fix(deps): make SeekDB optional for native installs

src/langbot/pkg/provider/modelmgr/requesters/seekdbembed.py

@@ -24,7 +24,10 @@ class SeekDBEmbedding(requester.ProviderAPIRequester):
         try:
             import pyseekdb
         except ImportError:
-            raise ImportError('pyseekdb is not installed. Install it with: pip install pyseekdb')
+            raise ImportError(
+                "SeekDB support is not installed. Install LangBot with the 'seekdb' extra: "
+                "uv sync --extra seekdb (source) or uvx --from 'langbot[seekdb]@latest' langbot (PyPI)."
+            )
 
         self._embedding_function = pyseekdb.get_default_embedding_function()
 

src/langbot/pkg/vector/vdbs/seekdb.py

@@ -42,7 +42,10 @@ class SeekDBVectorDatabase(VectorDatabase):
 
     def __init__(self, ap: app.Application):
         if not SEEKDB_AVAILABLE:
-            raise ImportError('pyseekdb is not installed. Install it with: pip install pyseekdb')
+            raise ImportError(
+                "SeekDB support is not installed. Install LangBot with the 'seekdb' extra: "
+                "uv sync --extra seekdb (source) or uvx --from 'langbot[seekdb]@latest' langbot (PyPI)."
+            )
 
         self.ap = ap
         config = self.ap.instance_config.data['vdb']['seekdb']

src/langbot/templates/config.yaml

@@ -181,6 +181,11 @@ vdb:
         host: localhost
         port: 6333
         api_key: ''
+    # SeekDB is optional. Native/package installs need the `seekdb` extra:
+    # `uv sync --extra seekdb` (source) or
+    # `uvx --from 'langbot[seekdb]@latest' langbot` (PyPI).
+    # The official Docker image already includes it.
+    # Embedded-mode platform support depends on the native pylibseekdb wheels.
     seekdb:
         mode: embedded  # 'embedded' or 'server'
         # Embedded mode options: