fix(ui): permission mode select + remove notification stub (#186, #188) (#190)

- Replace free-text AgentConfig.permissions field with a Select showing
  the four valid modes (default, accept-edits, auto, bypass-permissions)
  so users can't enter invalid strings (#186).
- Delete the non-functional Notifications bell button from Topbar and
  DashboardTopbar; remove the now-unused Bell import (#188).

Closes #186
Closes #188

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/src/renderer/components/DashboardTopbar.tsx

@@ -1,6 +1,6 @@
 import { useQueryClient } from "@tanstack/react-query";
 import { useNavigate } from "@tanstack/react-router";
-import { Bell, Waypoints } from "lucide-react";
+import { Waypoints } from "lucide-react";
 import { useState } from "react";
 import { findProjectOrchestrator } from "../types/workspace";
 import { useWorkspaceQuery, workspaceQueryKey } from "../hooks/useWorkspaceQuery";
@@ -90,9 +90,6 @@ export function DashboardTopbar({ activeTab, projectId, projectLabel = "agent-or
 			</div>
 			<div className="dashboard-app-header__spacer" />
 			<div className="dashboard-app-header__actions">
-				<button aria-label="Notifications" className="dashboard-app-header__icon-btn" style={noDragStyle} type="button">
-					<Bell className="h-[15px] w-[15px]" aria-hidden="true" />
-				</button>
 				{projectId ? (
 					orchestrator ? (
 						<button

frontend/src/renderer/components/ProjectSettingsForm.tsx

@@ -16,6 +16,13 @@ type ProjectConfig = components["schemas"]["ProjectConfig"];
 // default". Kept short — the spawn modal owns the full list.
 const AGENT_OPTIONS = ["claude-code", "codex", "opencode", "amp", "goose", "kiro"] as const;
 
+const PERMISSION_MODE_OPTIONS = [
+	{ value: "default", label: "Default" },
+	{ value: "accept-edits", label: "Accept edits" },
+	{ value: "auto", label: "Auto" },
+	{ value: "bypass-permissions", label: "Bypass permissions" },
+] as const;
+
 const projectQueryKey = (id: string) => ["project", id] as const;
 
 export function ProjectSettingsForm({ projectId }: { projectId: string }) {
@@ -67,6 +74,7 @@ function SettingsBody({ project, projectId, onSaved }: { project: Project; proje
 		workerAgent: config.worker?.agent ?? "",
 		orchestratorAgent: config.orchestrator?.agent ?? "",
 		model: config.agentConfig?.model ?? "",
+		permissions: config.agentConfig?.permissions ?? "",
 	});
 	const [savedAt, setSavedAt] = useState<number | null>(null);
 
@@ -80,7 +88,11 @@ function SettingsBody({ project, projectId, onSaved }: { project: Project; proje
 				sessionPrefix: form.sessionPrefix || undefined,
 				worker: blankToUndefined({ ...config.worker, agent: form.workerAgent || undefined }),
 				orchestrator: blankToUndefined({ ...config.orchestrator, agent: form.orchestratorAgent || undefined }),
-				agentConfig: blankToUndefined({ ...config.agentConfig, model: form.model || undefined }),
+				agentConfig: blankToUndefined({
+					...config.agentConfig,
+					model: form.model || undefined,
+					permissions: form.permissions || undefined,
+				}),
 			};
 			const { error } = await apiClient.PUT("/api/v1/projects/{id}/config", {
 				params: { path: { id: projectId } },
@@ -163,6 +175,12 @@ function SettingsBody({ project, projectId, onSaved }: { project: Project; proje
 							placeholder="(agent default)"
 						/>
 					</Field>
+					<Field label="Permission mode">
+						<PermissionModeSelect
+							value={form.permissions}
+							onChange={(v) => setForm((f) => ({ ...f, permissions: v }))}
+						/>
+					</Field>
 				</CardContent>
 			</Card>
 
@@ -183,6 +201,24 @@ function SettingsBody({ project, projectId, onSaved }: { project: Project; proje
 	);
 }
 
+function PermissionModeSelect({ value, onChange }: { value: string; onChange: (value: string) => void }) {
+	return (
+		<Select value={value || "__default__"} onValueChange={(v) => onChange(v === "__default__" ? "" : v)}>
+			<SelectTrigger className="h-8 w-full text-[13px]">
+				<SelectValue />
+			</SelectTrigger>
+			<SelectContent>
+				<SelectItem value="__default__">Project default</SelectItem>
+				{PERMISSION_MODE_OPTIONS.map((opt) => (
+					<SelectItem key={opt.value} value={opt.value}>
+						{opt.label}
+					</SelectItem>
+				))}
+			</SelectContent>
+		</Select>
+	);
+}
+
 function AgentSelect({ value, onChange }: { value: string; onChange: (value: string) => void }) {
 	// "" sentinel → daemon default; Select can't hold an empty value, so map it.
 	return (

frontend/src/renderer/components/Topbar.tsx

@@ -1,4 +1,4 @@
-import { Bell, GitBranch, LayoutGrid, PanelRightClose, PanelRightOpen, Waypoints } from "lucide-react";
+import { GitBranch, LayoutGrid, PanelRightClose, PanelRightOpen, Waypoints } from "lucide-react";
 import { type WorkbenchView, useUiStore } from "../stores/ui-store";
 import type { WorkerDisplayStatus, WorkspaceSession } from "../types/workspace";
 import { workerDisplayStatus } from "../types/workspace";
@@ -68,10 +68,6 @@ export function Topbar({ view, session, projectLabel, onOpenBoard }: TopbarProps
 			<div className="dashboard-app-header__spacer" />
 
 			<div className="dashboard-app-header__actions">
-				{/* Bell leads the actions row, as in AO's SessionDetailHeader. */}
-				<button aria-label="Notifications" className="dashboard-app-header__icon-btn" style={noDragStyle} type="button">
-					<Bell className="h-[15px] w-[15px]" aria-hidden="true" />
-				</button>
 				<button
 					aria-label={view === "orchestrator" ? "Open Kanban" : "Back to board"}
 					className="dashboard-app-header__primary-btn"