feat(plugins): consolidate official plugins with independent releases (LANG-180) (#2797)

Co-authored-by: multica-agent <[email protected]>

plugins/KnowledgeEngine/DifyDatasetsConnector/main.py

@@ -0,0 +1,30 @@
+# Auto generated by LangBot Plugin SDK.
+# Please refer to https://langbot.app/docs/en/plugin/dev/tutor.html for more details.
+from __future__ import annotations
+
+from langbot_plugin.api.definition.plugin import BasePlugin
+
+class DifyDatasetsConnector(BasePlugin):
+
+    async def initialize(self) -> None:
+        # Will be called when plugin is launching
+        pass
+
+    async def on_installation_revoked(self, binding) -> None:
+        """Release process-local state keyed by this binding.
+
+        Dispatched by SDK revisions that implement installation revocation
+        (``BasePlugin.on_installation_revoked``); on langbot-plugin 0.7.4 the
+        hook does not exist and is never called, so older SDKs are unaffected.
+        There is no invocation context, so Host APIs are unavailable: only the
+        in-process lock table and fence cache for this binding are dropped.
+        Persisted fences stay in Host storage and are re-read on the next
+        invocation.
+        """
+        state = getattr(self, 'knowledge_engine_serial_state', None)
+        if state is not None:
+            state.release_binding(binding)
+
+    def __del__(self) -> None:
+        # Will be called when plugin is terminating
+        pass