release prime-tunnel 0.1.7

[JannikSt]

• Bumps prime-tunnel to 0.1.7
• Smoke test of the new release flow end-to-end: OIDC publish via Trusted Publishing + pypi-prod environment gate (required reviewer approval)

---

Note

Low Risk
Low risk change that only updates the SDK version constant with no functional code modifications.

Overview
Updates prime_tunnel.__version__ from 0.1.6 to 0.1.7 to publish the prime-tunnel 0.1.7 release.

^{Reviewed by Cursor Bugbot for commit 0a48078. Bugbot is set up for automated code reviews on this repo. Configure here.}