docs: fix Boost API examples and supported-query list

- Correct the Python examples on the Boost search page:
  - Boost.property(...) -> Boost.numeric_property(...) (the .property
    factory does not exist on the client)
  - Boost.blend(...) with multiple conditions now passes them as a list,
    matching the signature Boost.blend(boosts, *, weight, depth); the
    old multi-positional form raised TypeError
- List near-image and near-media among the boost-supported queries.
- Remove the mention of boost on aggregation: the server accepts it over
  gRPC but no client exposes it yet, so it does not belong in the
  client-facing docs.

The corrected snippet was verified end-to-end against Weaviate 1.38.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: g-despot

_includes/code/howto/search.boost.py

@@ -81,7 +81,7 @@
     query="transformer architectures",
     limit=5,
     # highlight-start
-    boost=Boost.property(
+    boost=Boost.numeric_property(
         "likes",
         modifier=Boost.Modifier.LOG1P,
         weight=0.7,
@@ -167,8 +167,10 @@
     limit=5,
     # highlight-start
     boost=Boost.blend(
-        Boost.time_decay("published", origin="now", scale=timedelta(days=30), weight=2.0),
-        Boost.property("likes", modifier=Boost.Modifier.LOG1P, weight=1.0),
+        [
+            Boost.time_decay("published", origin="now", scale=timedelta(days=30), weight=2.0),
+            Boost.numeric_property("likes", modifier=Boost.Modifier.LOG1P, weight=1.0),
+        ],
         weight=0.4,
         depth=200,  # rescore the top 200 vector matches
     ),
@@ -222,8 +224,10 @@
     limit=5,
     # highlight-start
     boost=Boost.blend(
-        Boost.filter(Filter.by_property("category").equal("research"), weight=1.0),
-        Boost.filter(Filter.by_property("draft").equal(True), weight=-2.0),
+        [
+            Boost.filter(Filter.by_property("category").equal("research"), weight=1.0),
+            Boost.filter(Filter.by_property("draft").equal(True), weight=-2.0),
+        ],
         weight=0.3,
     ),
     # highlight-end

docs/weaviate/search/boost.md

@@ -16,7 +16,7 @@ import BoostPreview from '/_includes/feature-notes/boost.mdx';
 
 **Boost** soft-ranks search results — promote or demote matching documents without removing them from the result set. Matching documents move up. Non-matching documents stay in the results but rank lower.
 
-Apply boost to vector, hybrid, BM25, near-text, near-vector, near-object, and aggregate queries.
+Apply boost to vector, hybrid, BM25, near-text, near-vector, near-object, near-image, and near-media queries.
 
 ## How it works