FN-6066: fix dashboard curated inventory guard

Keep the dashboard curated inventory guard aligned with the current dashboard test surface.

- add the newly required @fusion/core exports to the agent import route test mock
- teach the test inventory script to request file-only vitest listings for dashboard curated checks
- extend the dashboard curated skiplist with the pre-existing chat manager exclusion

Files changed:
 packages/dashboard/src/__tests__/routes-agent-import.test.ts | 3 +++
 scripts/check-test-inventory.mjs                             | 5 +++--
 scripts/lib/dashboard-curated-skiplist.json                  | 4 ++++
 3 files changed, 10 insertions(+), 2 deletions(-)

Fusion-Task-Id: FN-6066

Fusion-Task-Lineage: 51e3c42c-d642-4873-8201-636a420d0991

packages/dashboard/src/__tests__/routes-agent-import.test.ts

@@ -71,11 +71,14 @@ vi.mock("@fusion/core", () => {
     parseCompanyArchive: (...args: unknown[]) => mockParseCompanyArchive(...args),
     parseSingleAgentManifest: (...args: unknown[]) => mockParseSingleAgentManifest(...args),
     prepareAgentCompaniesImport: (...args: unknown[]) => mockPrepareAgentCompaniesImport(...args),
+    CLI_AGENT_ADAPTER_IDS: ["claude-code", "codex", "droid", "pi", "generic"],
+    sanitizeCliAgentSettings: (value: unknown) => value,
     AgentCompaniesParseError: MockAgentCompaniesParseError,
     isEphemeralAgent: (agent: { metadata?: Record<string, unknown> }) =>
       agent?.metadata?.agentKind === "task-worker",
     deterministicGuardLocks: new Map(),
     registerTraitHookImpl: () => {},
+    setTaskCreatedHook: () => {},
   };
 });