fix(dashboard-tests): green Full Suite after chat tags, TaskForm meta, remote lifecycle

- Replace undefined --space-2xs in ChatView tag menu with calc(--space-xs / 2)
- Stub fetchChatTags/create/rename/delete on streaming-thread api mock for useChat mount
- Expect TaskForm model/tracking callbacks with TaskFormValueChangeMeta source
- Drive remote tunnel lifecycle via one stop then error status (no double Stop race)

packages/dashboard/app/components/ChatView.css

@@ -2788,5 +2788,10 @@ Queued-message banners stack above the composer input with a capped scroll area,
 .chat-tag-create-row .input { min-width: 0; }
 @media (max-width: 768px) {
   .chat-session-tags { max-height: calc(var(--space-lg) * 2); }
-  .chat-tag-menu-item { gap: var(--space-2xs); }
+  /*
+  FNXC:ChatTags 2026-07-24-23:05:
+  Compact mobile tag-menu gap must use a defined token. --space-2xs is intentionally
+  undefined (space-token-defined hygiene); half of --space-xs matches the prior intent.
+  */
+  .chat-tag-menu-item { gap: calc(var(--space-xs) / 2); }
 }

packages/dashboard/app/components/__tests__/ChatView.streaming-thread.test.tsx

@@ -16,6 +16,12 @@ vi.mock("../../sse-bus", () => ({
   subscribeSse: vi.fn(() => () => {}),
 }));
 
+/*
+FNXC:ChatTags 2026-07-24-23:05:
+useChat loads tags on mount via fetchChatTags/createChatTag/renameChatTag/deleteChatTag.
+Partial ../../api factories must stub those exports or CI fails with
+"No fetchChatTags export is defined on the mock" once tag APIs ship.
+*/
 vi.mock("../../api", () => ({
   fetchSettings: vi.fn().mockResolvedValue({}),
   fetchChatSessions: vi.fn(),
@@ -27,6 +33,10 @@ vi.mock("../../api", () => ({
   streamChatResponse: vi.fn(),
   attachChatStream: vi.fn(),
   cancelChatResponse: vi.fn(),
+  fetchChatTags: vi.fn().mockResolvedValue({ tags: [] }),
+  createChatTag: vi.fn().mockResolvedValue({ tag: { id: "tag-1", name: "t", createdAt: "2026-04-08T00:00:00.000Z" } }),
+  renameChatTag: vi.fn().mockResolvedValue({ tag: { id: "tag-1", name: "t", createdAt: "2026-04-08T00:00:00.000Z" } }),
+  deleteChatTag: vi.fn().mockResolvedValue({ success: true }),
   fetchAgents: vi.fn().mockResolvedValue([
     { id: "agent-001", name: "Alpha", role: "executor", state: "idle", icon: undefined, createdAt: "2026-04-08T00:00:00.000Z", updatedAt: "2026-04-08T00:00:00.000Z", metadata: {} },
   ]),

packages/dashboard/app/components/__tests__/SettingsModal.remote-notifications.test.tsx

@@ -587,11 +587,17 @@ describe("SettingsModal", () => {
     });
 
     it("shows lifecycle state changes for start and stop actions, including error state", async () => {
+      /*
+      FNXC:SettingsRemote 2026-07-24-23:05:
+      Full Suite flake: a second Stop Tunnel click races loadRemoteData after the first stop.
+      Product UI only shows Stop while state is running/starting; after stop refresh returns
+      error, the control is Start Tunnel. Drive start → running → one stop → error message
+      instead of double-stop, and keep running stable across start-poll ticks.
+      */
       mockFetchRemoteStatus
         .mockResolvedValueOnce({ provider: null, state: "stopped", url: null, lastError: null })
         .mockResolvedValueOnce({ provider: "tailscale", state: "starting", url: null, lastError: null })
-        .mockResolvedValueOnce({ provider: "tailscale", state: "running", url: "https://tail.example", lastError: null })
-        .mockResolvedValueOnce({ provider: "tailscale", state: "error", url: null, lastError: "Tunnel crashed" });
+        .mockResolvedValue({ provider: "tailscale", state: "running", url: "https://tail.example", lastError: null });
 
       await renderModalSection("remote", "Remote Access");
 
@@ -607,15 +613,18 @@ describe("SettingsModal", () => {
 
       expect(await screen.findByRole("button", { name: "Stop Tunnel" })).toBeInTheDocument();
 
+      mockFetchRemoteStatus.mockResolvedValue({
+        provider: "tailscale",
+        state: "error",
+        url: null,
+        lastError: "Tunnel crashed",
+      });
       await settingsModalUser.click(screen.getByRole("button", { name: "Stop Tunnel" }));
       await waitFor(() => {
         expect(mockStopRemoteTunnel).toHaveBeenCalledTimes(1);
       });
-      await settingsModalUser.click(screen.getByRole("button", { name: "Stop Tunnel" }));
-      await waitFor(() => {
-        expect(mockStopRemoteTunnel).toHaveBeenCalledTimes(2);
-      });
       expect(await screen.findByText("Tunnel crashed")).toBeInTheDocument();
+      expect(screen.getByRole("button", { name: "Start Tunnel" })).toBeInTheDocument();
     });
 
     it("shows external tunnel panel with actions when external tunnel is detected", async () => {

packages/dashboard/app/components/__tests__/TaskForm.test.tsx

@@ -1038,8 +1038,9 @@ describe("TaskForm preset selection (FN-819)", () => {
 
     expect(onPresetModeChange).toHaveBeenCalledWith("preset");
     expect(onSelectedPresetIdChange).toHaveBeenCalledWith("fast");
-    expect(onExecutorModelChange).toHaveBeenCalledWith("anthropic/claude-sonnet-4-5");
-    expect(onValidatorModelChange).toHaveBeenCalledWith("openai/gpt-4o");
+    // FNXC:TaskForm 2026-07-24-23:05: model/preset handlers pass TaskFormValueChangeMeta so NewTaskModal can ignore initialization seeds vs user picks.
+    expect(onExecutorModelChange).toHaveBeenCalledWith("anthropic/claude-sonnet-4-5", { source: "user" });
+    expect(onValidatorModelChange).toHaveBeenCalledWith("openai/gpt-4o", { source: "user" });
   });
 
   it("switching to default clears preset and model overrides", async () => {
@@ -1080,8 +1081,8 @@ describe("TaskForm preset selection (FN-819)", () => {
 
     expect(onPresetModeChange).toHaveBeenCalledWith("default");
     expect(onSelectedPresetIdChange).toHaveBeenCalledWith("");
-    expect(onExecutorModelChange).toHaveBeenCalledWith("");
-    expect(onValidatorModelChange).toHaveBeenCalledWith("");
+    expect(onExecutorModelChange).toHaveBeenCalledWith("", { source: "user" });
+    expect(onValidatorModelChange).toHaveBeenCalledWith("", { source: "user" });
   });
 
   it("switching to custom clears preset ID", async () => {
@@ -1564,7 +1565,8 @@ describe("TaskForm focus behavior (FN-1459)", () => {
       });
 
       await waitFor(() => {
-        expect(onGithubTrackingEnabledChange).toHaveBeenCalledWith(true);
+        // FNXC:TaskForm 2026-07-24-23:05: settings-default seed marks source initialization so create flow can avoid treating it as a user edit.
+        expect(onGithubTrackingEnabledChange).toHaveBeenCalledWith(true, { source: "initialization" });
       });
     });