build: bump to v0.7.6

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: dvilelaf

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "iwa"
-version = "0.7.5"
+version = "0.7.6"
 description = "A secure, modular, and plugin-based framework for crypto agents and ops"
 readme = "README.md"
 requires-python = ">=3.12,<4.0"