feat: add scheduled tasks with locale-aware scheduling and safer desktop quit flow (#920)

* feat: keep desktop app running in background when closing last window

Closing last window hides it instead of quitting — sidecar keeps running
Cmd+Q now shows confirmation dialog warning about stopping background processes
Clicking dock icon reopens hidden window or creates a new one

* docs: add scheduled tasks impl plan

* feat: add scheduled tasks runtime, api, and ui

* feat: conditionally confirm desktop quit on risks

* chore: remove scheduled tasks plan doc

* feat: add scheduled tasks runtime and management UI

Add server-side scheduled task runtime with project-backed config persistence
Add task scheduling UI and API integration for creating and editing schedules
Add tests for runtime scheduling behavior and project config validation

* feat: add locale display preferences for scheduled tasks

Add Appearance settings for time format and week start with settings.json persistence
Apply preferences in scheduled task editor for time display and weekday ordering
Rename Thinking level control and disable it when model variants are unavailable

* feat: improve scheduled tasks editor and sidebar action order

Reorder session sidebar header actions to separate creation and management tools
Polish scheduled tasks dialog layout and controls for clearer editing flow

* feat: polish scheduled task editor usability

Improve scheduled task dialog layout for clearer scheduling controls
Refine time and weekday inputs for more intuitive task configuration
Update editor labels and control states for better model variant guidance

* feat: add prompt autocomplete and command-aware scheduled runs

Add @ and / autocomplete support to task, multi-run, and agent manager prompt fields
Fix agent mention selection so subagents can be inserted from @ suggestions
Run scheduled prompts as commands when they match slash commands, with message fallback

packages/web/server/index.js

@@ -56,6 +56,7 @@ import { createOpenCodeResolutionRuntime } from './lib/opencode/opencode-resolut
 import { createBootstrapRuntime } from './lib/opencode/bootstrap-runtime.js';
 import { createSessionRuntime } from './lib/opencode/session-runtime.js';
 import { createOpenCodeWatcherRuntime } from './lib/opencode/watcher.js';
+import { createScheduledTasksRuntime } from './lib/scheduled-tasks/runtime.js';
 import { createServerStartupRuntime } from './lib/opencode/server-startup-runtime.js';
 import { createTunnelWiringRuntime } from './lib/opencode/tunnel-wiring-runtime.js';
 import { createStartupPipelineRuntime } from './lib/opencode/startup-pipeline-runtime.js';
@@ -66,6 +67,7 @@ import { createNotificationTriggerRuntime } from './lib/notifications/runtime.js
 import { createPushRuntime } from './lib/notifications/push-runtime.js';
 import { createNotificationTemplateRuntime } from './lib/notifications/template-runtime.js';
 import { createGracefulShutdownRuntime } from './lib/opencode/shutdown-runtime.js';
+import { createProjectConfigRuntime } from './lib/projects/project-config.js';
 import webPush from 'web-push';
 
 const __filename = fileURLToPath(import.meta.url);
@@ -74,6 +76,7 @@ const __dirname = path.dirname(__filename);
 const DEFAULT_PORT = 3000;
 const DESKTOP_NOTIFY_PREFIX = '[OpenChamberDesktopNotify] ';
 const uiNotificationClients = new Set();
+const uiOpenChamberEventClients = new Set();
 const HEALTH_CHECK_INTERVAL = 15000;
 const SHUTDOWN_TIMEOUT = 10000;
 const MODELS_DEV_API_URL = 'https://models.dev/api.json';
@@ -146,6 +149,7 @@ const sanitizeProjects = (...args) => settingsNormalizationRuntime.sanitizeProje
 
 const OPENCHAMBER_USER_CONFIG_ROOT = path.join(os.homedir(), '.config', 'openchamber');
 const OPENCHAMBER_USER_THEMES_DIR = path.join(OPENCHAMBER_USER_CONFIG_ROOT, 'themes');
+const OPENCHAMBER_PROJECTS_CONFIG_DIR = path.join(OPENCHAMBER_USER_CONFIG_ROOT, 'projects');
 
 const MAX_THEME_JSON_BYTES = 512 * 1024;
 
@@ -313,6 +317,12 @@ const sessionRuntime = createSessionRuntime({
   getNotificationClients: () => uiNotificationClients,
 });
 
+const projectConfigRuntime = createProjectConfigRuntime({
+  fsPromises,
+  path,
+  projectsDirPath: OPENCHAMBER_PROJECTS_CONFIG_DIR,
+});
+
 // HMR-persistent state via globalThis
 // These values survive Vite HMR reloads to prevent zombie OpenCode processes
 const hmrStateRuntime = createHmrStateRuntime({
@@ -754,6 +764,36 @@ const waitForOpenCodeReady = (...args) => openCodeLifecycleRuntime.waitForOpenCo
 const waitForAgentPresence = (...args) => openCodeLifecycleRuntime.waitForAgentPresence(...args);
 const refreshOpenCodeAfterConfigChange = (...args) => openCodeLifecycleRuntime.refreshOpenCodeAfterConfigChange(...args);
 const startHealthMonitoring = () => openCodeLifecycleRuntime.startHealthMonitoring(HEALTH_CHECK_INTERVAL);
+const scheduledTasksRuntime = createScheduledTasksRuntime({
+  projectConfigRuntime,
+  listProjects: async () => {
+    const settings = await readSettingsFromDiskMigrated();
+    return sanitizeProjects(settings?.projects || []);
+  },
+  buildOpenCodeUrl,
+  getOpenCodeAuthHeaders,
+  waitForOpenCodeReady,
+  emitTaskRunEvent: (event) => {
+    for (const client of uiOpenChamberEventClients) {
+      try {
+        writeSseEvent(client, {
+          type: 'openchamber:scheduled-task-ran',
+          properties: {
+            projectId: event.projectID,
+            taskId: event.taskID,
+            ranAt: event.ranAt,
+            status: event.status,
+            ...(event.sessionID ? { sessionId: event.sessionID } : {}),
+          },
+        });
+      } catch {
+        uiOpenChamberEventClients.delete(client);
+      }
+    }
+  },
+  logger: console,
+});
+
 const ensureGlobalWatcherStarted = async () => {
   if (globalWatcherStartPromise) {
     return globalWatcherStartPromise;
@@ -820,6 +860,7 @@ const gracefulShutdownRuntime = createGracefulShutdownRuntime({
     activeTunnelController = value;
   },
   tunnelAuthController,
+  scheduledTasksRuntime,
 });
 
 const gracefulShutdown = (...args) => gracefulShutdownRuntime.gracefulShutdown(...args);
@@ -969,6 +1010,10 @@ async function main(options = {}) {
     getOpenCodeAuthHeaders,
     getOpenCodePort: () => openCodePort,
     buildAugmentedPath,
+    projectConfigRuntime,
+    scheduledTasksRuntime,
+    getOpenChamberEventClients: () => uiOpenChamberEventClients,
+    writeSseEvent,
   });
 
   const startupPipelineResult = await startupPipelineRuntime.run({
@@ -1014,6 +1059,12 @@ async function main(options = {}) {
   });
   terminalRuntime = startupPipelineResult.terminalRuntime;
 
+  try {
+    await scheduledTasksRuntime.start();
+  } catch (error) {
+    console.warn('[ScheduledTasks] Failed to start runtime:', error?.message || error);
+  }
+
   return {
     expressApp: app,
     httpServer: server,