Qualify Release 2.0 SDK artifacts against the SRM consumer

Adds downstream verification of the exact TF-SDK wheel using its source revision and checksum. Checks dependencies and runs SRM unit and SDK bridge tests, preserving the existing checks in normal SRM pipelines.

The source includes current develop. Bootstrap wiring and the published SDK 2.0.0rc4 dependency are already integrated. The remaining diff contains CI, the verification helper and documentation, and five registry tests.

Verified at 9607e88: all five native CI jobs and 579 tests passed. Live OEG-driven acceptance remains a separate check.