
 }
 
-/* ── Watermark (empty group) ── */
 .dockview-theme-kandev .dv-watermark {
   background: transparent;
 }
 
-/* ── Drop target overlay ── */
 .dockview-theme-kandev .drop-target-dropzone > .drop-target-selection {
   border: 2px solid var(--primary);
   background: color-mix(in oklab, var(--primary) 8%, transparent);