Keep the documented downstream replacement set synchronized with go.mod

[Vonng]

Summary

The README says downstream embedders must adopt the matching SILO replacement set, but the example is stale.

README currently shows:

• MCLI commit 70a2950;
• silo-pkg v3.12.2.

Current go.mod selects:

• MCLI commit 5ed037e;
• silo-pkg compatibility commit 748c94b.

Impact

Go does not propagate replacement directives from dependency modules. A server following the documented example therefore builds a different graph and misses the fixes this Console release is intended to consume.

This inconsistency was introduced by the post-v2.2.1 dependency updates.

Acceptance criteria

• Update the README example to the final released dependency set chosen for the next release.
• Ensure comments in go.mod, README, and CHANGELOG describe the same supported combinations.
• Add a CI check that compares the documented replacement block with the effective go.mod replacements, or generate the block from one source of truth.
• Test the copied README block in a minimal downstream embedder module.
• Explicitly document unsupported partial-override graphs.