Release 0.15.1

@query-farm/flechette 2.4.0 -> 2.4.1, which fixes a dictionary-batch bug in
the IPC encoder that made every HTTP exchange init unreadable on the
flechette backend.

A zero-row table has column.data.length == 0, so assembleDictionaryBatches
found no dictionaries and left idMap empty, while the batchMetadata path
still synthesised a RecordBatch and assembleSchema still stamped a
dictionary id. The stream then declared an id no message defined -- flechette
could not read its own output back, and neither could DuckDB. VGI hits this
on every exchange init, because the state token rides exactly such a batch.

Downstream effect: vgi-typescript's flechette integration lane goes from
250/252 to 252/252.

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

Author: rustyconover

bun.lock

@@ -1,6 +1,6 @@
 {
   "name": "@query-farm/vgi-rpc",
-  "version": "0.15.0",
+  "version": "0.15.1",
   "license": "Apache-2.0",
   "homepage": "https://vgi-rpc-typescript.query.farm",
   "repository": {
@@ -51,7 +51,7 @@
   "dependencies": {
     "@noble/ciphers": "^2.2.0",
     "@query-farm/apache-arrow": "^21.1.1",
-    "@query-farm/flechette": "^2.4.0",
+    "@query-farm/flechette": "^2.4.1",
     "fzstd": "^0.1.1",
     "oauth4webapi": "^3.8.6"
   },