feat(FN-987): wire AgentStore to TaskExecutor in dashboard command

- Wire AgentStore into TaskExecutor initialization within dashboard.ts startup
- Add AgentStore mock to dashboard command tests for proper test coverage
- Update test mocks to reflect new AgentStore dependency injection

packages/cli/src/commands/__tests__/dashboard.test.ts

@@ -19,6 +19,7 @@ function makeMockStore() {
       openrouterModelSync: true,
     }),
     listTasks: vi.fn().mockResolvedValue([]),
+    getFusionDir: vi.fn().mockReturnValue("/tmp/test/.fusion"),
     on: vi.fn((event: string, handler: (...args: unknown[]) => void) => {
       emitter.on(event, handler);
     }),
@@ -38,6 +39,14 @@ vi.mock("@fusion/core", () => ({
     listSchedules: vi.fn().mockResolvedValue([]),
     getDueSchedules: vi.fn().mockResolvedValue([]),
   })),
+  AgentStore: vi.fn().mockImplementation(() => ({
+    init: vi.fn().mockResolvedValue(undefined),
+    createAgent: vi.fn(),
+    updateAgentState: vi.fn(),
+    listAgents: vi.fn().mockResolvedValue([]),
+    getAgent: vi.fn().mockResolvedValue(null),
+    deleteAgent: vi.fn(),
+  })),
 }));
 
 // ── Mock @fusion/dashboard ─────────────────────────────────────────────

packages/cli/src/commands/dashboard.test.ts

@@ -51,6 +51,7 @@ function makeMockStore() {
     updatePrInfo: vi.fn().mockResolvedValue({}),
     logEntry: vi.fn().mockResolvedValue(undefined),
     updateTask: vi.fn().mockResolvedValue({}),
+    getFusionDir: vi.fn().mockReturnValue("/tmp/test/.fusion"),
     close: vi.fn(),
     on: vi.fn((event: string, handler: (...args: unknown[]) => void) => {
       emitter.on(event, handler);
@@ -76,6 +77,14 @@ vi.mock("@fusion/core", () => ({
     recordRun: vi.fn().mockResolvedValue({}),
     getDueSchedules: vi.fn().mockResolvedValue([]),
   })),
+  AgentStore: vi.fn().mockImplementation(() => ({
+    init: vi.fn().mockResolvedValue(undefined),
+    createAgent: vi.fn(),
+    updateAgentState: vi.fn(),
+    listAgents: vi.fn().mockResolvedValue([]),
+    getAgent: vi.fn().mockResolvedValue(null),
+    deleteAgent: vi.fn(),
+  })),
   getTaskMergeBlocker: vi.fn((task: any) => {
     if (task.column !== "in-review") return `task is in '${task.column}', must be in 'in-review'`;
     if (task.paused) return "task is paused";

packages/cli/src/commands/dashboard.ts

@@ -1,7 +1,7 @@
 import { execSync } from "node:child_process";
 import type { AddressInfo } from "node:net";
 import { createInterface } from "node:readline";
-import { TaskStore, AutomationStore, CentralCore, getTaskMergeBlocker } from "@fusion/core";
+import { TaskStore, AutomationStore, CentralCore, AgentStore, getTaskMergeBlocker } from "@fusion/core";
 import type { Settings, TaskDetail, PrInfo } from "@fusion/core";
 import { createServer, GitHubClient } from "@fusion/dashboard";
 import { TriageProcessor, TaskExecutor, Scheduler, AgentSemaphore, WorktreePool, aiMergeTask, UsageLimitPauser, PRIORITY_MERGE, scanIdleWorktrees, cleanupOrphanedWorktrees, NtfyNotifier, PrMonitor, PrCommentHandler, CronRunner, StuckTaskDetector, SelfHealingManager } from "@fusion/engine";
@@ -207,6 +207,15 @@ export async function runDashboard(port: number, opts: { paused?: boolean; dev?:
   const automationStore = new AutomationStore(cwd);
   await automationStore.init();
 
+  // ── AgentStore: agent lifecycle tracking ──────────────────────────
+  //
+  // Tracks spawned agents so they appear in the dashboard's Agents view
+  // and are properly managed throughout their lifecycle (creation, state
+  // transitions, termination). Passed to TaskExecutor for agent spawning.
+  //
+  const agentStore = new AgentStore({ rootDir: store.getFusionDir() });
+  await agentStore.init();
+
   // ── NtfyNotifier: push notifications for task completion and failures ─
   //
   // Resolve the project ID from the central registry so that notification
@@ -598,6 +607,7 @@ export async function runDashboard(port: number, opts: { paused?: boolean; dev?:
       pool,
       usageLimitPauser,
       stuckTaskDetector,
+      agentStore,
       onStart: (t, p) => console.log(`[engine] Executing ${t.id} in ${p}`),
       onComplete: (t) => console.log(`[engine] ✓ ${t.id} → in-review`),
       onError: (t, e) => console.log(`[engine] ✗ ${t.id}: ${e.message}`),