fix: cell-network name, install error surfacing, health history cleanup

- docker-compose.services.yml: change external network name from
  pic_cell-network to cell-network so store-service compose files can find
  it.  The project-prefixed name was overriding the explicit name: cell-network
  fix in docker-compose.yml when both files were merged by make start.

- service_store.py: normalize docker compose stderr into the error key in
  the 400 response so the Store page shows the actual failure reason instead
  of the generic fallback message.

- app.py: skip health checks for email/calendar/files managers when those
  optional store services are not installed — prevents false Down alerts and
  unnecessary noise in health history.

- Logs.jsx: remove Email/Calendar/Files columns from the health history table;
  they are optional store services, not core builtins that should always appear.

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

api/app.py

@@ -520,8 +520,17 @@ def perform_health_check():
             'alerts': []
         }
 
+        # email/calendar/files are optional store services — only check them when installed
+        _installed_store_ids = set(config_manager.get_installed_services())
+        _OPTIONAL_STORE_MANAGERS = frozenset({'email_manager', 'calendar_manager', 'file_manager'})
+
         # Get health from each service
         for service_name in service_bus.list_services():
+            if service_name in _OPTIONAL_STORE_MANAGERS:
+                # Map manager name to store service id (strip _manager suffix)
+                store_id = service_name.replace('_manager', '')
+                if store_id not in _installed_store_ids:
+                    continue
             try:
                 service = service_bus.get_service(service_name)
                 if hasattr(service, 'health_check'):

api/routes/service_store.py

@@ -62,6 +62,10 @@ def install_service(service_id: str):
         result = _ssm().install(service_id)
         if result.get('ok'):
             return jsonify(result)
+        # Normalize docker compose stderr into the error key so the frontend
+        # can display the actual failure reason rather than a generic message.
+        if not result.get('error') and result.get('stderr'):
+            result = {**result, 'error': result['stderr']}
         return jsonify(result), 400
     except Exception as e:
         logger.error(f'install_service({service_id}): {e}')

docker-compose.services.yml

@@ -3,4 +3,4 @@ services: {}
 networks:
   cell-network:
     external: true
-    name: pic_cell-network
+    name: cell-network

webui/src/pages/Logs.jsx

@@ -392,7 +392,7 @@ function HealthHistoryTab() {
           <table className="min-w-full text-sm">
             <thead>
               <tr className="bg-gray-100">
-                {['Timestamp','Network','WireGuard','Email','Calendar','Files','Routing','Vault','Alerts'].map(h => (
+                {['Timestamp','Network','WireGuard','Routing','Vault','Alerts'].map(h => (
                   <th key={h} className="px-2 py-1 text-left">{h}</th>
                 ))}
               </tr>
@@ -403,9 +403,6 @@ function HealthHistoryTab() {
                   <td className="px-2 py-1 font-mono text-xs">{h.timestamp}</td>
                   <td className="px-2 py-1"><SvcCol data={h.network} /></td>
                   <td className="px-2 py-1"><SvcCol data={h.wireguard} /></td>
-                  <td className="px-2 py-1"><SvcCol data={h.email} /></td>
-                  <td className="px-2 py-1"><SvcCol data={h.calendar} /></td>
-                  <td className="px-2 py-1"><SvcCol data={h.files} /></td>
                   <td className="px-2 py-1"><SvcCol data={h.routing} /></td>
                   <td className="px-2 py-1"><SvcCol data={h.vault} /></td>
                   <td className="px-2 py-1">