chore(deps): bump cryptography from 43.0.3 to 46.0.7 (#130)

Bumps [cryptography](https://github.com/pyca/cryptography) from 43.0.3 to 46.0.7.
- [Changelog](https://github.com/pyca/cryptography/blob/main/CHANGELOG.rst)
- [Commits](pyca/cryptography@43.0.3...46.0.7)

---
updated-dependencies:
- dependency-name: cryptography
  dependency-version: 46.0.7
  dependency-type: direct:production
...

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Author: dependabot[bot]

pyproject.toml

@@ -81,7 +81,7 @@ dependencies = [
     "uvicorn[standard]>=0.32,<1",
     "mcp>=1.0,<2",
     "apscheduler>=3.10,<4",
-    "cryptography>=43,<44",
+    "cryptography>=43,<47",
     # LLM providers (bundled — no extras needed)
     "anthropic>=0.40,<1",
     "openai>=1.50,<3",