Revert "refactor: move tasks into bundled plugin"

This reverts commit c75f4695b7.

test/helpers/plugins/plugin-api.ts

@@ -31,7 +31,6 @@ export function createTestPluginApi(api: TestPluginApiInput): OpenClawPluginApi
     registerMemoryFlushPlan() {},
     registerMemoryRuntime() {},
     registerMemoryEmbeddingProvider() {},
-    registerOperationsRuntime() {},
     resolvePath(input: string) {
       return input;
     },

test/helpers/plugins/plugin-runtime-mock.ts

@@ -132,36 +132,6 @@ export function createPluginRuntimeMock(overrides: DeepPartial<PluginRuntime> =
     stt: {
       transcribeAudioFile: vi.fn() as unknown as PluginRuntime["stt"]["transcribeAudioFile"],
     },
-    operations: {
-      dispatch: vi.fn().mockResolvedValue({
-        matched: false,
-        record: null,
-      }) as unknown as PluginRuntime["operations"]["dispatch"],
-      getById: vi.fn().mockResolvedValue(null) as unknown as PluginRuntime["operations"]["getById"],
-      findByRunId: vi
-        .fn()
-        .mockResolvedValue(null) as unknown as PluginRuntime["operations"]["findByRunId"],
-      list: vi.fn().mockResolvedValue([]) as unknown as PluginRuntime["operations"]["list"],
-      summarize: vi.fn().mockResolvedValue({
-        total: 0,
-        active: 0,
-        terminal: 0,
-        failures: 0,
-        byNamespace: {},
-        byKind: {},
-        byStatus: {},
-      }) as unknown as PluginRuntime["operations"]["summarize"],
-      audit: vi.fn().mockResolvedValue([]) as unknown as PluginRuntime["operations"]["audit"],
-      maintenance: vi.fn().mockResolvedValue({
-        reconciled: 0,
-        cleanupStamped: 0,
-        pruned: 0,
-      }) as unknown as PluginRuntime["operations"]["maintenance"],
-      cancel: vi.fn().mockResolvedValue({
-        found: false,
-        cancelled: false,
-      }) as unknown as PluginRuntime["operations"]["cancel"],
-    },
     channel: {
       text: {
         chunkByNewline: vi.fn((text: string) => (text ? [text] : [])),