feat(FN-1111): merge fusion/fn-1111 (auto-resolved)

- docs(FN-1111): complete Step 8 - plugin system documentation
- feat(FN-1111): complete Step 7 - testing and build fixes
- feat(FN-1111): complete Step 6 - export plugin types from core
- feat(FN-1111): complete Step 5 - plugin SDK package
- feat(FN-1111): complete Step 4 - plugin loader with lifecycle management
- feat(FN-1111): complete Step 3 - plugin store with CRUD
- feat(FN-1111): complete Step 2 - add plugins table schema migration
- feat(FN-1111): complete Step 1 - plugin type definitions

packages/core/src/index.ts

@@ -43,6 +43,33 @@ export { AUTOMATION_PRESETS, MAX_RUN_HISTORY } from "./automation.js";
 export type { ScheduleType, ScheduledTask, ScheduledTaskCreateInput, ScheduledTaskUpdateInput, AutomationRunResult, AutomationStepType, AutomationStep, AutomationStepResult } from "./automation.js";
 export { AutomationStore } from "./automation-store.js";
 export type { AutomationStoreEvents } from "./automation-store.js";
+
+// ── Plugin System ─────────────────────────────────────────────────────
+export type {
+  PluginManifest,
+  PluginSettingSchema,
+  PluginSettingType,
+  PluginOnLoad,
+  PluginOnUnload,
+  PluginOnTaskCreated,
+  PluginOnTaskMoved,
+  PluginOnTaskCompleted,
+  PluginOnError,
+  PluginToolDefinition,
+  PluginToolResult,
+  PluginRouteDefinition,
+  PluginRouteMethod,
+  PluginContext,
+  PluginLogger,
+  FusionPlugin,
+  PluginState,
+  PluginInstallation,
+} from "./plugin-types.js";
+export { validatePluginManifest } from "./plugin-types.js";
+export { PluginStore } from "./plugin-store.js";
+export type { PluginStoreEvents, PluginRegistrationInput, PluginUpdateInput } from "./plugin-store.js";
+export { PluginLoader } from "./plugin-loader.js";
+export type { PluginLoaderOptions } from "./plugin-loader.js";
 export {
   BackupManager,
   createBackupManager,