Clean up mesh page (#6)

* Filter mesh page task list to show only supervisor tasks

- Add `isSupervisor` filter to rootTasks filter in TaskList component
- Only supervisor tasks will appear in the mesh page task list
- Regular tasks are now hidden from the main view
- Update empty state messages to reflect supervisor-only filtering
- When clicking a supervisor task, its detail still shows orchestrated tasks

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* Add supervisor task button to workflow board contract cards

- Add supervisorTaskId field to ContractSummary type in backend and frontend
- Update SQL queries in repository.rs to include supervisor_task_id
- Add navigation button (▶) to WorkflowContractCard that links to /mesh/{supervisorTaskId}
- Button only shows when contract has a supervisorTaskId
- Button has tooltip "Open Supervisor Task" and stops propagation to avoid triggering card click

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* Add full task page navigation button to TaskTree rows

Add a hover-visible arrow icon (↗) to each task row in the TaskTree
component that links to the full task page (/tasks/{taskId}). The button:
- Appears on hover using opacity transition
- Stops event propagation to avoid triggering parent onSelect
- Matches existing hover styling patterns with the #75aafc color scheme

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/makima/frontend/src/components/mesh/TaskList.tsx b/makima/frontend/src/components/mesh/TaskList.tsx
index f829b29..80077b6 100644
--- a/makima/frontend/src/components/mesh/TaskList.tsx
+++ b/makima/frontend/src/components/mesh/TaskList.tsx
@@ -95,8 +95,8 @@ export function TaskList({
 
   // Group tasks by contract and filter by status
   const groupedTasks = useMemo(() => {
-    // Separate root tasks (no parent) from subtasks
-    const rootTasks = tasks.filter((t) => !t.parentTaskId);
+    // Separate root tasks (no parent) from subtasks, and only show supervisor tasks
+    const rootTasks = tasks.filter((t) => !t.parentTaskId && t.isSupervisor);
 
     // Filter tasks based on contract status
     const filteredTasks = statusFilter === 'all'
@@ -205,8 +205,8 @@ export function TaskList({
         {totalTasks === 0 ? (
           <div className="text-center text-[#9bc3ff] text-sm font-mono opacity-60 py-8">
             {statusFilter === 'all'
-              ? 'No tasks yet. Create one to start orchestrating Claude Code instances.'
-              : `No ${statusFilter} tasks found.`}
+              ? 'No supervisor tasks yet. Create a contract to start orchestrating tasks.'
+              : `No ${statusFilter} supervisor tasks found.`}
           </div>
         ) : (
           <div>