chore: bump TechAPI submodule to b6615b1

TechEngineBot · TechEngineBot · commit a3cfb5dcfd4a · 2026-06-23T06:12:05.000Z
diff --git a/TechAPI b/TechAPI
@@ -1 +1 @@
-Subproject commit 09be5d23c04661eae52746c8a240309d9f984e88
+Subproject commit b6615b14d929ad4287049f7a085bdc3405c69935
